Verified by manufacturer 4 days ago
Certifire Certificate
Certificate type
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 relevant compression depending on application (refer to the TDS) 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. |