Roof Safety: When to DIY and When Getting on a Roof Will Kill You
The pitch, height, and weather thresholds that separate 'weekend project' from 'call a pro' — and the fall-arrest gear that turns a 3/12 pitch into a Saturday task.
Falls from roofs kill more DIYers than any other home task. The Consumer Product Safety Commission logs 500,000 ladder injuries a year. Almost all are preventable with three simple rules.
The DIY line
Pitch ≤ 6/12 (rise/run), single-story, dry, wind under 15 mph, temperature 45–85°F. Anything outside those bounds — hire it out.
Required gear if you go up
Roof-rated harness ($60), ridge anchor ($15), 25-ft lanyard ($40), soft-sole shoes. Total: under $150. It has saved thousands of lives; skipping it has ended thousands.
The tasks worth doing yourself
Ground-level visual inspection with binoculars. Gutter cleaning from the top of a ladder (not the roof). Pipe-boot replacement on a low-pitch, single-story. Everything else — hire a pro.
Frequently Asked Questions
- Is walking a wet roof really that dangerous?
- Yes. Asphalt shingles lose 80% of their friction wet. Even a 4/12 pitch becomes a slide.
- Do I need a permit for DIY roof work?
- For minor repairs, usually no. For any decking or full-section work, yes — and the permit inspection catches life-safety issues.
Add years to your roof — before you spend a dollar on replacement
Estimate how much life you have left, price small repairs, and see whether prevention beats replacement in your situation.