Roof measurement in Seattle, WA
Your first roof estimate before you climb — roof area, pitch and squares for any Seattle address, measured from aerial LiDAR.
Preliminary measurement from public aerial LiDAR · U.S. addresses · No sign-up
Seattle roofs at a glance
Footprint statistics: residential-size buildings (600–6,000 sq ft) within ~2 km of the Seattle centre point in our building database. Roof area assumes a 6/12 pitch for illustration — your roof is measured from its own LiDAR.
Roofing material costs for a typical Seattle roof
Material-only prices for a 1,700 sq ft roof, adjusted to Washington’s price level (104 vs. U.S. 100) and including a typical waste allowance. Labor, tear-off, disposal and tax are extra.
| Material | Per square (WA) | Waste | Typical roof, material only | Lifespan |
|---|---|---|---|---|
| Architectural shingles | $115–$177 | 10% | $2,150–$3,300 | 25–30 yrs |
| 3-tab shingles | $89–$146 | 10% | $1,650–$2,750 | 15–20 yrs |
| Impact-resistant shingles (Class 4) | $136–$219 | 10% | $2,550–$4,100 | 30–40 yrs |
| Standing seam metal (steel) | $261–$470 | 14% | $5,050–$9,100 | 40–70 yrs |
| Stone-coated steel | $365–$678 | 13% | $7,000–$13,050 | 40–70 yrs |
| Metal shingles | $313–$626 | 12% | $5,950–$11,900 | 40–60 yrs |
| Concrete tile | $313–$731 | 15% | $6,100–$14,300 | 40–50 yrs |
| Clay tile | $522–$1,252 | 15% | $10,200–$24,500 | 50–100 yrs |
| TPO membrane | $157–$313 | 10% | $2,950–$5,850 | 20–30 yrs |
Planning prices as of 2026-10; not a supplier quote. Measure the actual address above for your roof’s own area and pitch. How we price materials →
Roof measurement FAQ — Seattle
How big is a typical roof in Seattle?
The median home footprint we map near central Seattle is about 1,500 sq ft (middle half: 1,235–1,978 sq ft). At a common 6/12 pitch that is roughly 1,700 sq ft of roof surface, or 17 squares before waste.
What LiDAR data covers Seattle?
Roofs in Seattle are measured from the USGS 3D Elevation Program (3DEP), 2021 survey (dataset WA_KingCo_1_2021). LiDAR is a snapshot from the flight date — newer construction may not be visible yet.
How much do roofing materials cost in Washington?
Material prices in Washington run about 4% above the U.S. average (BEA Regional Price Parities, goods). For the typical Seattle roof, architectural shingles come to roughly $2,150–$3,300 in material only, before labor and tear-off.
Can I measure a roof in Seattle without climbing it?
Yes — type the address above for a free preliminary measurement. For a full 3D report with every facet, ridge, hip and valley, use the RoofTap iPhone app. Always verify on site before ordering.
Full 3D roof reports in Seattle
Every facet, ridge, hip and valley, material quote and a branded PDF — in the RoofTap iPhone app.
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