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Horizontal Fire Closer - Cavity Barrier

Verified by manufacturer 25 days ago

AIM

Semi rigid Rockwool stone wool insulation laminated to a polythene DPC.

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Application

  • Designed to provide up to two hours of resistance to the spread of fire within a cavity that is adjacent to separating floors within multi story buildings.
  • Provides resistance to the passage of flanking sound within the wall cavity adjacent to separating floors.

Description

The Horizontal Fire Closer is fitted at floor slab level and designed to provide up to two hours of fire resistance vertically in multi-storey constructions. It also significantly reduces flanking sound transmission within external wall cavities.


The Horizontal Fire Closer is supported with test evidence to show its performance in cavity walls constructed from a variety of different substrates including masonry, timber frame structures and SFS/ through wall systems.


Features and benefits:

  • A section of Rockwool stone wool insulation laminated to a polythene DPC.
  • DPC polythene conforming to BS 6515.
  • Stone wool and DPC dimensions to suit most external wall cavity sizes.
  • AIM Horizontal Fire Closer is supplied pre-cut in 1200 mm lengths, 260 mm wide and thicknesses depending on the fire rating required. The product supplied is as required to fill the void.
  • Up to 2 hours fire resistance.
  • Prevents spread of fire past separating floors.
  • Reduces flanking sound transmission within external wall cavities adjacent to separating floors.
  • Test evidence that supports the use within a wider range of substrates.
  • The pre-cut product is supplied with the required fixing clips.

General information

Material

Polythene

Stonewool

Shape

Rectangle

Length

1200 mm

Width

260 mm

Guidance for specification option:

Insulation.

600 mm

Guidance for specification option:

Damp proof course polythene.

Bespoke

Guidance for specification option:

Bespoke widths available upon request.

Height

50 mm

65 mm

75 mm

90 mm

100 mm

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Manufacturer guidance

Thickness.

Uniclass

Pr_35_90_50_64 Plastics cavity closersPrimary

CAWS

F30/18 Cavity closers

F30/180 Cavity closers

Product range

Thermal And Acoustic Insulation

Specification data - Plastics cavity closers

Third party certification

DPC polythene to BS 6515:1984.

Accessories

Not required.

Acrylic fire rated intumescent mastic.

To fit cavity width

50 mm.

65 mm.

75 mm.

90 mm.

100 mm.

Bespoke.

Guidance for specification option:

Bespoke thicknesses available on request. Consult manufacturer and insert requirements.

Length (effective)

1200 mm.

ThermalConductivity

0.034 W/mK.

Fire performance

To BS EN 1366-4, up to 120 minutes integrity and insulation. Masonry to masonry: 120/120 minutes; Masonry to softwood: 60/30 minutes; Masonry to OSB: 60/60 minutes; Masonry to CP Board/ SFS: 60/60 minutes.

Semi-rigid DPC

Length: 1300 mm, DPC Width: 600 mm, DPC Overlaps: Top – 300 mm, Bottom – 40 mm, End – 100 mm.

Acoustic performance

23 dB Rw (minimum 140 mm bearing).

Manufacturer guidance

AIM Horizontal Closer may be used to reduce the passage of flanking sound through external wall cavities.

Durability

AIM fire barriers are chemically inert, will not sustain vermin and do not encourage the growth of rot, fungi, moulds or bacteria. They do not degrade under the usual conditions found in buildings and will perform effectively for the life of the building.

Guidance for specification option:

They are compatible with all normal building materials. Rockwool stone wool has been proven in service for over 60 years, in a wide range of climates and degrees of exposure. It will generally perform effectively for the lifetime of the building, plant or structure.

Environmental

Global warming potential = zero.

Guidance for specification option:

AIM fire barrier products are manufactured from stone wool insulation which is universally recognised as being a sustainable and environmentally friendly material’.

Compatibility

Compatible with all normal building materials.

Literature

AIM Horizontal Fire Closer Technical Guide 2022

AIM Horizontal Fire Closer Technical Guide 2022