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Innovative Z-Folds make this Under-Deck Drainage System Easy to Install and Affordable

Thousands of roll installed in the last 5 years across USA and Canada, 20 years warranty

U.S. patent # 9,453,338 – PCT/CA2015/000250

Goberco - Building Products

Single Membrane Piece Acts as Flashing (90° fold at ledger board/house wall) + Gutter (between each joist) + Funnel (water evacuation at rim joist).

On existing deck you can install the membrane under-joists or between-joists without removing boards ( see installation for details )