Seal A Flat Roof Seam Leak

Identify the location of the leak.

Seal a flat roof seam leak.

Start low soaking the area just above where the leak appears in the house. Applying two coats of elastomeric coating protects the roof from water and also insulates the material preventing loss of heat from inside the building. Firstly measure from the outside wall of the room along the ceiling to the damp spot dripping area. Most flat roofs are very slightly sloped to facilitate runoff so explore from the point of the water s entrance up the.

From inside measure the distance from where the leak is visible to the two nearest walls. Waterproofing protects flat roofs when runoff cannot occur. Use those measurements on the rooftop to create a starting point for your search. Clean and dry the area you wish to apply flex seal.

This can be done by pouring a small amount of water over the area you suspect the hole in your roof is located and checking for the leak underneath. If you want extra protection it is also possible to apply a piece of this liquid rubber seam tape and then put another type of coating on top to ensure it stays on. Here is a video on how to seal a flat roof permanent it does not required a lot of skills just time to let it dry completely hope it beco. 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.

It is imperative to fill the exposed membrane. If you have found issues with the flat roof then you need to repair them prior to applying flat roof sealant over the entire roof. Water cannot slide off flat roofs like sloped roofs but a simple solution exists to resolve this problem. Be sure to check any areas where the roof comes to a juncture or where there are any added items such as exhaust pipes.

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. This is a great product for preventing leaks on a variety of different surfaces and it s suitable for flat roofs trailers mobile homes gutters foundations ponds basements and rv roofs. For example soak the downhill side of a chimney first then each side then the top on both sides. If a leak is difficult to find enlist a helper and go up on the roof with a garden hose.

Isolate areas when you run the hose. Do a small area at a time to really pinpoint the cause of the leak.