House Painting Advice

Tips For Choosing Interior and Exterior Colors

How to Avoid a Wrinkly, Blistery, Crackly Paint Job on Your Home Siding - part I
Tuesday, 28 September 2010 21:59

Popping blisters, peeling skin, and warped wrinkles covering your home's exterior may be attractive to the Wicked Witch of the West - but the alligator-skin look won't be as attractive to your neighbors and potential home buyers. Foresight is required when painting your home's exterior. Knowing what to do, and what not to do, can help you avoid common painting mistakes that result in a home being more attractive to reptiles than to friendly neighbors.

An “alligatoring” appearance on your siding – a series of cracks and checks in the paint that forms a pattern – can be caused by at least three different reasons. Alligatoring commonly occurs when a top coat is applied over an undercoat before the undercoat has fully dried. You'll get the same results if you paint over varnish or grease, or if you use too much oil in a thinner. It is recommended by Chicago Siding company to clean your siding well before you paint, and don't sacrifice drying time to get the job done quicker.

Simple "checking" - small cracks in the surface of the paint, but not necessarily down to the wood – also occurs when the undercoat is insufficiently dried. Checking will also occur due to a poor quality paint. "Cracking" paint is paint that that has cracked off down to the bare wood. The paint is "scaling" when it falls off. Cracking can be a result of painting over a damp undercoat or using a poor quality paint. It can also be caused by not mixing the paint properly before applying it.

Blistering paint – paint bubbles that pop and expose bare wood - is usually a sign of moisture problems in wood siding. If drop-sized bubbles form while you are painting (referred to as “crawling”), the siding might be too damp or cold, there may be a greasy film, or the paint has not been mixed properly.

Sagging and running paint can be caused by a greasy film or from painting over a glossy surface, but it's often caused by slopping on too much paint and improper brushing techniques. An over-thick coat of paint, or painting while it's wet and cold outside, will result in a tacky slow-drying paint job. Slapping on too much paint is also what creates a wrinkled-looking paint job.

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