How To Repair Flat Leaky Roof

Using a utility knife make a shallow cut until you can remove material around the spot without damaging the layers underneath it.

How to repair flat leaky roof. How to repair leaky flashing on a roof remove all old caulking and tar take laquer thinners and a rag and hard rub the surfaces clean. Press the membrane flaps to the cement to reseal the cut. Apply an epdm primer and when touch dry add self adhesive rubber tape 3 around malleable flashing covering the hole. A small patch can act as a permanent epdm roof repair for leaks and cracks.

Leaks usually occur at low spots or where the roofing felt has been damaged. The patch should be adhered from the centre over the hole outwards with a firm hard roller. 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. This will plug it and will also provide an adhesive for the flaps of the membrane to stick to.

When the membrane is completely dry apply the appropriate roof repair material such as roof cement tar or peel and stick patch. In most cases the leak is directly below the damaged spot and the damage to the roofing felt is easy to see. Sometimes doing that is difficult. If there s still water pooled in the leak area mop it up or soak.

If you take that step be sure to cover the nail heads with tar roof sealant or peel and stick flashing patch. Make sure to remove all silicone residues. Cut around the damaged area until the membrane rests flat.