A roof estimate is only as accurate as the information behind it. Use this checklist before you order. If you order a roof measurement report or an estimate from us, we take the roof measurements ourselves and you can skip the first section.
Measurements
- Total roof area in square feet or squares (one square is 100 square feet).
- Roof pitch for each slope.
- Linear feet of ridge, hip, valley, eave and rake.
- Waste factor. Ten or fifteen percent is typical, depending on roof complexity.
Existing roof
- Number of layers to remove.
- Current material: three-tab, laminated or architectural shingle, wood shake, slate-style or tile.
- Sheathing condition and whether any needs replacing or renailing.
New roof
- Material and warranty level.
- Impact resistant or fire resistant products, if required.
- Felt weight or synthetic underlayment, and ice and water shield areas.
Flashing and metal
- Drip edge, step flashing, roll flashing and valley metal, in linear feet.
- Metal ridge cap and any ridge or hip shingle upgrade.
- Chimney size: small, medium or large.
Penetrations and vents
- Pipe jacks and their sizes.
- Box vents, exhaust vents, turbines, ridge vent and power attic fans.
- Skylights: size and quantity.
- Satellite dish detach and reset.
Job costs
- Dumpster size.
- Permit costs.
- Extra labor hours, with a note on what they are for.
- Whether to add overhead and profit.
Photos and documents
- Every slope, plus close-ups of damage.
- Any aerial report or adjuster estimate you already have.
- Claim number, date of loss and type of loss for insurance work.
Have it all? Place an order or read about what a roof estimate includes.