Free roofing tool

Roofing labor hour calculator

Estimate crew days for a re-roof by area, crew size, and pitch.

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For roofing pros: enter the roof area, your crew size, and the pitch to estimate labor-hours and how many days the job should take.

Estimated crew time
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A planning estimate — tear-off layers, complexity, and weather all shift real hours.

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Estimating roofing labor

A useful planning rule is about 2 labor-hours per square for tear-off and re-shingle on a walkable roof, rising with pitch as staging and safety slow the crew. Divide total labor-hours by your crew size for crew-hours, then by 8 for days. Multiple tear-off layers, complex roofs, and heat all add time — pad accordingly.

Cost ranges reflect 2026 U.S. installed prices (BLS producer/labor data, Remodeling Cost vs. Value, and manufacturer pricing). Your real price depends on your roof, region, and pro — see the full cost guide.

FAQ

Roofing Labor Hour Calculator questions

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A typical single-story asphalt re-roof takes 1–2 days for a solid crew. Larger, steeper, or complex roofs — or multiple tear-off layers — take longer.
Roughly 2 labor-hours per square for tear-off and install on a walkable roof, increasing on steep pitches that need staging and fall protection.
Steeper roofs slow everything — footing, material handling, and safety setup — so a 9/12+ roof can take 50–60% more time than a walkable one of the same size.
Number of tear-off layers, valleys and dormers, decking repairs, chimney and skylight flashing, access, crew experience, and weather all move real labor up or down.

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