A realistic roof-replacement timeline

A schedule has real dependencies

A replacement date depends on decisions and conditions that happen before and after installation. Measurement, product selection, permits, supplier confirmation, weather, hidden deck work, inspection, and closeout can each move the schedule.

What to do, in order

1. Complete measurement and product selection. Complete measurement, access review, product and color selection, ventilation planning, and known flashing decisions before finalizing the proposal.
2. Confirm contract, permit path, and material order. Confirm the contract, permit path, material order, delivery location, homeowner preparations, and any funding dependency before setting the work window.
3. Leave room for weather and discovered deck work. Keep weather contingency and an approval method for deck or structural conditions that cannot be known until removal.
4. Finish inspection, invoices, photos, registration, and warranty closeout. Allow time after installation for inspection, corrections if required, invoices, photographs, product registration, warranties, and final reconciliation.

Ask for dependencies, not a perfect date

A useful schedule names what has been completed, what is waiting on another party, and what would cause a change. That is more reliable than a start promise that assumes every permit, delivery, weather, and hidden condition will cooperate.