Apply roofing cement peel back the layers of the membrane you cut and apply roofing cement to the leak and to the entire section of the roof underneath the membranes you cut away.
How to repair leaking roof flat.
Flat roofs are built up of layers of roofing felt and tar.
In most cases the leak is directly below the damaged spot and the damage to the roofing felt is easy to see.
Determine how far the leak is from the 2 closest walls.
Most flat roofs are very slightly sloped to facilitate runoff so explore from the point of the water s entrance up the.
In this video we will be taking a look at a flat roof repair that will cover large areas or the whole roof if you need it to.
Start low soaking the area just above where the leak appears in the house.
Firstly measure from the outside wall of the room along the ceiling to the damp spot dripping area.
How to repair a flat roof method 1 of 4.
Finding damaged areas on a.
If there s still water pooled in the leak area mop it up or soak.
For example soak the downhill side of a chimney first then each side then the top on both sides.
Next it s time to.
Isolate areas when you run the hose.
If this technique is not possible below are other ways to detect a leak on a flat roof and remember to clearly mark the area of the leak when you find it.
Slice open blistered spots with a utility knife.
If a leak is difficult to find enlist a helper and go up on the roof with a garden hose.
Press the membrane flaps to the cement to reseal the cut.
This will plug it and will also provide an adhesive for the flaps of the membrane to stick to.
Leaks usually occur at low spots or where the roofing felt has been damaged.
Sealing small cracks and holes.