This is the best type of deck waterproofing. It is a clear water-based sealer that penetrates right down into the wood fibers to provide All Inspection Reports are E3 Certified, eliminating the risk of insurance carriers and mortgage underwriting rejecting the inspection report or worse, having local building departments deamanding repairs that are not necessary. Requires inspectio... https://www.deckinspectors.com/best-types-of-deck-sealer/