Roofing Trade Tool

Roofing Quote Calculator & Margin Lock

Protect tear-off and reroof margins with 38% steep-slope workers' comp burden and dumpster disposal overhead.

Interactive Roofing Job Estimate

Loaded Roofer Cost (38% Burden): $41.40/hr
Total Breakeven Cost (Materials + Labor + Dumpster): $8,930.40
Flawed 25% Markup Bid: $11,163.00
True 25% Margin Bid: $11,907.20
Profit Preserved vs Flawed Markup: +$744.20
Open in Full Offline PWA Calculator →

Why 20% Markup Destroys Roofing Profits

Roofing projects involve high material ticket sizes, heavy freight, and massive workers' compensation liabilities. If a full tear-off costs $8,930 in total direct costs and you mark it up 25%, you quote $11,163. In that quote, your actual margin is only 20.0%, meaning you give away $744 in hard cash right from the start.

True Margin Formula: Bid = Total Burdened Cost / (1 - Target Margin %)
Example: $8,930.40 / (1 - 0.25) = $11,907.20

Job Profit Kit calculates the reciprocal divisor formula deterministically so you never sacrifice company profit on volatile material quotes.

Frequently Asked Questions

How does steep-slope labor burden affect roofing quotes?

Because roofers face severe fall hazards, workers' compensation rates in roofing are 3x to 5x higher than general carpentry. Factoring in 38% loaded burden prevents contractors from paying crew liabilities out of their own pockets.

Can I run this on a residential roof without Wi-Fi?

Yes. Job Profit Kit is fully cached in your browser as an offline PWA. It requires zero cloud connectivity or recurring subscription fees.