How to read a commercial flat roof proposal

Dekoven Roofing

November 13, 2026

A commercial proposal should state which roof areas and details the work covers, how the building stays accessible and what happens if conditions change.

Read the proposal alongside the inspection findings. Confirm which roof sections and details are covered, who handles site access and how any conditions outside the scope will be reported.

Contact Dekoven Roofing to discuss a commercial roof assessment. Include the building address and the name of the person who can arrange access.

Reading the proposal

A flat roof proposal should say what system, what area and what details.

Check

  • System and thickness.
  • Insulation.
  • Drainage.
  • Flashing.
  • Warranty.
  • Exclusions.

Compare

Match scope before price so proposals are comparable.

Reading the details

Look at how the proposal treats edges, parapets and penetrations, since many flat roof failures start there. Check whether tapered insulation is included where drainage is poor.

Also confirm what happens to the old roof. Tear-off, recover and partial replacement lead to very different costs and results.

Ask

How is the existing roof handled? What is assumed about hidden conditions?

Frequently asked questions

What if the proposal is vague?

Ask for revision.

Who warrants it?

Confirm.

How do I compare systems?

Ask for the same scope priced each way.

Related: Request a commercial roof assessment

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Dekoven Roofing

November 13, 2026

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Dekoven Roofing

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Dekoven Roofing

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