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FIREFLY Roof Cavity Closer
Verified by manufacturer 22 days ago
Mineral fibre ablative batt with bonded graphite strip for use with FIREFLY® systems.
Application
- The FIREFLY® Roof Cavity Closer is designed to extend the compartmentation line through the roof membrane to the outer tile/sheet.
- It is installed below the membrane and can be used when installing a FIREFLY® Barrier or a FB180 Batt system.
- Suitable for use both perpendicular and parallel to the gable end.
Description
Providing a fire-tested solution to close the void between roof membrane and tile at compartment lines, FIREFLY® Roof Cavity Closer is a specially manufactured combination of ablative batt and intumescent graphite. The bonded intumescent graphite strip will expand to fill the void to the outer tiles in the event of a fire.
The FIREFLY® Roof Cavity Closer should be friction-fitted into the void and edges “buttered” and sealed with FIREFLY® FR Intumescent Acrylic. Consult drawings on the
FIREFLY® website for full installation details for various scenarios.
Features and benefits:
- Provides a practical fire-stopping solution to meet the requirements of Building Regulation Part B to close the void between the roof membrane and outer tiles.
- Extends compartment fully to the exterior skin of the building.
- Achieves compliance without the need to provide a 1500 mm wide protected zone (or “umbrella zone”) either side of the compartment line.
- Sits below the membrane, so there's no need to remove tiles or cut the membrane to fit – suitable for retrofit.
- Can be used in conjunction with various materials within the compartment wall; including FIREFLY® flexible fire barriers, FIREFLY® FB180 Ablative Batt, timber, plasterboard and block/ brickwork.
- Tested to the requirements of BS EN 1363-1:2020 and provides a tested and certified solution as part of a FIREFLY® system.
System Products:
- Ablative Coating
- FR Intumescent Acrylic Sealant
- 50 x 50 x 0.7mm Galvanized Equal Supporting Angle 1.2m
- Timber Screw 80 x 7mm
- Penny Washer 19mm
General information
Color | White |
Finish | Coated |
Material | Rock mineral wool |
Shape | Rectangle |
Length | 1200 mm 600 mm |
Width | 150 mm 400 mm 300 mm |
Height | 50 mm |
Warranty description | Other |
Uniclass | |
CAWS | F30/18 Cavity closers F30/180 Cavity closers |
SKU Code |
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Specification data - Mineral wool fire-stopping
Classification data | |
Material | |
Standard | Tested to BS EN 1363-1:2020. |
Third-party certification | Guidance for specification option: Fully tested with third party certification under application. Consult manufacturer for details. |
Type | Rigid. |
Density | 180 kg/m³. |
Facing | Ablative coated with bonded graphite strip. |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | None permitted. |
Dimensions | 1200 x 150 x 50 mm. 600 x 150 x 50 mm. Guidance for specification option: Stocked. 1200 x 400 x 50 mm. 1200 x 300 x 50 mm. 600 x 400 x 50 mm. Guidance for specification option: Made to order. 600 x 300 x 50 mm. |
Sustainability data
Contains Red List materials | No |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Manufacturing plant location | |
Material | Rock mineral wool |
Expected Life | Lifetime |
Literature
Literature type
FIREFLY Roof Cavity Closer
FIREFLY Ancillaries & Fixings Summary
FIREFLY® Product Summary
CPD materials
Design & Understanding of Passive Fire Barriers & Compartmentation
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