A deck gutter system is a drainage system that captures water so it doesn t drip through the elevated deck boards to the area below.
Deck rain and gutter.
Once the area beneath the deck is dry the homeowner can finish the space with utilities gas lines lighting fixtures and more.
After flashing against the house you roll a membrane across the tops of two joists to create a long trough that s pitched to drain at the front of the deck into a gutter and downspout system.
A length of gutter is attached to the structure just below the downspouts to collect water and lead it away from the protected area.
Raintight decks gives a low profile streamlined finish that creates a ceiling below the joists of your deck.
Adjacent rolls of membrane lap at the tops of the joists and are capped with more membrane or peel and stick tape.
Raintight decks have been carefully designed to provide the best system for underdeck protection.
Other rigid rain barrier systems use wide rigid flanged gutters that you install between the deck joists by nailing or stapling through the flanges into the bottoms of the deck joists.