Roof Paint Blistering

Another way to minimize blistering is to utilize a cool roof coating such as ge enduris coating in white.

Roof paint blistering.

In summary blistering and bubbling are common coating problems that occur for several different reasons. 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. Using a white colored coating will help to keep roof temperatures down.

Moisture in the substrate e g. Recoating tinted roofs coated with a dark color or asphalt emulsion on a hot day also can result in flash drying and blistering. If moisture level in timber is over 15. Whether you have a.

This will reduce water vapor development decreasing the incidence and severity of blistering. While this article presents and discusses the osmotic mechanisms that produce blisters bubbles have several causes. What causes a blistering roof. 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.

The usual causes of blistering include. Remove the membrane from the blistered area down to the existing substrate. Inspect the membrane for possible. The number one rule for preventing commercial roof blisters is to use dry materials in dry settings.

There are differing opinions as to the damage that can result from blisters and bubbles. Poor substrate preparation to eliminate unsound aged paint films. Coating roofs too soon after heavy rains or washing leaves roofs vulnerable to blistering as does coating roofs with frost or condensation present. Poor attic ventilation is another reason blisters will appear.

Coating roofs just before it rains is poor timing. Another blister prevention tip is to make sure your materials have firm contact between them for. Blisters often occur when excessive heat damages the roofing materials.