Quick answer: A roofing estimate should define the roof assembly being priced, measurement basis, removal work, material specifications, accessories, access and disposal, and the treatment of concealed conditions. Keep verified findings separate from assumptions.

Two proposals labeled “roof replacement” may cover very different work. A useful estimate lets the homeowner identify those differences without needing to infer what is hidden in a lump-sum price. This guide covers scope documentation, not installation or safety instructions.

Identify the actual work boundary

Name the roof sections, buildings or elevations included. Distinguish repairs from replacement and base work from optional areas. Record the measurement source, date and units. If you use a report or drawing, confirm that it corresponds to the correct property and the sections you intend to price.

Photograph visible conditions from safe, authorized positions. Document inspection limits; do not imply that covered decking or inaccessible sections have been examined. Use qualified assessment where needed.

Specify the system rather than only the surface material

Record the proposed covering and relevant components, with specifications appropriate to the project. Name what is included at edges, penetrations, transitions and drainage interfaces. Confirm technical requirements with the qualified roofing professional, manufacturer and applicable authority.

A product family is not a complete customer selection. Identify the selected model or grade and mark color or other choices pending when they have not been confirmed.

Roofing scope review
Scope element	Question to answer
Removal	Which existing materials and verified layers are included?
Replacement assembly	Which products and components are specified?
Interfaces	What work at penetrations, edges and transitions is included?
Access and protection	What conditions affect staging and adjacent property?
Disposal	What removal, hauling and cleanup is priced?
Concealed conditions	What remains unverified and how will findings be reviewed?

Keep measurements separate from order allowances

Record measured roof area and the purchasing allowance separately. Layout, cuts, packaging and the project design can change the material quantity. Do not hide the allowance inside an unlabeled area number.

Check units before entering them into a draft. Where “squares” are used, one roofing square represents 100 square feet, as defined in the Owens Corning Roofer's Guide. Confirm whether each rate is per square, square foot, linear foot or each component.

Explain concealed-condition pricing without promising certainty

“The estimate covers the listed roof sections and assembly. Concealed substrate condition has not been fully inspected. Additional work identified after access will be documented with location, quantity and a proposed price for review before proceeding under the agreed process.”

Adapt the wording to the actual project and agreement. It is a scope note, not a substitute for appropriate contract terms. Avoid treating a broad contingency as proof that all concealed repair is included.

Make the customer's comparison easier

Identify material specifications, removal boundary, included accessories and exclusions in a short summary. If you provide an alternate product, show it separately. A lower total is only comparable when the work and selections are comparable.

SnapDamage can organize job photos and scope notes and draft an editable estimate. It does not replace a roof inspection or determine every required system component. Use the measurement verification guide and bid comparison checklist.

Frequently asked questions

Can an aerial image establish decking condition?

No. It may support visible context or measurement, but concealed conditions require an appropriate assessment.

Should replacement of every accessory be assumed?

State the intended treatment explicitly. Confirm what the project requires rather than allowing a broad title to imply it.

How do I compare two roofing estimates?

Align work areas, assembly specifications, removal, accessories, allowances and exclusions before comparing totals.