We are getting estimates to have our house painted and the wood rot repaired. Most the companies are spraying the siding which in our case is Hardiplank and using a brush on the trim. Which is better for Hardiplank and will last the longest?
As long as they apply two coats on the Hardiplank I have not seen a difference in durabiliy between spraying and brushing. I prefer 1 coat of exterior latex primer and 1 coat of 100% acrylic semi-gloss or satin finish. Be sure to use the premium line from what ever paint company you use.