Causes: - Poor surface preparation - Applying paint too thin - Loss of elasticity ( the wood is not expanding or contracting with humidity and temperature properly) - As the wood swells, stress breaks the bond between layers and checks/flakes the form - Poor paint penetration, especially on flat hard grain patterns which are nonporous - Checking/flaking on unprotected wood is due to delamination Solutions: - Remove all loose paint with a scraper, wire brush or power washer (for larger areas) - Feather sand the edges - Level uneven areas with exterior spackle - Then sand the surface and rinse with a garden hose to remove all dust particles |