Verified by manufacturer 5 days ago
Non-ventilated cavity barrier for vertical and horizontal applications.
Designed for use within external wall cavities of up to 450 mm, for both masonry-to-masonry and SFS-to-masonry configurations, including masonry support bracket and balcony stub details.
FireBlox™ Plus is a non-ventilated cavity barrier composed of plain stone mineral wool, foil faced as standard, intended for installation within external wall cavities up to 450 mm, requiring 5 mm of compression when fitting, and compatible with both masonry-to-masonry and SFS-to-masonry applications, including masonry support bracket and balcony stub details, with a fire rating of up to EI120.
Features and benefits:
Color | Silver |
Finish | Foil |
Material | Mineral wool |
Shape | Rectangle |
Length | 1000 mm |
Width | 1200 mm |
Height | 100 mm Guidance for specification option: Depth. |
Uniclass | |
CAWS | P12/40 Mineral wool rigid batts P12/360 Mineral wool rigid batts |
Classification data | |
Material | |
Standard | To BS EN 1366-4:2021. |
Third-party certification | Certifire certification. |
Type | Rigid. |
Facing | Metal foil laminate. |
Fire performance | Reaction to fire classification EN 13501-1 and fire resistance EN 13501-2. |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 20–26%. Manufacturer guidanceProduced from renewable raw materials with zero ozone depletion potential (ODP). |
Dimensions | 1200 x 1000 x 100 mm. Guidance for specification option: Width x length x depth. Bespoke. Guidance for specification option: Cut-to-size. Consult manufacturer for details and insert requirements. |
Fire rating | Up to EI 120, 120 minutes. Guidance for specification option: The exact level of performance will depend on the orientation of the Fireblox and on the construction of the external walls. |
Cavity width | External wall cavities of up to 450 mm. |
Orientation | Vertical. Horizontal. |
Fixing | Not required. FB bracket. Guidance for specification option: Small brackets: up to 250 mm cavities. Medium brackets: for 251–450 mm cavities. FB-C stainless steel screws. FB-S stainless steel screws. |
Accessories | Not required. Polyethylene DPC and interface sealing membrane. |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Material | Mineral wool |
Recyclability | Yes. |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 20 % Guidance for specification option: 26% maximum. |