Deck Joist Water Protection

There are a number of shield barrier products available to wrap your pressure-treated deck framing materials to prevent water damage and hardware corrosion. Most of these products are sold as rolls of self-adhesive peel-and-stick flashing tape. Some builders install this material over the tops of joists for extra insurance against rot caused by water. Other builders use this material as a barrier between ACQ pressure-treated wood and hardware to prevent corrosion.