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Cavity Closers
Cavity Closers
Cavity Closers

Verified 2 months ago

Manthorpe Building Products Ltd

Verified 2 months ago

Manthorpe Building Products Ltd

Verified 2 months ago

Manthorpe Building Products Ltd
Summary
A range of BBA approved and fire resistant cavity closers.
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Application

For use in cavity wall constructions of widths from 50 mm upwards.

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Description

A range of insulated, fire-resistant and BBA approved and cavity closers.


Features and benefits:

  • The products are designed for use at door and window openings, providing a damp proof barrier between inner and outer wall leaves without forming a thermal bridge.
  • Can accommodate standard window reveals and rebated check reveals.


Product options:

- Type G240 Rigid cavity closer with double flange:

  • BBA approved.
  • Comprising a core of CFC-free, 27 mm polystyrene insulation with a fire retardant additive, with extruded PVC-U sections push-fitted either side.
  • PVC-U sections incorporate fixing channels (ribbed flanges include fixing holes in the flange).
  • Suitable for use where the inner and outer masonry leaves are in line.
  • Meets the required U-value at the reveal of door and window openings when the frames are fixed to allow a 15 mm overlap into the cavity.
  • Widths: 50 mm, 65 mm, 75 mm, 90 mm, 100 mm, 150 mm. Intermediate sizes are available on request.
  • K-value: 0.035 W/m·K.

- Type G242 Rigid cavity closer with single flange:

  • BBA approved.
  • Comprising a core of CFC-free, 27 mm polystyrene insulation with a fire retardant additive, with extruded PVC-U sections push-fitted either side.
  • PVC-U sections incorporate fixing channels (ribbed flanges include fixing holes in the flange).
  • Suitable for use where the brickwork is rebated to the blockwork.
  • Widths: 50 mm, 65 mm, 75 mm, 90 mm, 100 mm, 150 mm. Intermediate sizes are available on request.
  • K-value: 0.035 W/m·K.

- Type G243 Flexible cavity closer with double flange:

  • BBA approved.
  • Comprising a core of CFC-free, 24 mm polystyrene insulation with a fire retardant additive, with extruded PVC-U sections push-fitted either side.
  • PVC-U sections incorporate fixing channels (ribbed flanges include fixing holes in the flange).
  • Type G243 is suitable for use with circular and arched openings.
  • Widths: 50 mm, 65 mm, 75 mm, 90 mm, 100 mm, 150 mm. Intermediate sizes are available on request.
  • K-value: 0.035 W/m·K.

- Type G244 Flexible cavity closer with single flange:

  • BBA approved.
  • Comprising a core of CFC-free, 24 mm polystyrene insulation with a fire retardant additive, with extruded PVC-U sections push-fitted either side.
  • PVC-U sections incorporate fixing channels (ribbed flanges include fixing holes in the flange).
  • Type G244 is suitable for use with circular and arched openings.
  • Widths: 50 mm, 65 mm, 75 mm, 90 mm, 100 mm, 150 mm. Intermediate sizes are available on request.
  • K-value: 0.035 W/m·K.

- Type G249F 30 Minute Fire Rated Cavity Closer:

  • Comprising an enclosed box construction with a fibre insulating core, providing a solution to cold bridging and acting as a damp proof course and 30 minute fire barrier.
  • The unique compressible clip feature allows the product to expand within the cavity, creating a continuous seal.
  • Type G249F is suitable for new and refurbishment projects.
  • Cavity widths: 50–70 mm, 70–90 mm, 90–110 mm, 110–130 mm.
  • K-value: 0.039 W/m·K.
  • Performance: Designed to comply with The Building Regulations Part L and Scottish Technical Standards Part D.

- Type G249R 30 Minute Fire Rated Cavity Closer:

  • Comprising an enclosed box construction with a fibre insulating core, providing a solution to cold bridging and acting as a damp proof course and 30 minute fire barrier.
  • The unique compressible clip feature allows the product to expand within the cavity, creating a continuous seal.
  • Type G249R is suitable for new and refurbishment projects.
  • Cavity widths: 50–70 mm, 70–90 mm, 90–110 mm, 110–130 mm.
  • K-value: 0.039 W/m·K.
  • Performance: Designed to comply with The Building Regulations Part L and Scottish Technical Standards Part D.
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Product certifications
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Material
Polystyrene, PVC-U
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Specification

Classification data
Third party certification
British Board of Agrément.
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Accessories
Not required., G245 Fixing Clip., G246 Right Angle Fixing Clip.
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To fit cavity width
50 mm., 65 mm., 75 mm., 90 mm., 100 mm., 150 mm.
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Additional properties

Thermal Conductivity:
0.035 W/m·K.
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