Roof Paint Blistering

This will reduce water vapor development decreasing the incidence and severity of blistering.

Roof paint blistering.

Another way to minimize blistering is to utilize a cool roof coating such as ge enduris coating in white. Coating roofs too soon after heavy rains or washing leaves roofs vulnerable to blistering as does coating roofs with frost or condensation present. Coating roofs just before it rains is poor timing. Dark colour which absorb a lot of heat applied over light colours will force the moisture air vapour to the.

If it is determined that blister removal is required the following procedure should be followed. When you have no shade to block direct sunlight to a roof small blisters can form. Inspect the membrane for possible. Remove the membrane from the blistered area down to the existing substrate.

The number one rule for preventing commercial roof blisters is to use dry materials in dry settings. The type of paint blemish you describe also known as blistering is a result of the paint losing its adhesion to the base coat of paint or substrate the underlying surface such as drywall. Another blister prevention tip is to make sure your materials have firm contact between them for. Whether you have a.

Using a white colored coating will help to keep roof temperatures down. What causes a blistering roof. There are differing opinions as to the damage that can result from blisters and bubbles. Recoating tinted roofs coated with a dark color or asphalt emulsion on a hot day also can result in flash drying and blistering.

In summary blistering and bubbling are common coating problems that occur for several different reasons. Blisters often occur when excessive heat damages the roofing materials. Poor attic ventilation is another reason blisters will appear. How to prevent roof blisters keep dry.

While this article presents and discusses the osmotic mechanisms that produce blisters bubbles have several causes. Poor substrate preparation to eliminate unsound aged paint films. If water infiltration is suspected open the membrane and inspect the insulation.