You may be wondering how to tell if you’re applying enough paint. Unfortunately, there’s no exact formula. In general, you’ll have better success applying two thin coats than struggling to cover the primer with one thick coat of paint. Thin coats dry more thoroughly and don’t cause problems like runs, sags and paint buildup that are associated with heavy layers of paint. Your goal is to get enough paint on the surface to allow the brush to glide smoothly, but not leave so much that it forms runs or sags.
To calculate the cost of an interior paint job that you do yourself, measure the square footage of the interior space you need to paint. Consider whether you will need primer or multiple coats to help with your color transition. If you’re just adding another layer of the same color of paint you used a few years back, you may be able to use a single coat and skip the primer.

For applying paint to large areas of shingles, stucco or brick, buy a roller setup consisting of a heavy-duty roller cage (this is the handle part); top-quality 1/2-in. nap roller covers, one for each color (you’ll wash and reuse them); and a roller screen (Photo 4). Standard 9-in. rollers are good for large, flat areas. Buy the 7-in. size for rolling siding and other narrow areas if your house has them. You’ll also need a few clean 1-gallon paint cans and a clean 5-gallon bucket. Having a boom box on hand could just save your mind while painting a house. Louisville Home Painting

Turn the brush to paint the adjacent edge of the same inside corner and repeat the process. Reload the brush and remove excess paint from the bristles by laying on the paint close to, but not against, the edge you’re cutting in. Without reloading the brush, go back and paint close to the edge. Fan the bristles slightly and use a slow, steady stroke while concentrating on the line you’re painting. Complete the exterior house painting job by smoothing the paint in the center of the panel with long, sweeping strokes, keeping well away from the completed edge. House Painting Louisville Colorado