Soffit Slab
Soffit Slab is a fire-resistant thermal insulation solution designed for concrete soffits.
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Application(s)
- Floors & Ceilings
- Fire Protection
- Structural Fire Protection
- Soffits
Product description
ROCKWOOL® Soffit Slab is a non-combustible thermal insulation product suitable for concrete soffits and is capable of providing up to 4 hours of fire protection. The product is available with optional aluminium foil and tissue facings.
Soffit Slab can be friction fitted, which helps to minimise gaps and therefore can prevent thermal bridging. If required, the slab can be cut with a sharp knife to fit into awkward spaces or around services.
For applications requiring increased impact resistance, Hi Impact Soffit Slab features a bonded 6mm fibre cement board. This composite product is non-combustible and features a Euroclass A2-s1, d0 rating.
- Euroclass A2-s1,d0 in accordance with BS EN 13501-1 Reaction to Fire rating
- Thermal conductivity 0.034 W/mK
- Tested in accordance with BS EN 1363-1
- Up to 240 minutes of fire resistance*
Areas of application
Soffit Slab is suitable for use on the following construction types:
- Concrete soffits
Documentation
Soffit Slab Datasheet
Soffit Slab Installation Guide
Installation guideline for ROCKWOOL Soffit Slab
SUIS ROCKWOOL UK
Safe use instruction sheet ROCKWOOL stone wool insulation products
Republic of Ireland Price List
Price List March 2025
UK Price List
Price List March 2025
Product properties
| Name | Value | Test standard | Symbol | Unit |
|---|---|---|---|---|
| Declared thermal conductivity | 0.034 | EN 826 | λD | W/mK |
| Reaction to Fire | A1 | EN 13501-1 | Euroclass | |
| Long term water absorption | EN 12087 | WL(P) | kg/m² | |
| Short term water absorption | EN 1609 | WS | kg/m² | |
| Product standard | EN 13162:2012+A1:2015 | |||
| CE certificate number | 0751-CPR-393.0-01 | |||
| Declaration of Performance (DoP) number | UK-WER-0043-02 | |||
| Facing type, side 1 | No Facing Alu Foil Glass Tissue (black, Neutral, White) |
Product variants
ROCKWOOL provide's proven fire performance products for Livingston shopping Centre case study
Uncover the strategic use of Hi-Impact Soffit Slab, BeamClad®, and Rockpanel Woods in mahogany, cherry, and merbau shades, creating a sustainable and visually stunning 70,000-square-foot development.
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