Cavalok FlameBlok - One-hour Fire Rated Cavity Closer
Verified by manufacturer 4 days ago
One-hour fire rated cavity closer.
Application
For openings in cavity walls.
Description
One-hour fire-rated, fully insulated cavity closer system. Creates a continuous ring of fire protection around openings in cavity walls, combing cavity closer and cavity fire barrier in one product. They feature foil-encased fire insulation that reflects flames and heat and prevents moisture penetration.
Features and benefits:
- Superior thermal performance to other traditional methods of closing cavities, such as battens in timber frame or returned brickwork.
- Provides a thermal break which stops cold bridging.
- Complies with current Accredited Construction Details (ACDs) and E&W Approved Documents B and L.
- Tested to BS EN 1363 as demanded by building regulations.
- Provides a damp proof course around the opening.
- Zerto Global Warming Potential (GWP) and Ozone Depleting Potential (ODP).
General information
Color | White |
Finish | Manufacturer guidanceFoil wrapped. |
Material | PVC-U Guidance for specification option: Recycled extruded PVC-U with Knauf Ecose mineral wool insulation core. |
Uniclass | |
CAWS | F30/18 Cavity closers F30/180 Cavity closers |
Product range |
Specification data - Plastics cavity closers
Classification data | |
Third-party certification | Chiltern International Fire Certificate. |
Accessories | Not required. BBMOU. Guidance for specification option: BigBlok corner. BBTIE. Guidance for specification option: Brick ties. BOOT14. Guidance for specification option: Brace boot. CAVBRBOX. Guidance for specification option: Bracing bar. CAVBOOT. Guidance for specification option: Brace boot. FLBFIL. Guidance for specification option: Fire corner fillet, length: 1200 mm. |
To fit cavity width | 50 mm. Guidance for specification option: 4800 mm long. 75 mm. Guidance for specification option: 3600 mm long. 100 mm. Guidance for specification option: 4800 mm long. 125 mm. Guidance for specification option: 4800 mm long. 150 mm. Guidance for specification option: 4800 mm long. |
Length (effective) | 3600–4800 mm. |
FireRating | 60 minute integrity and 60 minute insulation. Guidance for specification option: In masonry construction. 60 minute integrity and 45 minute insulation. Guidance for specification option: In frame construction. Manufacturer guidanceCheck reveal and flush reveal tested. |
R-Value (minimum) | 0.77 m²k/W. |
Sustainability data
Recyclability | Manufacturer guidancePVC-U.element recyclable |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 100 % Guidance for specification option: PVC-U 100% recycled, insulation 60% recycled. |