If a leak is difficult to find enlist a helper and go up on the roof with a garden hose.
Roof leak between plywood.
Trowel the roofing tar into the leak on the underside of the roof deck using a putty knife.
Make the final repair as soon as weather permits.
Off the roof many other connections depend of flashings for water leak prevention.
Slow roof leaks can be deceptive because what you see might seem minor.
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.
For example soak the downhill side of a chimney first then each side then the top on both sides.
Roof leaks are confusing to diagnose.
Look in the attic with a flashlight for evidence like water stains trhen trace them up the roof and rafters to the entry point.
Horizontal joints between stacked sheets of plywood siding use something called z flashing to keep water out.
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.
Isolate areas when you run the hose.
Check for any signs of light coming through the plywood to find any holes.
But what you can t see might be devastating.
And all the rest of the roof is fine.
Start low soaking the area just above where the leak appears in the house.
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.
If you notice areas of black mold however it s likely that this is where your roof has a leak.
Common areas of roof leaks during rain.
I went in the attic to see it and took a picture there is a black area about 4ftx4ft maybe less.
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.
If your roof leaks when it rains hard you may have an issue in any one of the following areas.
Moisture causes wood to rot and rotten wood absorbs water even more readily than fresh wood.
Rotted plywood can cause a number of issues.
If the leak isn t obvious have a helper watch in the attic while you get on the roof with a garden hose.
Repairing a roof leak from the inside is a temporary fix only.
Gable roof leak between plywood pics im just looking for a little advice i have a leak in my roof.
