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.
If there is any peeling — and there usually is somewhere — it's essential to scrape off any loose paint. This doesn't just mean the parts that are already separated from the wood and ready to fall off on their own. Each spot where paint has peeled loose needs to be scraped thoroughly until you can no longer get the sharp corner of a putty knife under any of the surrounding edges of paint. Then, the bare spot needs to be sanded until the paint edges are smooth.
Climate is another factor to consider. Sunlight, wind, rain and salty weather can all wear out exterior paint. Oil-based paint is durable against wind, rain and temperature changes, but sunlight tends to degrade it. Alkyd paint chalks and sheds very thin layers when it begins to wear. Latex paint is the more durable option for very sun-drenched and relatively dry climate areas. Latex paint with high vinyl content should be avoided, however. Acrylic resin is by far the more durable binder for outdoor latex paint. Thornton House Painters
Acquire liability insurance. In the event of accident, injury or property damage, liability insurance will protect you from having your assets seized. Look into a few different providers to compare rates and see what sort of coverage they offer. Good insurance is absolutely critical for small business owners, who stand to lose a lot more should something go wrong. Thornton Home Painting
Because it is next to impossible to find out information about local painting contractors on the Internet, the adage “talk to neighbors” applies here. Some painting contractors display signs on the lawns of houses they are working on, but you find this more with general contractors and siding and replacement windows companies. So, other than the painter’s white panel van out front, you often do not know what is going on inside your neighbors’ houses. Thornton House Painters