At-CostRoofing

Roofing reference

Roofing glossary

Search plain-language definitions for roofing construction, estimates, contracts, ventilation, warranties, and insurance documents.

274 plain-language definitions

Showing 274 of 274 terms.

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3-tab shingles
Asphalt shingles made with cutouts that create three flat tabs across each strip. They usually have a simpler appearance than architectural shingles. Product specifications, wind ratings, installation instructions, and warranties vary by manufacturer and product line.

A

Activity code
A short code used in some estimating systems to identify the kind of labor or operation attached to a line item. The code is software vocabulary; the estimate still needs a plain-language description of the actual work.
Actual cash value (ACV)
An insurance valuation that generally starts with the cost to repair or replace covered property and subtracts depreciation. The policy and carrier's written claim decision control how ACV is calculated and paid; it is not the contractor's construction price.
Additional insured
A person or organization added to another party's insurance policy for specified protection under an endorsement. The endorsement—not a certificate alone—defines who is covered, for what risk, and for how long.
Additional living expenses (ALE)
Insurance coverage that may pay certain increased living costs when a covered loss makes a home unfit to occupy. Eligibility, duration, limits, documentation, and eligible expenses come from the policy and carrier's claim decision.
Adjuster
A person who investigates and evaluates an insurance claim for a carrier or, when separately hired, for a policyholder. An adjuster handles claim matters. A roofing contractor documents and prices construction work but does not decide coverage.
Adjuster licensing
The state authorization required for a person to perform regulated insurance-adjusting work. License categories and exceptions vary, and a contractor license or roofing experience does not authorize someone to interpret coverage as an adjuster.
Aggregate limit
The most an insurance policy will pay for all covered claims or occurrences during a stated policy period, subject to the policy's terms. It is different from a per-occurrence limit.
All-perils policy
An informal label sometimes used for a policy that covers multiple named causes of loss. It does not mean every possible loss is covered; declarations, exclusions, limitations, deductibles, and endorsements still control.
All-risk policy
A common informal name for open-perils coverage, which generally covers direct physical loss unless the cause is excluded or limited. The phrase never replaces the actual policy language.
Aluminum coil stock
Sheet aluminum supplied in a roll and formed on site for details such as fascia wrap, trim, or flashing. Thickness, finish, width, compatibility, fastening, and the formed profile should be specified.
Anti-concurrent causation clause
Policy language addressing a loss produced by covered and excluded causes acting together or in sequence. Its wording and legal effect are policy- and jurisdiction-specific and require qualified coverage review.
Appraisal clause
A policy provision describing an appraisal process for a dispute over the amount of loss. It typically does not decide whether the policy covers the loss, and the exact procedure, deadlines, and costs come from the policy and applicable law.
Appraisal demand
Written notice invoking a policy's appraisal process. A valid demand should follow the policy's form, delivery, timing, and dispute requirements; a contractor estimate by itself is not an appraisal demand.
Appraisal process
A method in which the policyholder and insurer each select an appraiser and unresolved amount-of-loss questions may go to an umpire. The policy and current law determine scope, procedure, cost, and effect.
Appraiser
A person selected to evaluate the amount of a property loss in a policy appraisal. An appraiser's role is different from an insurance adjuster, roofing contractor, or real-estate appraiser.
Apron flashing
A flashing piece installed across the lower, downhill side of a chimney, wall, curb, or other roof penetration. It directs water onto the roof surface and must integrate with adjacent side and counterflashing.
Arbitration
A private dispute-resolution process in which an arbitrator decides issues submitted under an agreement. Whether arbitration applies, what it covers, and whether the decision is binding depend on the contract and law.
Architectural shingles
Asphalt shingles built with laminated layers that create a dimensional appearance. Sometimes called dimensional shingles, they differ by product line in weight, installation requirements, tested classifications, available colors, and warranty terms.
Asphalt shingles
A roof covering made from a fiberglass or organic mat, asphalt, mineral granules, and other components. The exact shingle product—not the broad category—determines its published installation instructions, classifications, and warranty.
Assignment of benefits (AOB)
An agreement that transfers specified insurance-policy benefits or payment rights from a policyholder to another party. Its availability and effect are governed by the document, policy, and law; it is not the same as hiring a contractor.
Authority having jurisdiction (AHJ)
The government agency or official responsible for enforcing the applicable construction rules for a property. The AHJ may be a city, county, or another authority, and its adopted code, permit process, and inspection requirements can change.

B

Back charge
An amount one contracting party seeks to deduct or recover for work, damage, delay, or cost it says another party was responsible for. The contract, notice, evidence, and authorization determine whether the charge is valid.
Bad faith claim
A legal allegation that an insurer handled a claim in a way that violates applicable duties. It is not established simply because the parties disagree about scope or price and should be evaluated by a qualified attorney.
Betterment
An improvement that places property in a condition materially better than before the loss or planned work. Whether betterment affects a construction price or insurance payment depends on the selected upgrade, contract, policy, and claim decision.
Betterment charge
A separately identified amount for an owner-selected improvement beyond the agreed repair or replacement scope. The proposal should distinguish the upgrade from work required to restore the existing property.
Blistering
Raised areas or bubbles that can form within some roofing materials. Blistering is a condition to document, not a complete diagnosis by itself; the material, location, pattern, age, weather exposure, and product guidance all matter.
Box vent
A static exhaust vent installed through the upper portion of a roof. Its published net free area and placement must be considered with available intake ventilation and the size of the connected attic zone.
Builder's risk insurance
Property coverage intended for buildings or materials during construction. Covered property, causes of loss, parties, dates, occupied structures, exclusions, and deductibles depend on the policy.
Building permit
Formal authorization from the applicable local authority for work covered by its rules. Whether a roof project requires a permit, which documents are needed, and which inspections apply must be verified for the exact property and current scope.
Built-up roofing (BUR)
A low-slope roof assembly made from multiple layers of reinforcing material and bitumen, often finished with aggregate or a coating. Layer count, attachment, surfacing, flashing, drainage, and repair compatibility are system-specific.

C

Cant strip
A triangular or sloped strip used at some low-slope roof-to-wall transitions to ease the change in plane and support the membrane or flashing. Material and dimensions must match the roof-system detail.
Carrier
The insurance company that issued or services a policy and evaluates claims under it. The carrier and policyholder handle coverage and claim payment; At-Cost remains focused on documenting and pricing the construction scope.
Carrier response time
The period an insurer takes to acknowledge, investigate, request information about, accept, deny, or pay a claim. Policy terms and state law can set different deadlines, and catastrophe conditions may affect them.
Catastrophe adjuster
An adjuster assigned to claims arising from a large storm or disaster. The person may be a staff, independent, nonresident, or emergency adjuster depending on the carrier and state rules.
Catastrophe team (CAT team)
A group organized by an insurer, adjusting firm, contractor, or service provider to handle increased work after a major event. The label does not establish any person's license, authority, or role.
Categories (Xactimate)
Trade groupings used by Xactimate to organize estimate line items, such as roofing or gutters. A category helps navigation but does not prove that a line item belongs in a particular construction or insurance scope.
Cause of loss
The event or condition alleged to have caused property damage, such as wind or hail. An observed roof condition does not establish cause by itself. Dates, weather records, inspection evidence, policy language, and the carrier's investigation may all be relevant.
Certificate of completion
A document stating that contracted work has been completed. The form, required signatures, and legal effect depend on the contract, carrier, lender, permit authority, or other party requesting it.
Certificate of insurance (COI)
A summary showing certain insurance information for a business at the time the certificate is issued. A COI is not the policy itself and does not independently change coverage. Homeowners should verify the named business and current dates.
Change order
A written amendment to an accepted contract or scope. A useful change order identifies the newly discovered or requested work, price effect, schedule effect, and approval before the additional work proceeds whenever practical.
Chimney cap
A protective cover at the top of a chimney intended to help keep out precipitation, debris, or animals while allowing proper exhaust. It is separate from the flashing that manages water where the chimney meets the roof.
Claim documentation
Records used to describe an insurance-related loss, such as dated photographs, measurements, inspection notes, estimates, invoices, communications, and proof of completed work. Documentation supports review but does not guarantee coverage or payment.
Claim lifecycle
The stages a claim may pass through, such as notice, investigation, estimate, coverage decision, payment, supplemental review, completion documentation, and closure. Actual stages and deadlines depend on the policy, carrier, and law.
Claim reserve
An insurer's internal estimate of the amount it may need for a claim. A reserve is not a promise of payment, a coverage decision, or the contractor's construction price.
Claim severity
A general measure of a claim's size or complexity, often based on expected cost, damage, risk, or handling needs. The term is used differently across insurers and analytics systems.
Claims examiner
A carrier representative who reviews claim information, coverage, estimates, payments, or adjuster work. Exact authority depends on the insurer's organization and assignment.
Claims process
The policy- and carrier-defined sequence for reporting, investigating, documenting, deciding, and paying or denying a claim. The construction contract remains separate from that insurance process.
Code compliance
Meeting the construction requirements adopted and enforced for the project. Code compliance can depend on the property, scope, existing conditions, approved materials, manufacturer instructions, and the local authority's interpretation.
Code upgrade
Work needed to bring an affected part of a building into compliance with currently enforced requirements when existing construction differs. The authority determines the requirement; insurance payment depends on coverage such as ordinance or law.
Code upgrade supplement
Additional claim documentation asking a carrier to consider verified code-required work not included in an earlier estimate. It should identify the current authority requirement, affected scope, quantity, and cost without implying guaranteed coverage.
Coinsurance
A policy provision that can affect payment when insured property does not meet a stated insurance-to-value requirement. The calculation and any exceptions depend on the policy and applicable law.
Collateral damage
Damage outside the primary roof area that may be associated with the same event or construction work, such as marks to gutters, screens, siding, or finishes. Each condition and cause should be documented separately.
Comparative negligence
A legal rule that allocates responsibility among parties according to their share of fault. It is a legal conclusion, not something a roof estimate can decide.
Contingency fee
Compensation calculated as a percentage of an amount recovered or another specified result. Whether it is permitted and how it must be disclosed depend on the service, agreement, licensing, and law.
Coping
A cap installed over the top of a parapet or wall to shed water and protect the assembly. Joints, cleats, attachment, slope, end conditions, metal, and integration with roofing and wall flashing matter.
Copper flashing
Flashing fabricated from copper sheet. Gauge or weight, seams, soldering, fasteners, drainage, runoff staining, and compatibility with adjacent metals and materials should be specified.
Core sample
A small cut through a roof assembly used to identify existing layers, thicknesses, moisture, or substrate conditions. The location should be documented and repaired with a compatible detail after examination.
Cosmetic damage
A visible change that may affect appearance without necessarily reducing a material's ability to perform. Whether a condition is cosmetic, functional, covered, repairable, or warrantable requires evidence and may be defined differently by a policy or product document.
Cosmetic damage exclusion
Policy language that limits or excludes payment for specified appearance-only damage, often subject to definitions and exceptions. The exact endorsement controls whether and how it applies.
Counterflashing
Flashing that covers or overlaps another flashing component, commonly at masonry walls or chimneys, so water is directed onto the roof surface. Its success depends on the complete wall-and-roof detail, not the visible metal alone.
Creased shingle
An asphalt shingle with a visible fold or fracture line, sometimes associated with lifting. Pattern, seal condition, fasteners, brittleness, handling, and weather evidence help evaluate cause and repairability.
Cricket
A small raised roof structure built to divert water around the uphill side of a chimney or another obstruction. Its need and dimensions depend on the roof geometry, obstruction width, drainage, adopted code, and construction detail.

D

Deductible
The portion of a covered loss the policyholder is responsible for under the insurance policy. In Texas, a contractor cannot waive, absorb, rebate, or otherwise pay a residential property-insurance deductible as an inducement to the sale.
Denied claim
A claim the carrier has declined in whole or in part based on its coverage decision. The written denial should identify the decision and policy basis; it does not by itself determine whether roof work is needed.
Depreciation
An insurance calculation that may reduce a claim valuation for age, condition, expected life, or other policy-defined factors. It is separate from a contractor discount and does not determine what construction work actually costs.
Depreciation holdback
An amount of recoverable depreciation the carrier has not included in an initial payment. Release generally depends on policy conditions, completed work, documentation, deadlines, and the carrier's review.
Depreciation schedule
A table or method used to assign depreciation based on factors such as age, condition, or expected life. The policy and carrier's claim calculation—not a generic schedule—control the actual amount.
Desk adjuster
An adjuster who primarily handles a claim from an office using submitted records, reports, communications, and field findings. A separate field adjuster or inspector may gather site information.
Documentation package
An organized set of records supporting a construction or claim review, commonly including photographs, measurements, scope, estimates, invoices, product documents, permits, changes, inspections, and closeout evidence.
Dormer
A roofed projection that extends from a sloped roof, often containing a window or vent. Dormers create walls, valleys, eaves, ridges, and flashing transitions that add measurement and water-control details.
Downspout
A vertical pipe that carries water from a gutter toward the ground or drainage system. Size, quantity, outlet location, slope, and discharge path affect whether roof runoff is moved away from the building safely.
Drip edge
Metal installed along roof edges to help direct water away from the roof deck and fascia and into the drainage path. Profile, lap, fastening, and its relationship to underlayment can vary with the edge and applicable instructions.
Drip edge profile
The cross-sectional shape and dimensions of drip-edge metal. Face depth, flange width, hem, angle, finish, and edge location should match the roof detail and applicable instructions.
Dry-in
The stage when temporary or permanent water-shedding layers have been installed to protect the roof deck before the finished roof covering is complete. Dry-in is not the same as a finished, warrantable roof system.
Duty to cooperate
A policyholder obligation, commonly stated in an insurance policy, to provide requested information and assist with claim investigation. The exact requests, deadlines, and consequences come from the policy and law.
Duty to mitigate
A policyholder's responsibility, often stated in the policy, to take reasonable steps to protect property from further damage after a loss. Safety comes first; temporary protection should be documented, and permanent work should not erase needed evidence without coordination.
Dwelling coverage
The part of a homeowners policy that generally applies to the residence structure, subject to the policy's definitions, limits, exclusions, deductibles, and endorsements. Only the policy and carrier's written decision establish coverage for a particular roof loss.

E

Eave
The lower edge of a sloped roof, often projecting beyond the exterior wall. Eaves commonly involve the roof deck edge, drip edge, starter shingles, fascia, gutters, soffit, and intake ventilation.
Emergency tarping
A temporary covering installed to reduce water entry until a safe inspection and permanent repair can occur. Tarping should be secured without creating unnecessary damage, documented before and after installation, and treated as temporary protection.
Endorsement
A document that adds to, removes, or changes terms in an insurance policy. An endorsement can change roof coverage, deductibles, valuation, exclusions, or claim procedures, so the actual policy package must be reviewed.
EPDM roofing
A synthetic rubber membrane used on low-slope roofs. The membrane, thickness, attachment, seams, insulation, cover board, flashing, drainage, and approved accessories form a system that should be specified together.
Estimate revision
A new version of an estimate that changes quantities, line items, notes, prices, or scope. A useful revision identifies what changed and preserves the prior version for comparison.
Estimating best practices
Methods for producing a clear, reviewable estimate, including current measurements, named materials, accurate quantities, plain-language scope, stated assumptions, source-backed unit prices, photographs, and version control.
Estimator
A person or tool that develops expected quantities, scope, labor, materials, and price. An estimate is based on its inputs and assumptions; field conditions, selections, and approved changes can alter the final work and cost.
ESX file
A project file exported from Xactimate. It can carry estimate and project data for import into compatible Xactimate workflows, but it is not a human-readable substitute for the estimate report and supporting records.
Examination under oath (EUO)
A formal, sworn examination that an insurer may request under policy terms during a claim investigation. It can have significant legal consequences, so a policyholder should consider qualified legal guidance.
Exclusion
Policy language that removes specified causes, property, conditions, or costs from coverage. Exclusions differ by policy and endorsement and should not be inferred from a roofing estimate or general article.
Exhaust ventilation
Openings or devices near the upper portion of an attic that allow air to leave. Exhaust must be evaluated with intake ventilation, the connected attic volume, air sealing, product ratings, and current code requirements.

F

Fascia
The board or finish at the roof edge, commonly behind a gutter and next to the soffit. Rot, attachment, gutter loads, drip-edge placement, and finish material can affect whether fascia work belongs in a roof scope.
Felt underlayment
Asphalt-saturated sheet material installed over roof decking beneath some roof coverings. Product type, required layers, fastening, laps, slope limits, exposure time, and compatibility should follow the selected roof system's instructions.
Field adjuster
An adjuster who inspects property or gathers site information in person for a claim. The carrier still controls coverage decisions and the adjuster's authority.
Final inspection
The last inspection required by a permit authority before it closes the permitted work. A passed final inspection does not replace the contractor's punch list, manufacturer requirements, warranty documents, or the homeowner's contract review.
Flashing
Material shaped and installed to direct water away from joints, walls, valleys, edges, and roof penetrations. Flashing is a family of details, not one accessory, and each transition needs a compatible design.
Flashing tape
A flexible adhesive tape used in some wall, window, roof, or flashing transitions. Approved substrate, primer, temperature, lap, pressure, UV exposure, and compatibility requirements vary by product.
Flat deductible
A deductible stated as a fixed dollar amount rather than a percentage. The declarations and applicable endorsements determine which deductible applies to a loss.
Forensic engineer
An engineer who applies technical analysis to investigate a failure, damage, or disputed cause. The assignment, discipline, evidence, methodology, and professional license define the scope of the opinion.
Functional damage
A condition that reduces a component's ability to perform its intended purpose or expected service. Establishing functional damage requires examination of the material and assembly; a visible mark alone may not answer the question.

G

Gable end
The exterior wall area beneath the two sloping edges of a gable roof. Its framing, sheathing, siding, vents, overhang, and wind exposure are different from the roof planes above it.
Gable roof
A roof with two sloping planes that meet at a ridge and form a triangular wall at each end. Wind exposure, ventilation paths, overhangs, flashing, and bracing still depend on the actual building.
Galvanized steel flashing
Steel sheet coated with zinc for corrosion protection and formed into a flashing detail. Thickness, coating, finish, cuts, fasteners, seams, and compatibility with adjacent materials affect service life.
General contractor
A contractor responsible for coordinating an agreed construction scope, which may include hiring and supervising subcontractors, purchasing materials, scheduling, documentation, and closeout. Exact duties come from the contract and applicable law.
General liability insurance
Business insurance that may cover specified third-party bodily injury, property damage, or related liability claims, subject to limits and exclusions. It does not guarantee workmanship or replace workers' compensation coverage.
Granule loss
The absence or displacement of mineral granules from an asphalt shingle surface. Some loose granules can occur from manufacturing, handling, installation, and weathering; the amount, pattern, exposed asphalt, age, and cause must be evaluated.
Gutter
A horizontal channel at a roof edge that collects runoff and directs it to outlets and downspouts. Profile, size, slope, seams, hangers, drip-edge relationship, and discharge capacity are part of the system.
Gutter system
The gutters, outlets, downspouts, fasteners, transitions, and discharge path that collect and move roof runoff. Proper performance depends on roof area, rainfall, slope, debris, capacity, attachment, and where the water exits.

H

Hail damage
Physical change attributed to hail. A roofing conclusion should separate observed conditions from cause and consider the material, impact pattern, collateral indicators, weather timing, installation, age, and applicable policy or warranty language.
Hip
The sloping external intersection formed where two roof planes meet. Hip shingles or other system-specific components cover and protect this joint.
Hip ridge
Another name sometimes used for a roof hip: the sloping external line where two roof planes meet. The covering and fastening detail should use components approved for the selected roof system.
Hip roof
A roof whose sides generally slope down toward the exterior walls. The shape can change measurements, material quantities, ridge-and-hip accessories, ventilation layout, and wind details.
Hold harmless agreement
A contract provision in which one party agrees to protect another from specified claims or losses. Scope and enforceability depend on the wording and law and should be reviewed before signing.
Holdback
Money withheld until stated conditions are met. It may refer to contract retainage or insurance depreciation, so the document should identify who holds it, why, how much, and what releases it.
Homeowners association (HOA)
A private association that may enforce recorded neighborhood rules, architectural standards, or approval procedures. HOA approval is separate from a government permit, and requirements should be verified from current association documents for the property.

I

Ice and water membrane
A self-adhering waterproofing layer used at vulnerable roof areas such as eaves, valleys, walls, or penetrations when required by the system or local conditions. Approved locations, laps, substrate preparation, and compatibility vary by product.
Ice dam damage
Damage associated with meltwater backing up behind ice at a roof edge. Insulation, attic air leakage, ventilation, snow, temperature, drainage, and the roof assembly can all affect the condition.
Impact resistance rating
A classification based on a specified laboratory test of a roof-covering material, such as UL 2218. A rating describes tested performance under that method; it does not make a roof hail-proof or guarantee insurance coverage.
Indemnification
A contract obligation requiring one party to compensate or defend another for specified losses or claims. The exact trigger, scope, exclusions, and enforceability come from the agreement and law.
Indemnity
Protection against a specified loss or legal responsibility, often created by an insurance policy or contract. It does not mean a party is protected from every risk.
Independent adjuster
An adjuster hired by an insurance carrier on a contract basis rather than employed directly by it. The adjuster's authority and role come from the carrier assignment and applicable claim rules.
Infrared inspection
An inspection using infrared imaging to identify surface-temperature patterns that may warrant further investigation. The image does not see through materials or prove moisture or damage without corroborating evidence.
Inspection protocol
A documented method for how an inspection will be performed, including safety limits, areas reviewed, tools, observations, photographs, sampling, and reporting. It helps distinguish what was checked from what was outside scope.
Intake ventilation
Openings near the lower part of an attic, often at soffits or eaves, that allow outside air to enter. Intake area must be evaluated with exhaust area and kept open from the vent through the attic air path.

K

Kickout flashing
A flashing detail at the bottom of a roof-to-wall intersection that directs water away from the wall and into a gutter or drainage path. Missing or poorly integrated kickout flashing can send roof runoff behind exterior finishes.

L

Labor cost
The amount charged for people to perform the specified work. A useful proposal distinguishes the work included, crew requirements, access, safety, tear-off, installation, cleanup, and any conditions that can change labor.
Labor minimum
A minimum labor charge applied when a small task still requires mobilization, setup, safety, tools, supervision, or a crew. The estimate should identify the trade, included work, and why the minimum applies.
Labor rate dispute
A disagreement about the labor price, crew composition, productivity, or time used in an estimate. Useful review separates the work required, local labor source, date, skill level, burdens, and project conditions.
Lien waiver
A document in which a contractor, subcontractor, or supplier gives up specified lien rights, usually in connection with payment. Waiver forms and timing have legal consequences, so the applicable form and Texas requirements should be followed.
Like kind and quality
A phrase used to describe replacement property or materials intended to be reasonably similar in type and quality to what existed. Exact equivalence depends on availability, specifications, condition, code, and policy language.
Line item
One separately described unit of work, material, allowance, or charge in an estimate or invoice. A line item is useful only when its quantity, unit, specification, and included work are clear enough to review.
Line item dispute
A disagreement about whether an estimate line belongs, its quantity, unit, price, description, or included operations. Resolve each part against measurements, scope, product requirements, current pricing evidence, and controlling documents.
Litigation
The process of resolving a dispute in court. Filing deadlines, claims, evidence, procedure, and remedies are legal matters that require qualified guidance.
Loss date
The date an insurance-related loss is reported to have occurred. It can affect the applicable policy, notice deadline, weather review, and claim investigation and should be supported rather than guessed.
Loss of use
The inability to use property as intended after a loss. In homeowners insurance, related coverage may be called additional living expenses, but the policy defines covered circumstances and payment limits.
Loss of use coverage
Insurance coverage that may pay specified added expenses or lost rental value when covered damage prevents normal use of a residence. Terms, limits, duration, and documentation come from the policy.
Low-slope roof
A roof with a shallow pitch that requires materials and details intended for low-slope drainage conditions. The selected membrane or roof system, substrate, insulation, seams, edges, penetrations, and drainage should be designed together.

M

Managed repair program
An insurer or administrator program that offers or assigns participating contractors for covered repairs. Participation terms vary, and homeowners should confirm whether contractor choice, warranties, scope approval, and payment procedures are affected.
Manufacturer warranty
A written promise from a product or system manufacturer, subject to stated coverage, exclusions, duration, installation rules, registration, and claim procedures. It is separate from a contractor's workmanship warranty.
Matching provision
Policy or legal language addressing whether undamaged materials must be replaced when a reasonably uniform appearance cannot otherwise be achieved. Application depends on the exact wording, jurisdiction, material availability, and facts.
Matching requirement
A requirement alleged to call for replacement of adjacent undamaged material so repaired property has a reasonably consistent appearance. The source may be a policy, law, contract, HOA rule, or product constraint and must be identified.
Material order
The documented list of products, colors, quantities, accessories, delivery details, and returns requested from a supplier. It should match the accepted roof system and account for measured waste without substituting unapproved products.
Material upgrade
An owner-selected product or system that exceeds the agreed base specification. The change should identify any added cost, installation requirement, warranty effect, lead time, and responsibility.
Mechanical damage
Damage caused by contact, tools, foot traffic, equipment, fasteners, handling, or another physical action rather than ordinary weathering. Pattern, location, timing, and surrounding evidence help identify it.
Mechanics lien
A statutory claim that certain contractors, subcontractors, or suppliers may assert against real property for unpaid qualifying work or materials. Texas notice, contract, filing, and deadline rules are specific and should be handled with qualified guidance.
Mediation
A confidential dispute-resolution process in which a neutral mediator helps parties seek a voluntary agreement. The mediator generally does not impose a decision unless the parties separately agree otherwise.
Modified bitumen
A low-slope roofing material made from polymer-modified asphalt, typically supplied in rolls and installed as part of a layered system. Attachment method, laps, surfacing, insulation, flashing, and drainage are product-specific.

N

Nail pattern
The required number, spacing, and location of fasteners for a roof product or assembly. Nail patterns can change with product instructions, wind design, substrate, roof area, or local requirements.
Nail pop
A fastener that has backed out or lifted enough to raise or puncture the roof covering. The repair should address the fastener, affected material, substrate, and water-shedding detail rather than only covering the bump.
Named-peril policy
A policy that covers losses caused by perils specifically listed in the contract, subject to exclusions, limits, and conditions. If a cause is not named, coverage may not apply.
Named-storm deductible
A deductible triggered by a storm meeting the policy's definition, which may refer to an officially named tropical storm, hurricane, or other event. The declarations and endorsement control the trigger and amount.
Net free area (NFA)
The unobstructed area through which air can move through a ventilation product, usually published in square inches per unit or per linear foot. The vent's outside dimensions are not its NFA.
Non-recoverable depreciation
Depreciation that an insurance policy or claim decision does not make eligible for later payment. The policy terms and carrier's written explanation control whether depreciation is recoverable.
Notice of claim
Communication telling an insurer that a loss may be covered under a policy. Policies can specify who must give notice, required information, acceptable delivery, and deadlines.

O

Occurrence
An event or series of related events treated as one loss or liability incident under policy language. The definition can affect limits and deductibles and is controlled by the policy and law.
Ordinance or law coverage
Insurance coverage that may apply to certain added costs caused by enforcement of current building laws after a covered loss. Availability, limits, exclusions, and required documentation depend on the policy and claim decision.
Oriented strand board (OSB)
An engineered wood panel made from compressed wood strands and adhesive, commonly used as roof sheathing. Panel rating, thickness, span, edge support, condition, fastening, and moisture exposure matter for roof-deck use.
Overhead and profit (O&P)
Estimate terms often used for a contractor's business overhead and profit. Their treatment in an insurance estimate does not set a contractor's price or establish coverage; the construction contract and policy claim remain separate records.
Overhead and profit dispute
A disagreement about whether or how contractor overhead and profit appears in an estimate or claim valuation. It should not be confused with the contractor's independently agreed construction price.
Override pricing
Replacing a software or default unit price with a different supported price. A useful override records the source, date, location, specification, tax or delivery treatment, and reason.

P

Parapet wall
A wall that extends above a roof edge. The roof-to-wall transition needs compatible base flashing, counterflashing or coping, drainage, termination, and movement details.
Peel-and-stick membrane
A self-adhering sheet membrane used in some underlayment or low-slope applications. Substrate preparation, primer, temperature, laps, exposure limits, compatibility, and approved use vary by product.
Percentage deductible
An insurance deductible calculated as a percentage of the policy's stated coverage amount or another policy-defined base, not as a percentage of the repair estimate. The declarations and endorsements control the calculation.
Pipe boot
A flashing assembly that seals around a plumbing vent pipe or similar round roof penetration. Material compatibility, pipe size, slope, fastening, seal location, and expected service life affect the detail.
Pipe collar
A ring or flexible component used as part of some pipe-penetration flashing assemblies. It must fit the pipe and integrate with the boot or flashing rather than serving as an unsupported surface patch.
Pitch
A way to describe roof steepness, commonly written as vertical rise over 12 inches of horizontal run, such as 6:12. Pitch affects measurement, material eligibility, installation method, access, and safety planning.
Plywood
An engineered wood panel made from bonded layers of wood veneer. When used as roof decking, its rating, thickness, span, support, condition, fastening, and moisture exposure should be checked.
Policy endorsement
An amendment that changes an insurance policy's standard terms. Endorsements may add, restrict, or remove coverage and should be read with the declarations and base policy.
Policy limits
The maximum amounts an insurer may pay for specified coverages or losses, subject to sublimits, deductibles, exclusions, and other terms. A limit is not a promise that every cost below it is covered.
Policyholder
The person or entity named in an insurance policy and entitled to its protections, subject to the policy terms. The policyholder communicates with the carrier about coverage and payment and separately hires the contractor for construction.
Ponding water
Water that remains on a low-slope roof after drainage should reasonably occur. The depth, duration, location, slope, drains, structural deflection, insulation, and roof-system requirements help determine the needed correction.
Power vent
An electrically powered attic exhaust fan. Selection should consider rated airflow, controls, make-up intake, attic air sealing, combustion safety, maintenance, noise, and whether it could pull conditioned air from the home.
Pre-existing damage
A condition that existed before the event, policy period, inspection, or contracted work being considered. Age alone does not establish it; dates, records, patterns, and condition evidence matter.
Preferred vendor program
An insurer or administrator network of contractors or service providers. Program participation does not replace the homeowner's review of scope, contract, credentials, warranty, and contractor choice rights.
Premium
The amount charged by an insurer for coverage under a policy. It is separate from the roof construction price, deductible, claim valuation, and any product described as a premium-grade roofing material.
Price list
A dated set of unit prices used by estimating software or an organization. It is an input, not proof of the current price for the exact product, labor, tax, delivery, and project conditions.
Price list region
The geographic market assigned to an estimating-software price list. Regional boundaries are approximations and may not match the actual supplier, crew, or property market.
Price override
A manual replacement of a default estimating price. The estimate should explain the source, date, calculation, and included costs so another reader can verify it.
Pricing dispute
A disagreement about unit prices, quantities, labor, taxes, overhead, or scope valuation. Separate construction-contract pricing from insurance coverage and support each disputed input with current evidence.
Progress billing
Invoicing portions of a project as defined work, milestones, stored materials, or time periods are completed. The contract should state the billing schedule, evidence, retainage, and approval process.
Progress payment
A payment made before final completion for an agreed portion of work or materials. The payer should match it to the contract, invoice, completed milestone, lien documents, and remaining balance.
Project manager
The person assigned to coordinate a project's scope, schedule, people, materials, communication, changes, records, and closeout. Authority and responsibilities come from the organization and contract.
Proof of loss
A policyholder's formal statement describing a claimed loss and requested amount, often signed and sometimes sworn. Required format, content, and deadline come from the policy and carrier request.
Proof of loss form
The document used to submit a formal proof of loss. It should be completed from supported facts and preserved with attachments and delivery evidence.
Property damage
Physical injury to or loss of use of tangible property. The term may have different meanings in a liability policy, property policy, contract, inspection, or lawsuit.
Proximate cause
A legal concept connecting an event to a loss closely enough for responsibility or coverage analysis. It is not established by simply observing roof damage and may require legal or technical review.
Public adjuster
A licensed adjuster hired by a policyholder to assist with an insurance claim. A public adjuster represents the policyholder in claim matters; a roofing contractor should not perform that role unless separately qualified and legally authorized.
Punch list
A documented list of incomplete, corrective, or closeout items identified near the end of a project. Each item should have a responsible party and a clear completion record before final closeout.

R

Rafter
A sloped structural framing member that supports the roof deck. Rafters are different from the sheathing above them, and structural alterations require appropriate design and approval.
Rake edge
The sloped outer edge of a gable roof from eave to ridge. It commonly involves deck edge, drip edge, starter or edge treatment, overhang, fascia or trim, and wind fastening.
Re-inspection
A later inspection performed after new information, corrective work, or a request for another review. It should identify what changed, what was rechecked, and any remaining limits.
Re-roof
Work that replaces or adds a roof covering on an existing building. The scope may include tear-off, deck repair, underlayment, flashing, ventilation, accessories, and inspections; local rules determine whether recovering an existing roof is allowed.
Recoverable depreciation
Depreciation an insurer may make eligible for additional payment after policy conditions are met, often after covered work is completed and documented. The policy, deadlines, and carrier's written claim instructions control recovery.
Reglet
A groove or receiver in masonry or another wall surface used to secure or terminate counterflashing. Depth, sealant, metal, joints, and water-shedding integration are part of the detail.
Reopened claim
A previously closed claim returned to active review because of new information, disputed scope, additional damage, or another permitted reason. The carrier and policy determine whether and how reopening occurs.
Replacement cost value (RCV)
An insurance valuation based on the cost to repair or replace covered property without subtracting depreciation, subject to policy terms, limits, and claim procedures. RCV is not automatically the amount a contractor must charge.
Reservation of rights
Written notice that an insurer is investigating or handling a claim while preserving the ability to deny some or all coverage under identified policy terms. It is not a final coverage decision by itself.
Reservation of rights letter
The document communicating an insurer's reservation of rights. It should identify the claim, relevant issues, and policy provisions and may warrant qualified legal review.
Retainage
A portion of contract payment withheld until completion or another stated condition. The agreement should identify the percentage or amount, release conditions, timing, and any applicable legal limits.
Ridge
The horizontal upper line where two sloped roof planes meet. The ridge may support a cap covering, an exhaust vent, or both, depending on the roof system and attic design.
Ridge cap
Shingles, metal, tile, or another component made to cover and weatherproof hips and ridges. The cap product, exposure, fastening, and compatibility should match the selected roof system.
Ridge vent
A continuous exhaust vent installed near a roof ridge. Its effective performance depends on published net free area, adequate intake, a clear air path, compatible ridge-cap installation, and the geometry of each attic zone.
Roof cement
A roofing-grade mastic used for certain sealing, flashing, repair, or maintenance details. It should be compatible with surrounding materials and used where the roof-system or repair instructions allow it, not as a substitute for missing flashing.
Roof deck (decking)
The structural surface attached to rafters or trusses that supports the roof assembly. Common wood decks use plywood or OSB. Thickness, span, fastening, condition, and damaged-area replacement should be documented.
Roof penetration
Anything that passes through the roof assembly, such as a plumbing vent, exhaust duct, skylight, or equipment curb. Every penetration needs a compatible flashing and water-control detail.
Roof slope
The ratio of vertical rise to horizontal run. In residential roofing it is commonly expressed as inches of rise for 12 inches of run, such as 4:12, and it helps determine eligible materials and installation requirements.
Roof truss
An engineered structural framework that supports roof loads and transfers them to the building. Truss members should not be cut, drilled, or altered without an approved repair or design from an appropriate professional.
Roof ventilation
The planned movement of air through an attic or roof assembly using intake and exhaust openings. Sizing uses net free area, but air sealing, insulation, connected attic zones, moisture sources, product placement, and code conditions also matter.
Roofing consultant
A person engaged to advise, inspect, design, specify, or manage roofing work. Qualifications, independence, professional licensing, and scope vary, so the engagement should state the exact service and authority.
Roofing sealant
A sealant formulated for specified roofing materials and joints. Chemistry, substrate preparation, joint design, movement, exposure, tooling, and compatibility matter; sealant is not a universal replacement for flashing.
Roofing square (roof square)
A measurement unit equal to 100 square feet of roof surface. The roof's square count is not the same as the building footprint and does not by itself include waste, accessories, labor, or project conditions.

S

Salvage
Property or material remaining after a loss that retains value or can be reused. Ownership, credit, storage, disposal, and safe reuse may be addressed by the policy, carrier, contract, or law.
Satellite measurement
A roof diagram or quantity report created from aerial or satellite imagery. It can assist estimating, but tree cover, image age, resolution, hidden areas, additions, and roof complexity may require field verification.
Scope agreement
A written record that parties agree on specified work or estimate items. Agreement on construction scope does not necessarily mean an insurer has accepted coverage or a homeowner has accepted a contract price.
Scope creep
Uncontrolled expansion of project work without a clear change to price, schedule, and responsibility. Written change orders help keep newly discovered or requested work deliberate.
Scope of damage
A description of observed damaged components and quantities. It should separate observation from cause, coverage, repair method, and construction price.
Scope of loss
The property and work being evaluated in connection with an insurance claim. Carrier and policy usage can differ, so the estimate should still identify each component and quantity plainly.
Scope of work
The written description of work a contractor agrees to perform. A useful scope identifies quantities, products, included and excluded work, responsibilities, assumptions, allowances, changes, cleanup, inspections, and closeout.
Scope sheet
A document listing measured work, components, quantities, notes, and assumptions for estimating or review. It may precede pricing and should be tied to photographs and measurements.
Scupper
An opening through a parapet or roof edge that allows water to drain from a low-slope roof. Size, elevation, overflow function, flashing, conductor heads, downspouts, and discharge path are part of the detail.
Sheathing
Panels or boards attached to roof framing to form the roof deck. In common residential construction, sheathing may be plywood or OSB; its type, thickness, span, condition, and fastening should be confirmed.
Siding damage
Physical change to exterior wall cladding. Marks, cracks, displacement, finish changes, water entry, age, installation, and event evidence should be evaluated separately from roof conditions.
Sketch
A diagram used to represent building geometry and measurements for an estimate. A sketch may come from field measurements, imagery, or software and should be verified where accuracy affects scope.
Skylight
A glazed roof opening that brings light into a building. The skylight unit, curb or deck mount, flashing kit, underlayment integration, slope range, age, and interior shaft all affect replacement or reuse.
Snow guard
A device installed on some metal, slate, or tile roofs to help control sliding snow or ice. Layout, attachment, structural load, roof-system approval, and climate conditions require design rather than guesswork.
Soffit
The finished underside of an eave or roof overhang. A soffit may contain intake vents, but the vent openings and attic path must remain clear to provide usable airflow.
Soffit vent
An intake ventilation product installed in a soffit. Its published net free area, spacing, connection to the attic, and protection from insulation blockage determine how much intake it can provide.
Soft metal damage
Marks or deformation observed on thinner metal components such as vents, flashing, gutters, or downspouts. The condition may be useful collateral evidence but does not by itself establish cause or roof-covering damage.
Staff adjuster
An adjuster employed directly by an insurance company. The person's assignment may involve field inspection, desk handling, settlement authority, or supervision depending on the carrier.
Standing-seam metal roof
A metal roof system with raised seams between panels, commonly using concealed clips or fasteners. Panel profile, metal, finish, substrate, clip spacing, seams, penetrations, edges, and thermal movement should be specified.
Starter strip
The first course installed at roof edges beneath field shingles. It provides the required seal and fastening base at eaves or rakes and should be compatible with the selected shingle system.
Steep-slope roof
A roof steep enough to use water-shedding coverings such as many shingles, tiles, or metal systems rather than a low-slope membrane assembly. Product instructions define the permitted slope and any special underlayment requirements.
Step flashing
Individual flashing pieces woven with courses of roofing where a sloped roof meets a vertical wall. Each piece overlaps the one below so water drains onto the roof surface.
Storm chasing
Soliciting construction or claim-related work in areas recently affected by severe weather, often by businesses traveling from outside the market. Homeowners should verify identity, insurance, local requirements, contract terms, references, and permanent contact information.
Storm damage
Physical damage associated with a weather event such as wind or hail. The phrase should not replace inspection: observed conditions, event timing, cause, repairability, coverage, and construction scope are separate questions.
Subcontractor
A person or company hired by a contractor to perform part of the contracted work. The prime contractor's agreement with the homeowner should make responsibility, supervision, insurance, payment, and warranty roles clear.
Subrogation
An insurer's right, after paying a covered claim, to pursue recovery from a party it alleges is responsible. Policy language and law control the right and the policyholder's cooperation duties.
Subrogation waiver
An agreement or endorsement limiting a party's or insurer's right to pursue subrogation against specified parties. The contract and insurance endorsement must align for the waiver to have its intended effect.
Supplement
Additional claim information or an estimate revision submitted for carrier consideration after an earlier scope or payment. It should document the omitted, changed, or newly discovered item without assuming approval.
Supplement approval
A carrier's acceptance of some or all supplemental claim items. The written response should be compared line by line because approval may change amount, quantity, price, or coverage treatment.
Supplement denial
A carrier's written decision not to accept some or all requested supplemental items. The reason and policy basis should be reviewed separately from whether the construction work is needed.
Supplement request
The documented submission asking a carrier to review added or revised claim items. Measurements, photographs, invoices, product instructions, code records, and scope notes may support the request.
Surety bond
A three-party agreement in which a surety may answer for specified obligations of a bonded contractor or principal. Coverage, amount, claim procedure, and exclusions come from the bond, not from general liability insurance.
Synthetic underlayment
A manufactured sheet underlayment, often polymer-based, installed over roof decking beneath a roof covering. Strength, slip resistance, fastening, laps, exposure limits, compatibility, and approved roof coverings vary by product.

T

Tear-off
Removal of existing roof covering and related layers before installing the new roof system. The written scope should state how many layers are expected, what is removed, how debris is handled, and how concealed deck conditions become a change.
Temporary repair
Work intended to reduce immediate damage until a permanent repair can be designed and completed. The temporary condition, materials, limits, dates, and follow-up need should be documented.
Test square
A defined roof area examined closely to record conditions such as suspected impacts or surface marks. Its location, dimensions, observations, photographs, and selection method should be documented; it does not automatically represent every roof plane.
Thermal imaging
The use of an infrared camera to record surface-temperature differences. It can guide further investigation but does not independently prove hidden water, insulation defects, or damage.
Third-party administrator (TPA)
An outside company that performs specified policy or claim administration for an insurer or program. Its authority comes from the assignment and does not make it the insurance carrier.
Three-trade rule
An informal estimating practice sometimes used when considering general-contractor overhead and profit for work involving several trades. It is not a universal policy term, construction rule, or automatic coverage standard.
Total loss determination
A conclusion that property is uneconomical or not permitted to repair under the applicable valuation, damage, code, and policy rules. For a roof claim, replacement of the roof does not necessarily mean the entire building is a total loss.
TPO roofing
A thermoplastic polyolefin single-ply membrane used on low-slope roofs. Membrane thickness, color, attachment, welded seams, insulation, cover board, flashing, drainage, and warranty requirements make up the complete system.
Turbine vent
A roof-mounted exhaust vent with a rotating head driven by wind. Its rated vent area, placement, moving parts, available intake, and the connected attic zone should be evaluated with the rest of the ventilation design.

U

Umbrella policy
Liability insurance that may provide limits above specified underlying policies and sometimes broader coverage, subject to its own terms. It is not property coverage for repairing the insured's roof.
Umpire
A neutral person selected under an insurance appraisal process to resolve amount-of-loss differences the two appraisers cannot agree on. Selection, authority, fees, and decision rules come from the policy and law.
Underlayment
A water-shedding or waterproofing layer installed over the roof deck and beneath the finished roof covering. Material type, layers, laps, fastening, exposure limits, slope, and compatibility are defined by the assembly and applicable requirements.
Underpayment
A payment alleged to be less than the amount due under a policy, contract, invoice, or judgment. The governing document, accepted scope, calculations, prior payments, and evidence must be reconciled before drawing a conclusion.
Unit price
A price for one defined unit of work or material, such as each sheet of decking or each linear foot of flashing. The unit, included labor and materials, tax, disposal, overhead, and approval method should be clear.

V

Valley
The internal intersection where two sloped roof planes meet and concentrate water flow. Valley geometry, underlayment, flashing or shingle method, laps, fastening, and debris exposure are critical to the detail.
Valley flashing
Metal or another approved material installed in a roof valley to direct concentrated runoff. Width, laps, fastening, underlayment, open or closed configuration, and roof-covering compatibility should be specified.
Valued policy law
A state law that can require payment of a policy's stated value in specified total-loss circumstances. Application varies by jurisdiction, property, cause, and policy and requires qualified coverage review.
Vapor retarder
A material that limits water-vapor diffusion through part of a building assembly. Whether one is appropriate depends on climate, indoor moisture, air sealing, insulation, roof design, and building-science analysis; it is not the same as attic ventilation.

W

Waiver of subrogation
A contract provision or policy endorsement limiting recovery rights against specified parties after a loss. The construction agreement and insurance documents should be checked together.
Waste factor
Additional material included beyond measured roof area for cuts, laps, hips, ridges, valleys, starters, pattern alignment, breakage, and usable package quantities. The appropriate percentage depends on the actual geometry and product.
Wear pattern
The location and shape of repeated surface change caused by traffic, contact, drainage, movement, or ordinary use. A pattern can help distinguish ongoing exposure from one isolated event.
Weathering
Change caused by ordinary exposure over time, such as sunlight, temperature cycles, moisture, and wind. Weathering patterns should be distinguished from a specific impact or installation defect using material- and location-specific evidence.
Weathering vs. damage
The comparison between gradual exposure-related change and a discrete condition caused by an event, impact, defect, or installation issue. The distinction requires material-specific evidence rather than age-based assumptions.
Wind damage
Physical change attributed to wind, such as displaced, creased, detached, or broken components. A conclusion should consider attachment, seal condition, direction, pattern, surrounding evidence, event timing, and other possible causes.
Wind or hail deductible
A deductible that applies to losses caused by specified wind or hail events. It may be a dollar amount or percentage and can differ from the all-other-perils deductible; the declarations and endorsements control.
Wind speed rating
A manufacturer's or tested assembly's published wind classification under specified test and installation conditions. It does not guarantee performance at every building or equal a local design wind speed.
Wind uplift
Pressure that pulls upward on a roof as wind moves around a building. Roof shape, edge zones, height, exposure, deck attachment, fasteners, clips, coverings, and tested assemblies all affect resistance.
Workers' compensation
Insurance or a statutory system that provides defined benefits for job-related employee injuries or illness. Requirements and subscriber status vary by state; it is separate from general liability insurance.
Workmanship warranty
A contractor's written promise covering specified installation work for a defined period and subject to stated terms. It is separate from a manufacturer warranty and should identify coverage, exclusions, notice, transfer, and remedy.

X

XactAnalysis
A Verisk platform used by participating insurers, adjusters, and service providers to send, receive, track, or review claim-related assignments and estimates. Access or appearance in the platform does not establish coverage or price agreement.
Xactimate
Verisk estimating software used to create property-repair estimates from sketches, line items, price lists, notes, and project data. It is a tool; measurements, scope, prices, and coverage still require review.
XactNet
A legacy Xactware data-transfer service name that may appear in older estimating workflows or records. Current products and account configurations should be checked before relying on an old instruction.