Flat Garage Roof Repair in Pittsburgh, PA
Flat-roofed garages are everywhere in Pittsburgh: block garages off alleys in the city, attached garages on post-war houses in the South Hills and eastern suburbs, and garages with a deck or patio on top. They tend to get attention only when the car gets wet. By then the problem is often more than a seam. Water sitting on a flat garage roof for years softens the decking and bows the rafters, and each layer of roll roofing laid over the last one makes it worse. A small leak at the wall can be repaired. A sagging, layered roof gets torn off, the deck rebuilt and re-sloped toward the gutter, and a new EPDM or modified bitumen roof installed.
What's included
- Leak repair at walls, edges and seams
- Tear-off of old layers
- Sagging or rotted decking rebuilt
- Slope added toward the gutter
- New EPDM or modified bitumen
- Flashing where an attached garage meets the house
- Gutter and downspout reset
- Garage-top deck protection options
- Photos of the deck condition
Sound like your roof?
- Water dripping onto the car or workbench
- The garage ceiling or roof sags in the middle
- Water pools on the roof after every rain
- Moss or plants growing on the roof
- Leaks where an attached garage meets the house
Leaking right now? Protect the inside first
Move belongings away from the drip, shut off power to any wet light fixture, and stay off the roof in a storm or on ice. Then request service: an active leak can usually be dried in until the permanent repair.
Garage Roof Repair — FAQs
If the decking is solid and it is a single layer, a repair is usually worth it. If it sags or has several layers, replacing it costs less over time.
Years of ponding water and old leaks soften the decking and bow the rafters. That has to be rebuilt, not covered. See ponding.
Yes, with a membrane rated for traffic or a protected deck system, and framing that can carry the load.
Repairs typically $300–$1,800; replacements are priced per job. Try the calculator.