Roof Replacement
Ask each bidder to use the same roof measurements and list tear-off, decking, underlayment, flashing, ventilation, disposal, and cleanup. Record product names and quantities. A single total makes it hard to see what one contractor has included and another has left out.
Compare the scope and questions for roof replacement before requesting bids.
Roof Repair
Ask the roofer to identify the entry point, the affected roof area, and any interior or deck damage they can assess. Request photographs and a written repair scope. Sealing the visible stain location is not a substitute for finding where water entered.
Compare the scope and questions for roof repair before requesting bids.
Metal Roofing
Ask for the panel profile, metal specification, finish, fastening system, underlayment, and flashing details in writing. Compare bids for the same assembly. Discuss penetrations, transitions, and how the crew will address expansion and contraction.
Compare the scope and questions for metal roofing before requesting bids.
Cedar Shake Roofing
Ask whether the bid specifies shakes or shingles, the product grade and treatment, and the proposed underlayment, spacing, flashing, and fastening. Request the manufacturer installation instructions and written maintenance requirements.
Compare the scope and questions for cedar shake roofing before requesting bids.
Flat Roof & TPO
Ask the contractor to identify the existing membrane, insulation, deck, drainage routes, and edge details. A low-slope roof proposal should explain how water reaches drains or scuppers and how the new work connects to walls and penetrations.
Compare the scope and questions for flat roof & tpo before requesting bids.
Roofing by area
Find questions to ask about your roof, access, materials, and property requirements.
Pearl District
Shared roofs and access
Hawthorne
Existing layers and roof decking
Sellwood-Moreland
Repair boundaries and drainage
Eastmoreland
Material choices and property checks
Alberta Arts District
Main roofs, additions, and low slopes
Irvington
Historic appearance and roof details
St. Johns
Compare the repair and replacement scope
West Hills
Slope, access, and staging
Lake Oswego
City requirements and private approvals
Beaverton
Confirm the address and roof assembly