Seal A Leaking Flat Roof

This will help the new coating seal where it overlays the old roof coating edges and will reduce the chances of leaks at those locations.

Seal a leaking flat roof.

If you take that step be sure to cover the nail heads with tar roof sealant or peel and stick flashing patch. Step 2 fill a caulking gun with a watertight polyurethane or oil based sealant and hold it at an angle to insert the product directly into the gap. Leaks in wooden roofs are commonly caused by a gap between the panels which move during expansion and contraction. Apply an epdm primer and when touch dry add self adhesive rubber tape 3 around malleable flashing covering the hole.

For a gap of 1 inch or less caulking or sealant is the best method of repair. Some roofers also suggest using 6d roofing nails to secure the blister flaps. The patch should be adhered from the centre over the hole outwards with a firm hard roller. When the membrane is completely dry apply the appropriate roof repair material such as roof cement tar or peel and stick patch.

Do a small area at a time to really pinpoint the cause of the leak. Be sure to check any areas where the roof comes to a juncture or where there are any added items such as exhaust pipes. A small patch can act as a permanent epdm roof repair for leaks and cracks.