Deck and Post Protection

When applied to the top of deck joists, Deck Flash Barrier creates a waterproof membrane that prevents wood rot and decay caused by the accumulation of water under the decking boards. Deck Flash Barrier’s unique asphalt mastic adhesive self-seals around screws and nails, blocking a primary pathway for water infiltration into deck joists. By blocking moisture and preventing wood rot, Deck Flash Barrier maximizes the life of your new deck.