Roof Leak Between Plywood

Moisture causes wood to rot and rotten wood absorbs water even more readily than fresh wood.

Roof leak between plywood.

Also see if there are any areas on the underside that are darker than others. Push the shingle or plywood into the tar and trowel more roofing tar around the edges of the patch. Gable roof leak between plywood pics im just looking for a little advice i have a leak in my roof. Rotted plywood cannot support the weight of a roof the way healthy wood can nor can it safely grip the nails put into the roof and keep them held firm.

And all the rest of the roof is fine. If your roof leaks when it rains hard you may have an issue in any one of the following areas. Isolate areas when you run the hose. Rotted plywood can cause a number of issues.

Check for any signs of light coming through the plywood to find any holes. If the leak isn t obvious have a helper watch in the attic while you get on the roof with a garden hose. To find the source of a roof leak. Start low soaking the area just above where the leak appears in the house.

For example soak the downhill side of a chimney first then each side then the top on both sides. If it hasn t rained or snowed lately these dark areas may not be easy to spot. Repairing a roof leak from the inside is a temporary fix only. Unless the roof is leaking the line you see on the roof is an aesthetic problem but the cupped plywood is putting an added strain on the shingles either side of the visible line.

Skylight leaks in heavy rain are a common source for roof leaks. Im pretty handy but have never done roofs. Walk carefully on the ceiling joists in the attic or use a sheet of plywood to walk on so you will not accidentally put a hole in the ceiling panel. Trowel the roofing tar into the leak on the underside of the roof deck using a putty knife.

Horizontal joints between stacked sheets of plywood siding use something called z flashing to keep water out. I went in the attic to see it and took a picture there is a black area about 4ftx4ft maybe less. Look in the attic with a flashlight for evidence like water stains trhen trace them up the roof and rafters to the entry point. Make the final repair as soon as weather permits.

Roof leaks are confusing to diagnose. If a leak is difficult to find enlist a helper and go up on the roof with a garden hose. Common areas of roof leaks during rain. If you notice areas of black mold however it s likely that this is where your roof has a leak.