Chalking is identified by the fine chalky powder that forms on the surface of a paint film. Although some chalking is a normal way in which paints self-clean when exposed to the sun and rain, excessive chalking can indicate paint failure. In dry arid climates where there is little rain, chalking can become excessive. Chalking is actually the paint pigment released by the paint binders that have been broken down by exposure to the weather. Chalking is especially common with very light-colored flat paints, especially lesser quality oil-based paints containing high levels of pigment extenders. When chalking gets severe, it may run off and stain the surrounding construction.
Similar to exterior mold, mold is more likely to emerge in warm and humid areas. That being said, rooms like bathrooms and basements are more prone to mold. To preemptively prevent mold, use paints that are mold resistant. Should you find mold on a wall in your home, you can clean it with a simple solution of one part bleach to four parts water. If the area is large, you may want to leave the cleaning to a professional. Broomfield Home Painting
Our second recommendation is to have quality prep work and 2 coats of paint done. While it will cost 30-40% more upfront, you will have to pay that one time, and it will last 10 years or more. If you do not do these two items, your paint job may last 3-4 years, and you will have to pay even more second time around, as by then, your wood siding will have even more rot, so the prep work and rot repair will cost even more, on the second round. Broomfield Home Painting
If the exterior of your home is unpainted or has been scraped and sanded, you will want to lay down a coat of primer. Make sure that the primer you’re using is right for the surface you’re painting. While most surfaces can be treated with acrylic primer, some surfaces, like cedar and redwood, require oil-based primers. The oil stops the wood tannins from bleeding through the topcoat. Broomfield House Painting