How To Seal Bitumin Roofing On A Parapet Wall

Liquid systems and putties including acrylics solvent based bitumens and water based rubberized acrylic modified bitumens which are used to seal parapet walls small flat roofs roof bolts flashings and ponds.

How to seal bitumin roofing on a parapet wall.

A parapet indicates any low wall along the roof of a building the edge of a balcony the side of a bridge or similar structure. Bituminous sheet products are used to waterproof flat roofs basement walls and to line earth dams and canals. Here is an attempt though maybe not a very good one to make the roof flashing serve also as a through the wall flashing with a tile roof. To install the roof wall flashing above the builder bent the top edge of the flashing into a 90 degree lip about 2 cm in width.

Center it atop the wall so each side extends outward in equal amounts. This new torch on flat roof is leaking because the parapet walls and the coping stones are defective water damage to the ceiling below from the leaking ceil. Roll out bitumen flashing atop the wall from end to end with the self adhesive backing paper facing down. The installer tacked a row of asphalt shingles to the wall caulked their top edge and hoped for the best.

It is the wind pressure that causes the majority of wall leaks not water flowing down the wall. The application of the sealant product itself is easy but accessing the roof is by far the hardest part. On the other hand the roof doesn t know which direction the rain is coming from its function is. Sealing asphalt roof shingles is a challenging job and something that you would be far better off hiring a roofing expert to do for you unless you are completely comfortable and experienced enough to attempt the job yourself.

Don t seal the parapet rain the primary source of water is driven by wind through permeable masonry units mortar joints and cracks in the wall.