--- product_id: 340755395 title: "Under Deck Drainage System -Z/50/12-50' Long Roll, for 12'' Joist Spacing, 30 Mil Thick Black Trough, Create Dry Below Deck Storage" brand: "goberco" price: "85523CFA" currency: XOF in_stock: false reviews_count: 5 url: https://www.desertcart.sn/products/340755395-under-deck-drainage-system-z-50-12-50-long-roll store_origin: SN region: Senegal --- # Deep channel valley for superior water drainage 50' long roll for full coverage 30 mil thick heavy-duty polyethylene Under Deck Drainage System -Z/50/12-50' Long Roll, for 12'' Joist Spacing, 30 Mil Thick Black Trough, Create Dry Below Deck Storage **Brand:** goberco **Price:** 85523CFA **Availability:** ❌ Out of Stock ## Summary > 💧 Keep it dry, keep it sleek — the ultimate under-deck upgrade! ## Quick Answers - **What is this?** Under Deck Drainage System -Z/50/12-50' Long Roll, for 12'' Joist Spacing, 30 Mil Thick Black Trough, Create Dry Below Deck Storage by goberco - **How much does it cost?** 85523CFA with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/340755395-under-deck-drainage-system-z-50-12-50-long-roll) ## Best For - goberco enthusiasts ## Why This Product - Trusted goberco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Installation:** Staple on joists, seal joints, screw downspouts—done in minutes, no pro needed. - • **Versatile Compatibility:** Works seamlessly with treated wood, cedar, or composite decks—upgrade any space. - • **Cost-Effective Durability:** Premium materials at just $2/sq.ft. with 20-year warranty—invest smart, save big. - • **Maximize Under-Deck Space:** Create dry, usable storage below your deck while protecting structure from water and pests. - • **Patent-Protected Innovation:** U.S. patent #9,453,338 ensures unique Z-fold design for leak-proof performance. ## Overview The Under Deck Drainage System Z/50/12 is a 50-foot long, 30 mil thick black polyethylene membrane designed for 12-inch joist spacing. Its patented Z-fold design channels water efficiently, preventing leaks and protecting your deck structure. Easy to install with staple, tape, and downspout, it offers a cost-effective solution to create dry, usable storage space beneath decks, compatible with various wood types and backed by a 20-year warranty. ## Description Z/50/12 - Each roll is 50' long x 13 1/4'' width (for 12'' joist spacing) x 30 mils thick - black astm heavy duty polyethylene - top side black, back side gray or black - Easy to install and affordable: goberco deck membrane + tape + downspout is about $ 2/s.f. - U.S. patent # 9,453,338 z-folds allow this unique membrane to act as flashing + gutter 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 typical gutter downspout). - Compatible with treated wood, cedar or composite wood. - Get extra storage under the deck, protect deck structure, get water, insects (termites, ants...) off the deck. - Available for 5 years, sold thousands of roll across USA and Canada, 20 years warranty (see website for details). Review: As good a system as the other company! Review: Good, heavy duty product! Installation instructions could be better in my opinion. ## Features - On-top of joists installation - keep framing and under deck area dry. - Easy to install - 1. Staple on top of joists 2. Self sealing tape over joints 3. Screw downspouts to water evacuation holes. - Material cost is about $ 2/s.f. (Goberco membrane is about $1.4/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 ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Goberco Building Products | | Part number | 20130003 | | Item Weight | 4.67 Kilograms | | Product Dimensions | 25.4 x 25.4 x 35.56 cm; 4.67 kg | | Item model number | 1725503016 | | Size | 50' long roll-for 12'' joist spacing-30 mil lldpe | | Color | Black | | Batteries Included? | No | | Batteries Required? | No | ## Images ![Under Deck Drainage System -Z/50/12-50' Long Roll, for 12'' Joist Spacing, 30 Mil Thick Black Trough, Create Dry Below Deck Storage - Image 1](https://m.media-amazon.com/images/I/51DgCxpQfIL.jpg) ![Under Deck Drainage System -Z/50/12-50' Long Roll, for 12'' Joist Spacing, 30 Mil Thick Black Trough, Create Dry Below Deck Storage - Image 2](https://m.media-amazon.com/images/I/51rApnaETsL.jpg) ![Under Deck Drainage System -Z/50/12-50' Long Roll, for 12'' Joist Spacing, 30 Mil Thick Black Trough, Create Dry Below Deck Storage - Image 3](https://m.media-amazon.com/images/I/51raTWLy8-L.jpg) ![Under Deck Drainage System -Z/50/12-50' Long Roll, for 12'' Joist Spacing, 30 Mil Thick Black Trough, Create Dry Below Deck Storage - Image 4](https://m.media-amazon.com/images/I/61uJhIgIDAL.jpg) ![Under Deck Drainage System -Z/50/12-50' Long Roll, for 12'' Joist Spacing, 30 Mil Thick Black Trough, Create Dry Below Deck Storage - Image 5](https://m.media-amazon.com/images/I/718jY3iyPWL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ As good a system as the other company! *by G***Y on 25 July 2024* ### ⭐⭐⭐⭐ Good, heavy duty product! Installation instructions could be better in my opinion. *by J***. on 26 December 2019* ### ⭐⭐⭐⭐⭐ Descent product *by T***R on 15 October 2022* ## Frequently Bought Together - Under Deck Drainage System -Z/50/12-50 feet Long Roll, for 12 inches Joist Spacing, 30 Mil Thick Black Trough Top Side, Down Site is White, Create Dry Below Deck Storage - Under Deck Drainage System -Z/50/16-50 feet Long Roll, for 16 inches Joist Spacing, 30 Mil Thick Trough, top Side Black + Down Side White. - E-SDS Joist Tape for Decking,1 5/8" X 50'*10 Roll Butyl Tape Deck Joist Flashing Tape Anticorrosive Waterproof Deck Tape --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/340755395-under-deck-drainage-system-z-50-12-50-long-roll](https://www.desertcart.sn/products/340755395-under-deck-drainage-system-z-50-12-50-long-roll) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-05-11*