Description
Flexible Sponge Rainscreen Moisture Resistant Cavity Barrier
Flexible sponge rainscreen moisture resistant cavity barrier range, especially designed to offer excellent passive fire protection for rainscreen and other types of cladding.
Using fireproof sponge instead of mineral wool, this range offers many advatanges:
- The barrier is much thinner, additionally offering a better fire rating.
- Easy to fix and no masks required.
- Fixing brackets already in place, fix with screws, nails, or spit nails.
Made in 1-metre lengths, with 4 fitting brackets for horizontal application or 3 brackets for vertical.
Cut with a sharp knife to fit around metalwork. Furthermore, the cover is made from a strong, intumescent-coated material, completely water-resistant.
The RSF range is the same as the RSM but with a foiled reinforced covering that is water-resistant.
Depending on the required fire rating, the barrier can have a different thickness. Specify the overall cavity size and required ventilation gap when ordering.
Cavity Barriers are pieces of fire-stopping material. They fit within the cavity of a building at each floor horizontally and party wall in a verticle position. The material provides compartmentation. Both the flames and heat cannot be transferred to other compartmental areas. Throughout the life of the building, the Cavity Barrier will remain fixed in place. In the event of a fire, the intumescent material expands and seals off the gaps. Additionally, the horizontal barriers allow for a ventilation gap within the cavity. Subsequently closing when the intumescent expands.
Our Cavity Barrier range at Envirograf® offers superb protection to your building by providing fire stopping. Explore the Cavity Barrier range online.
Advantages
– Barriers have a slim profile without compromising fire rating.
– Non-fibrous, dust-free and easy to install with washers or brackets.
– The entire RS range can be fitted vertically or horizontally.
– Tested to BS EN 1363-1 (1999).
– Tested to BS476 Part 20, achieving up to 66 minutes protection.
Application Instructions
This barrier comes supplied with 4 fixing brackets which can be simply screwed, nailed or spit nailed to the internal wall (pre-drilled holes are suitablefor up to 12mm size screws).
Non-fibrous products used in this barrier makes it even easier to install. The barrier can be easily cut with a sharp knife or blade. If during installation you find wall imperfections, these can be filled with Envirograf Intumescent Mastic (Product 58).
Order References / Sizes
RSF RANGE 30/60 minutes / Thickness 40mm
RSF Non-ventilated 1 metre long
Ref Width
RSF150 150mm
RSF180 180mm
RSF200 200mm
RSF250 250mm
RSF300 300mm
RSF/I with intumescent 1 metre long
Ref Width
RSF/I/150 150mm
RSF/I/180 180mm
RSF/I/200 200mm
RSF/I/250 250mm
RSF/I/300 300mm
RSF/A with ventilation holes 1 metre long
Ref Width
RSF/A/150 150mm
RSF/A/180 180mm
RSF/A/200 200mm
RSF/A/250 250mm
RSF/A/300 300mm
RSF with added moisture penetration protection
In some cases there may be a requirement for a perfect seal along the back fixing edge to seal and stop moisture penetrating down the back of the seal. We can supply the RSF range with a backing to stop the moisture penetration. The barrier has a strip of intumescent sponge along the back of the barrier that stops moisture from penetrating the seal. Also there is a sturdy metal strip built inside the barrier along the back to ensure there is a perfect seal. Can be added to all RSF barriers.
Add /MR to reference when ordering.