• On-top of joists installation - Keep framing and under deck area dry - Heavy Duty 30 mil thick black lldpe
• Easy to install - 1. Staple on top of joists 2. Self sealing tape over joints 3. Screw downspouts to water evacuation holes.
• Material cost under $ 2/s.f. (Goberco trough is about $1.2/s.f., self sealing joist tape is about $0.4/s.f. , regular downspout + plastic gutter + roofing screws are low cost).
• Save Time / Reduce Leaks - Fold against house wall for flashing (reduce leaks at ledger board) - Deep channel valley between joists - Regular downspout redirect water flow into a gutter (prevent water dripping / no special downspout needed). U.S. patent # 9,453,338

Shipping Note: Shipping to Alaska, Hawaii, P.O. Boxes, and APO addresses is not available for this item

Warranty: 90 Day Woot Limited Warranty