So you've got a little leakage problem in your flat-roofed house. To repair a flat roof that is leaking you need to first be able to identify where the leak is coming from. This is the part where you put your keen observation skills to work, looking for imperfections and following water stains like a detective.
1. Sweep the roof to get any dust or dirt away from your work area. The roofing cement you'll be using won't stick if the surface is dirty.
2. Cut out around any cracked or peeling areas with a razor knife and remove each bad section. Make it a uniform shape such as a square or rectangle.
3. Cut another patch of shingle about 2 inches larger all the way around.
4. Slip a putty knife under the edges around the cutout area. Apply roofing cement under the edges.
5. Put a layer of roofing cement down in the entire cutout area with the putty knife.
6. Press the new shingle into the hole. etc.
Epdm l
Flat Roof Diy