Someone suggested using an elastomeric primer to seal our slowly deteriorating LP Smartside siding prior to painting. It was installed prior to purchase and the down edges and some but joints are now swelling. I would like to try to salvage this without re-siding the house. Any advice on stopping more damage would be appreciated. Brand names of products would really help!
There are thick primers that are perfect for this application. Zinsser Triple Thick Peel Stop or equivalent will work well. Generously apply to the edges and butt joints to seal prior to painting. Caulk in or seal up all butt joints. Make sure to apply plenty of high quality exterior paint to these areas to prevent future deterioration.