Feature

●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

Description

Z/50/16 - Each roll is 50 long x 17 1/4 width (for 16 joist spacing) x 30 mils thick - black astm heavy duty polyethylene - Easy to install and affordable: goberco deck membrane + 4 tape + regular downspout is between 1.5 - 2$/s.f. - U.S. patent # 9,453,338 z-folds allow this unique membrane to act as flashing + gutter/channel between joists + funnel meaning less risk of leaks at ledger board and rim joist. - Save time and money: no need of extra flashing and funnel (simply use regular gutter downspout). - Compatible with treated wood, cedar or composite decking - Get extra storage under the deck, protect deck structure, get water, insects (termites, ants...) off the deck. - Available for 6 years, sold thousands of roll across USA and Canada, 20 years **(see website for details).