Roof Leak Between Plywood

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.

Roof leak between plywood.

Off the roof many other connections depend of flashings for water leak prevention. Common areas of roof leaks during rain. Make the final repair as soon as weather permits. Moisture causes wood to rot and rotten wood absorbs water even more readily than fresh wood.

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. To find the source of a roof leak. I went in the attic to see it and took a picture there is a black area about 4ftx4ft maybe less. Rotted plywood can cause a number of issues.

Trowel the roofing tar into the leak on the underside of the roof deck using a putty knife. Look in the attic with a flashlight for evidence like water stains trhen trace them up the roof and rafters to the entry point. Push the shingle or plywood into the tar and trowel more roofing tar around the edges of the patch. But what you can t see might be devastating.

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. Isolate areas when you run the hose. Skylight leaks in heavy rain are a common source for roof leaks. For example soak the downhill side of a chimney first then each side then the top on both sides.

Im pretty handy but have never done roofs. Gable roof leak between plywood pics im just looking for a little advice i have a leak in my roof. If it hasn t rained or snowed lately these dark areas may not be easy to spot. Roof leaks are confusing to diagnose.

If the leak isn t obvious have a helper watch in the attic while you get on the roof with a garden hose. If you notice areas of black mold however it s likely that this is where your roof has a leak. If a leak is difficult to find enlist a helper and go up on the roof with a garden hose. If your roof leaks when it rains hard you may have an issue in any one of the following areas.

Start low soaking the area just above where the leak appears in the house. Horizontal joints between stacked sheets of plywood siding use something called z flashing to keep water out. Check for any signs of light coming through the plywood to find any holes. Also see if there are any areas on the underside that are darker than others.