129-Internal_roof_fire_break_barrier

Internal Roof Fire Break Barrier

Internally-fitted fire break to protect partition walls under roof slates or tiles between adjoining properties. (PRODUCT 129)

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  • Description
  • APPLICATION INSTRUCTIONS
  • DOWNLOADS
  • ORDER REFERENCES

Product Description

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An internal barrier designed to inhibit the spread of fire and smoke from one roof space to another. Ideal for use in terraced and semi-detached houses. This product is economical and it can be fitted quickly and easily by one or two fitters working from inside the roof space. In a recent test carried out, an unprotected roof collapsed at 39 minutes, whereas the Envirograf® FB70 Fire Barrier Curtain that has been tested to 87 minutes integrity, kept the protection from one roof to the next, giving valuable time for the fire department to arrive on site.

 

ADVANTAGES

  • Offers full smoke protection and up to 81 minutes fire protection
  • Quick and easy to install on all roof designs
  • Provides both Class 0 and Class 1 spread of flame protection
  • Maintains integrity of existing weatherproofing

 

FIRE TEST PERFORMANCE

Tested to BS476 Part 22 (1987), achieving 81 minutes integrity and 22 minutes insulation.

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APPLICATION INSTRUCTIONS

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Only one side of a house needs to be sealed; one side of a semi-detached house or one side of a terraced house, next to the party wall. Cut the existing roofing felt next to the party wall and up to the first truss away from the wall. This can be discarded. Using supplied intumescent adhesive, adhere the fireproof sponge between theb battens, filling the gap between the top of the party wall and the underside of the tiles or slates. Apply a coating of the adhesive to the truss. Adhere the fire barrier curtain to the truss, ensuring that the coloured side is upward. Fix the battens over the fire barrier curtain and nail to the truss with 30mm clout nails. Apply adhesive to the underside of the tile battens to help hold up the fire barrier curtain, then apply adhesive to the wooden truss, near to the party wall or to the wall itself. Stretch the fire barrier curtain under the tile battens, over to the truss or wall and press onto the applied adhesive. Fix the batten with 30mm clout nails through the fire barrier curtain, into the truss or wall. The fire barrier curtain can be installed in sections, starting from the eaves downward, with an overlap joint of 50mm. Adhere the overlap joint with supplied intumescent adhesive.

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DOWNLOADS

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Please use the links below to download relevant information as PDF documents:

 

Technical Information

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Application Instructions

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COSHH Data

N/A

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ORDER REFERENCES

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REF CURTAIN SIZE (WxL)
IRB 1220mm x 1000mm

Above order reference includes sufficient adhesive and battens to fix the fire barrier curtain, plus one 30mm x 30mm x 1000mm length of fireproof sponge.

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