Asphalt shingle roofing in Washington

Choose an asphalt shingle system

The planning model includes 3-tab and architectural asphalt shingle references. Use them to prepare, then confirm the roof area, selected product, and installation assumptions in a written proposal. Tile and green-roof assemblies need a separate project quote.

The right shingle depends on the look you want, the existing roof, and the full installation plan. Compare product names, accessory details, and included work alongside the estimate. The designer-versus-architectural guide explains how to compare named product lines.

Specify more than the shingle

A shingle color is only one decision. A complete proposal names the product and accessories, underlayment and flashing approach, valley and edge details, and any ventilation work. Use the same roof area and existing-layer assumptions across bids so each provider is describing a comparable job.

The proposal should also explain how damage found after removal will be documented and approved, who handles disposal and property protection, and what completion records you receive. These details make it easier to compare the whole installation instead of a headline total.

• Exact shingle line and accessory products.
• Removal, disposal, and any overlay assumption.
• Flashing, valleys, penetrations, and ventilation.
• Deck repair approval, cleanup, and written terms.

Fit the proposal to your roof

Share the current roof type if known, when leaks appeared, where water shows indoors, and any visible past repair. Note access limits, additions, skylights, chimneys, and places where runoff or debris collects. Those facts help the provider decide what needs an on-site review.

If you are weighing a local repair against full replacement, request a written explanation of the evidence for each option and what each scope leaves in place. The repair-or-replacement guide helps organize that comparison around the condition and the work you need.

Compare asphalt proposals

For an asphalt shingle proposal, share the city, roof area if available, material preference, approximate age, and whether you want repair or replacement considered. That brief helps focus the comparison on product, removal, installation, and repair details.

Check each contractor record through Washington L&I. Compare product, removal, installation details, exclusions, change approval, and workmanship terms before choosing.