Flat Roof Felt Bubbling

Flat roof blisterts bubbles occur as the direct result of hot air that rises from the crawl space between the top floor ceiling and the roof deck of the home.

Flat roof felt bubbling.

Sweep away any loose gravel aggregate from the areas where repairs are needed. This area can fill up with air or water to form a blister which looks like a bubble on your roof. There are four main reasons why blisters bubbles occur on your flat roof. 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.

A roof blister is a raised area where there is a loss of adhesion of the roof. Water buildup combined with heat from the sun can cause shingles to. Flat roofs often require more maintenance than pitched roofs because the water and debris don t roll off the roof as easily. Walk the roof and locate any raised ridges or half bulges in the roofing.

The roofer did not completely cover every square inch of the roof deck with adhesive as he re roofed.