# Shingle roofs

> Replacing and repairing asphalt shingle roofs. Ask with your Sheet attached: homeowners who’ve done it and verified pros answer, and anyone can read it.

## Before you ask

The roof’s size and pitch, the layers now, and the ventilation.

- **Attach your Sheet** so people see your sizes and the math.
- **Your town is enough.** Never your address; check photos for house numbers and plates.
- **Is it safe?** A safety question here goes to pros verified in roofing, unless you pick another trade. Only they can call it safe or unsafe.

## Shingle roof

40′ × 30′ house, 6/12 roof: 1503 sq ft of roof is 50 bundles of shingles (architectural, 10% waste), with the underlayment, ice barrier, drip edge and nails.

What people get wrong:

- **High or crooked nails.** Nails above or below the nail line, or overdriven, let shingles blow off and void the wind warranty.
- **Opening more than you can dry in.** A storm on bare deck soaks the ceilings below.
- **Old step flashing, no kick-out.** Roof-to-wall leaks rot the wall behind the siding for years before they show.

[The worked example, every line's math and the code notes](https://studsheet.com/sheets/roofing) · [Your own sizes in the app](https://app.studsheet.com/p/roofing)

## More in Roof & siding

- [Roof leaks](https://app.studsheet.com/community?tab=talk&room=roof-leaks): Finding and fixing leaks, flashing and ice dams
- [Flat and low-slope roofs](https://app.studsheet.com/community?tab=talk&room=flat-roofs): EPDM, TPO and modified bitumen roofs
- [Siding](https://studsheet.com/forum/siding): Vinyl, fiber cement and wood siding
- [Gutters and downspouts](https://studsheet.com/forum/gutters): Sizing, hanging and fixing gutters
- [Windows](https://app.studsheet.com/community?tab=talk&room=windows): Replacing windows: inserts, full frame and flashing
- [Exterior doors](https://app.studsheet.com/community?tab=talk&room=exterior-doors): Entry, patio and storm doors
- [Garage doors](https://app.studsheet.com/community?tab=talk&room=garage-doors): Garage doors, openers and springs
- [Chimneys and fireplaces](https://app.studsheet.com/community?tab=talk&room=chimneys): Chimney leaks, crowns, liners and fireplaces
- [Stucco](https://app.studsheet.com/community?tab=talk&room=stucco): Stucco cracks, patches and new walls
- [Every group](https://studsheet.com/forum#every-group)

## How the community works

- **Open to read** from anywhere, no account needed.
- **Sign in with your email** to ask, answer and vote. No password.
- **The best answers rise:** votes, “worked for me” and a solved mark. Verified pros carry a badge.

Questions? Write to [support@studsheet.com](mailto:support@studsheet.com).