Rockwool Soffit Slab
Product Description
Soffit Slab
Product
Soffit Slab consists of a non-combustible rigid Rockwool board with a variety of facings and is particularly suited for providing cost effective fire resistance and thermal insulation through concrete car park soffits and similar applications
Thermal, fire and acoustic insulation for concrete soffits
Advantages
• Excellent thermal performance
• Effective acoustic insulation
• Non-combustible stone wool insulation and facing options
• Fire resistance tested in-situ on a concrete soffit for insulation and integrity
• Cost effective and easy to install
• Water repellent
• Easily cut to accommodate services
• Simply butt together at joints
• Hi-impact option for durability, using non-combustible 6mm Promat PROMATECT® HD boards
Dimensions
For ease of handling, Soffit Slabs are generally supplied 1000x 600mm.Thickness range 130mm-160mm in 10mm increments. Hi-Impact Soffit Slab is available as 1200 x 600mm dimensions, with thickness of 136 -166mm.
U-values
A typical construction comprising of a 150mm concrete floor slab underlined with 130 mm thick Soffit Slab would achieve a U-value of 0.25W/m2K, which meets current thermal requirements. A Uvalue of 0.20 W/m2K can be achieved using 160mm thick Soffit Slab.
Soffit Fire protection
Soffit Slabs have been tested to BS EN 1363-1 to offer fire protection to reinforced concrete floors. When applied to the soffit using the recommended fixings and pattern, 130 and 140mm thick products, with and without facings, provide 3 hours fire insulation and integrity to a minimum 90mm thick floor slab; 150 and 160mm thicknesses provide 4 hours to a minimum 150mm thick slab. For further advice call Customer Support (0871 222 1780).
Performance and Properties
Reaction to Fire Classification
Rockwool Soffit Slab achieves a reaction to fire classification of A1 as defined in BS EN 13501-1 (includes un-faced products and facings as listed below.)
Non-combustible: as defined in Appendix A, table A6 ADB 2000 edition (2002 amendment)
Facings
• un-faced
• non-woven glass-tissue faced (white or black)
• aluminium foil facing
Hi-Impact Soffit Slab
With a 6mm rigid Promat PROMATECT® HD board facing, this combination of two non-combustible products provides increased impact resistance and durability. Available in thicknesses from 136mm to 166mm in 10 mm increments, the off-white facing can be easily decorated to match design and colour schemes.
Thermal performance
Rockwool Soffit Slab has a thermal conductivity (k value) of 0.034 W/mK
Thermal resistance of unfaced Soffit Slab
• 130mm Soffit Slab : 3.80 m2K/W
• 160mm Soffit Slab : 4.70 m2K/W
Product Literature