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.

How to repair flat leaky roof.

Some roofers also suggest using 6d roofing nails to secure the blister flaps. Using a utility knife make a shallow cut until you can remove material around the spot without damaging the layers underneath it. Cut around the damaged area until the membrane rests flat. Press the membrane flaps to the cement to reseal the cut.

Flat roofs are built up of layers of roofing felt and tar. Make sure to remove all silicone residues. If you take that step be sure to cover the nail heads with tar roof sealant or peel and stick flashing patch. 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. Leaks usually occur at low spots or where the roofing felt has been damaged. A small patch can act as a permanent epdm roof repair for leaks and cracks. In most cases the leak is directly below the damaged spot and the damage to the roofing felt is easy to see.

Apply an epdm primer and when touch dry add self adhesive rubber tape 3 around malleable flashing covering the hole. Sometimes doing that is difficult. This will plug it and will also provide an adhesive for the flaps of the membrane to stick to.