Horizontal Fire Closer - Cavity Barrier
Verified by manufacturer 1 month ago
Semi rigid Rockwool stone wool insulation laminated to a polythene DPC.
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 Manufacturer guidanceThickness. |
Uniclass | |
CAWS | F30/18 Cavity closers F30/180 Cavity closers |
Product range |
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 guidanceAIM 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