Fireshield® vapour permeable membrane, which is designed specifically to improve
the fire protection behind cladding has been chosen for a new Science Centre
at Bevington Primary school in the Royal Borough of Kensington and Chelsea,
London.
The project includes a brand new Science Studio, plus before and after school club
buildings.
SIP Build UK was appointed as frame subcontractor for the project and chose
the Fireshield membrane as part of the SIPS panelling system. Chris Duckworth
from SIP Build UK explains: “We chose Fireshield as it provided the project with
a number of really important benefits. Fireshield is a high-performance breather
membrane which enables us to achieve the requirements in terms of fire
protection without compromising on vapour control.
Fireshield was also ideal because it is easy to use and allowed us to achieve the
requirements in one process, using just the membrane, rather than the typical
approach of two, cement board and a membrane.”
Fireshield is the culmination of leading research to produce a vapour permeable
membrane with a intumescent coated surface, which has a unique composition
that actively reacts to help protect the materials underneath. The intumescent
coating helps protect the substrate by reducing the risk of fire taking hold and
significantly reduces the formation of droplets and smoke.
The BBA Certificate awarded to Fireshield confirms that it has enhanced
performance in relation to reaction to fire classification, will reduce the risk of
interstitial condensation, and will have a life equal to that of the building in which it
is installed.
Fireshield complies with BS5250, BS4016 and NHBC requirements for vapour
permeable walling underlays. It is installed and fixed to the substrate in the same
manner as standard breather membranes using mechanical fixings. Applications
include both commercial and residential buildings including apartments and student
accommodation, as well as Rainscreen cladding and applications over 18m high
(11m in Scotland).

Fireshield
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Datasheets

Installation Guides

Material Properties

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Certification

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Material Properties
Fireshield
Property | Test Method | Result |
---|---|---|
Roll Size | - | 1.1 x 20 m |
Weight | EN 1849-2 | 737 gsm |
Thickness | EN 1849-2 | 1.2 mm |
Nail Tear Resistance - MD | EN 12310-1 | 273 N |
Nail Tear Resistance - CD | EN 12310-1 | 330 N |
Resistance to Water Penetration | EN 13859-1 | W1 Class |
Tensile Strength - MD | EN 12311-1 | 300 N/50mm |
Tensile Strength - CD | EN 12311-1 | 275 N/50mm |
Elongation - MD | EN 12311-1 | 2 to 3 % |
Elongation - CD | EN 12311-1 | 2 to 3 % |
Water impermeability | EN 20811 | ≥2 m |
UV Resistance | EN 13859-1 | 12 months |
Water Vapour Resistance Sd | EN ISO 12572 Condition C | 0.08 m |
Flexibility at low temperatures | EN 1109 | -20 °C |
Reaction to Fire | EN 13501-1 (Methods EN 11925-2 and EN 13823) | B-s1, d0 Class |
Resistance to Air Penetration | EN 12114 | ≤1 m3/m2/hr  @  50Pa |
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