Weather Effects on Painting Applications

October 1, 2008

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Exterior Painting Concerns

Weather can dramatically impact your exterior painting job. Heat, sunlight, rain and wind all create conditions that require extra care during the application phase to produce a professional quality coating. 

Exterior Painting Issues: Heat and Sunlight

Excessive heat or sunlight can cause a fresh coat of paint to develop blisters known as temperature bubbles. These blisters can pop up relatively quickly following application of the exterior paint. Thick coats of paint are more prone to developing temperature bubbles. Dark paints are also more susceptible to the phenomenon. The remedy for heat blisters is simple. A scraper is used to smooth off the affected area. Once smoothed over the damage to the coat is repaired. 

When a professional painting company does an exterior painting project in the summer heat, they constantly check for temperature bubbles in the coat and take care of the problem as they form, so the blisters have no chance of ruining the coat. 

Another sun related exterior painting problem is chalking. This occurs when old stains, paints, or other coatings atomize and dry over time due to the sun’s UV radiation. Chalking is only the first part of the problem. The real damage only becomes visible when wind, water, ice, or snow absorbs or washes away the chalk, leaving a patchy or uneven mark on the surface.

Exterior Painting Issues: Moisture

Of course, the sun is not the only harmful element that takes its toll on your exterior painting job. Rain, dew, condensation, snow, and ice can all create blisters, stains and peeling. Moisture blisters are typically deeper than a heat blister and can reach all the way down to the base of the coat. These can be slightly harder to repair, which makes prompt fixes a must. Moisture blisters are also somewhat harder to repair because the source of the moisture may be difficult to pinpoint and eliminate. 

Of course, other weather phenomena can also radically impact your exterior painting attempts. Winds whipping particle grains, pollen, or other debris can wreak havoc on your paint job. Wind damage over time can also erode the long term quality of a finish.

Getting a high quality finished product requires a painting company with extensive experience dealing with the effects of weathering. Please contact a professional painting contractor for more information about painting weathering effects and suggestions for dealing with environmental damage to exterior painting projects.

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