---
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: "₪191"
currency: ILS
in_stock: false
reviews_count: 5
url: https://www.desertcart.co.il/products/340755395-under-deck-drainage-system-z-50-12-50-long-roll
store_origin: IL
region: Israel
---

# 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:** ₪191
**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?** ₪191 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/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

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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-02-04*