1. Consider Mother Nature
Plan ahead when painting. The time of year is key, so understand your local weather patterns. Select a dry time of year when there is little rain and lower humidity. Paint needs time to dry and will not adhere to surfaces that are not dry.
2. Quality Over Price
Better quality paint means you will paint fewer times over the years, and you’ll get better coverage when you do paint. Paint technology has improved dramatically in the past few years, with colors guaranteed to last longer than ever before. You may be tempted to skimp on paint to save money up front with a cheaper brand, but you’re bound to have trouble and eventually pay more in the long run.
3. Sand and Wash
Paint won’t adhere very well to dirty or rough surfaces, so be sure to clean the siding and trim thoroughly, allow to dry, and sand. Be sure to sand (or scrape as needed) any peeling paint to create a solid surface for the paint to adhere.
4. Paint Doesn’t Stick to Rotten Siding
Rotten wood and siding material are nearly worthless to paint, as they will do nothing but to continue to deteriorate. You have a couple of options. Replace the siding or wood trim with new components, or in the case of small areas, use a wood hardener and match with an exterior filler product, such as a wood filler. Be sure to prep and sand either one prior to painting.
5. Use Primer
The rule of thumb has always been to apply a good coat of primer, sand, then apply your color coats. This is still a good rule to follow, but new paint technologies have combined primer and paint into one product, which manufacturers assert will cut down on the number of coats you will have to apply. This newer paint is more expensive, but may be comparable to the purchase of separate primer and paint. Look at reviews of these newer paints, particular from folks that have used it in your area.