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Manthorpe Building Products Ltd
Walls & Partitions ">> Structural Components & Protection > Structural Fire Protection

G249F - Half Hour Fire Rated Cavity Closer

by Manthorpe Building Products Ltd

G249F - Half Hour Fire Rated Cavity Closer

by Manthorpe Building Products Ltd

The Manthorpe G249F Half-Hour Fire Rated Cavity Closer has been designed for use where a fire barrier is required to seal cavities around window and door reveals of a building.


The Manthorpe G249F Half-Hour Fire Rated Cavity Closer has been designed for use where a fire barrier is required to seal cavities around window and door reveals of a building.


The unique compressible clip feature allows the product to compress into the cavity creating a continuous seal to any varying width. The enclosed box design incorporates a fibre insulating core which provides an economical solution to cold bridging as it acts as a thermal cavity closer, as well as a DPC and half-hour fire barrier.


It is manufactured in white in four sizes which suit cavity widths from 50mm to 130mm. It can easily be installed either in new build or refurbishment situations with no special fixing requirements or tools.


The Manthorpe G249F Half Hour Fire Rated Cavity Closer has been designed to comply with Building Regulations Part L and Scottish Technical Standards Part D.


The product is composed of a rigid extruded UPVC section with unique variable clip feature and compressed mineral fire wool insulation.


Key Features

Half hour fire rated

Rigid extruded UPVC sections

Unique variable clip feature

Compressed mineral fibre wool insulation.


Fitting Requirements

Brick up to sill height, cut and fit the sill closer. Cut the jamb lengths 75mm oversize and trim the flanges back to allow them to overlap the sill closer once fitted.


Continue to brick up the wall, securing all pieces of the cavity closer by plugging and screwing through the larger flange into the internal leaf.


Certifications

Warrington Fire - G249 Cavity Closer - Test Report No. 134212.pdf


Regulations & Standards

BS 5250:2011 Control of condensation in buildings.


Approved Document L1 & L2:

Conservation of fuel and power.


NHBC Technical Guidance 6.7:

Doors, Windows & Glazing


BRE Digest Report 262: Thermal Insulation: Avoiding Risks.


BRE Information Paper IP 1/06: Thermal Bridging at Junctions & Openings.


G249F - Half Hour Fire Rated Cavity Closer

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Specification Details for G249F - Half Hour Fire Rated Cavity Closer (Structural Fire Protection)

Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Manthorpe Building Products Ltd is consulted before specifying.

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