Flat Roof Felt Bubbling

Permanent flat roof repair this can either be a patch of torched on roofing felt or a layer on top of your existing felt if it will take it.

Flat roof felt bubbling.

Vapour from contact bonding adhesive. Moisture has already penetrated under the felt. Water buildup combined with heat from the sun can cause shingles to. Access the roof using an extension ladder.

Whilst bubbles or blisters on a one piece epdm roof can be unsightly they will not cause the rubber membrane to fail. The result is a series of pot marks which allow moisture to ingress and cause the covering to fail the following winter. Small bubbles blisters and cracks are a common problems with felted flat roofs. Sweep away any loose gravel aggregate from the areas where repairs are needed.

If they are spotted early there is no reason why they need cause serious damage and no reason for you to replace all of the felting. During a warm summer flat roofs become illegal terraces and their asphalt or felt coverings are subjected to point loads just when they are most vulnerable. A roof blister is a raised area where there is a loss of adhesion of the roof. These bubbles of trapped air moisture can be caused by a variety of issues which are all avoidable if the roof design is correct and the membrane is correctly installed.

Flat roofs often require more maintenance than pitched roofs because the water and debris don t roll off the roof as easily. When the roof has warmed in the sun the felt swells in the heat causing blistering on the surface. Diy temporary flat roof repair for felt roofs this is often a paint on fix from a tin like the repair videos at the top of the page. This area can fill up with air or water to form a blister which looks like a bubble on your roof.

I show you some of the problems with asphalt flat roofs and felt flat roofs these old roofs have blisters forming in them sometimes called bubbles because of water vapour getting trapped under.