---
product_id: 28550380
title: "Prosoco Cat 5 Air and Water-Resistive Barrier for Rain Screen Construction, 5 Gallon"
brand: "prosoco"
price: "€ 1743.54"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/28550380-prosoco-cat-5-air-and-water-resistive-barrier-for-rain
store_origin: NL
region: Netherlands
---

# Hurricane-Proof Waterproof Air Barrier Prosoco Cat 5 Air and Water-Resistive Barrier for Rain Screen Construction, 5 Gallon

**Brand:** prosoco
**Price:** € 1743.54
**Availability:** ✅ In Stock

## Summary

> 🏗️ Build Smart, Stay Dry!

## Quick Answers

- **What is this?** Prosoco Cat 5 Air and Water-Resistive Barrier for Rain Screen Construction, 5 Gallon by prosoco
- **How much does it cost?** € 1743.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/28550380-prosoco-cat-5-air-and-water-resistive-barrier-for-rain)

## Best For

- prosoco enthusiasts

## Why This Product

- Trusted prosoco brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Friendly Formula:** Silyl-Terminated-Poly-Ether (STPE) formulation is safe for the environment.
- • **Seamless Application:** Fluid-applied for a flawless, continuous barrier that eliminates weak points.
- • **Unmatched Durability:** Engineered to withstand extreme weather conditions, including 155 mph winds.
- • **UV-Resistant Technology:** Protects your building envelope from harmful UV rays, ensuring longevity.
- • **Versatile Compatibility:** Perfectly suited for pressure-equalized rain screen construction.

## Overview

The Prosoco Cat 5 Air and Water-Resistive Barrier is a cutting-edge, fluid-applied membrane designed for rain screen construction. This 5-gallon solution combines silicone and polyurethane properties to create a seamless, durable, and UV-resistant barrier that protects against water and air penetration, even in extreme weather conditions like Category 5 hurricanes.

## Description

Prosoco Cat 5 Air and Water-Resistive Barrier for Rain Screen Construction, 5 Gallon

## Features

- PROSOCO R-GUARD Cat 5 Rain Screen Air & Water-Resistive Barrier is a fluid applied, waterproofing, and air and water barrier membrane that combines the best of silicone and polyurethane properties.
- This single component, Silyl-Terminated-Poly-Ether (STPE) is specially formulated to meet the unique requirements of pressure-equalized rain screen construction.
- The roller applied air and waterproof barrier produces a highly durable, seamless, elastomeric weatherproof and UV-resistant membrane on exterior sheathing behind open-jointed or vented rain screen cladding.
- Cat 5 Rain Screen is proven to prevent water and air penetration of the building envelope in conditions ranging from everyday weather to the drenching rains and 155 mph winds of a Category 5 hurricane.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Prosoco |
| Item Weight | 62 pounds |
| Country of Origin | USA |
| Item model number | PRS-70435-05GAL |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![Prosoco Cat 5 Air and Water-Resistive Barrier for Rain Screen Construction, 5 Gallon - Image 1](https://m.media-amazon.com/images/I/31tNsPt1TqL.jpg)

## Questions & Answers

**Q: Can you use this product on a flat roof that has been leaking at the 90 degree angels?**
A: While it can be used on a flat rood, there are many questions I would have before I can offer any suggestions on how to fix your leak issue.  What is the substrate, what do you mean by 90 degree angles?  What will be covering this after applied?  Please feel free to call me if you would like to discuss in more detail and I'll try to help.  302-737-1441

**Q: The specifications state rated for "continuous, intermittent" uv exposure.  does that mean it can handle continuous or just intermittent uv exposure?**
A: Ruly,  Sorry, I didn't realize your were talking about the Rainscreen version of the Cat5.  The non rain screen is orange and the rain screen is black so when you see it through any exterior rain screen slats it disappears as dark or black.  It is made to be exposed to UV though the slats which would produce continuous or intermittent UV radiation without degradation.  Great stuff, just not inexpensive.

**Q: The bucket looks different from the off white with red label, i want verify this is indeed the same product?  prosoco r-guard cat5 rain screen.**
A: Amazon has an old picture  you will get the correct rain screen Cat5 product

**Q: What is the perm rating of this product?**
A: The Cat5 either Rain screen version or regular applied at the correct thickness of 15 wet mills provides a perm rating of 14.  We stock both rain screen and regular version.

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---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-25*