Summary
Rock mineral wool insulation slab, developed for flat roof insulation in applications onto all types of roof deck, as well as a top layer in double layered systems.
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Application
Rocksilk® AllFix Flat Roof Slab is used for the thermal insulation of flat roofs. The slab is suitable for use under any single ply membrane, torch-on waterproofing, hot applied bitumen systems and mastic asphalt, and is suitable for maintenance foot traffic only. Rocksilk® AllFix Flat Roof Slab is suitable for use as an upstand board in warm roof applications when faced with the fixings and waterproof layer as detailed by the membrane manufacturer. Rocksilk® AllFix Flat Roof Slab is non-combustible with a Euroclass A2-s1,d0 reaction to fire classification.
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Description
Knauf Insulation Rocksilk® Allfix Flat Roof Slab is a BBA certified rock mineral wool insulation slab, developed for flat roof insulation in applications using fully-adhered or mechanically-fixed and adhered membranes onto all types of roof deck, as well as a top layer in double layered systems. It is non-combustible with a Euroclass A2-s1,d0 reaction to fire classification, and is manufactured using Knauf Insulation's Krimpact® Technology.
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Product certifications
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Digital objects
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Finish
Glass tissue
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Material
Rock mineral wool
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Shape
Rectangle
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Length
1200 mm
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Width
1000 mm
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Height
60 mm, 90 mm, 100 mm, 120 mm, 145 mm
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Specification
Standard
To BS EN 13162.
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Third-party certification
BBA Certificate 08-4526 PS2 Rocksilk AllFix Flat Roof Slab.
FM Approved (certificate no 3063483).
Euroclass A1 Reaction to Fire Classification.
CE Marking.
Green Guide Rating B.
EPD (EN 15804+A2).
EUCEB.
Made in Britain.
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Form
Slab.
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Facing
Glass tissue.
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Thickness (minimum)
145 mm.
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Width (nominal)
1000 mm.
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Thermal conductivity (maximum)
0.039 W/mK.
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Fire performance
Euroclass A2-s1,d0.
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Recycled content
35%.
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Additional properties
Vapour resistivity
0.030.
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Water absorption
<1 kg/m² tested in accordance with BS EN 1609.
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Dimensional stability
Dimensionally Stable. Tested in accordance with BS EN 1604.
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Compressive strength (mean value)
70 kPa.
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Suitable substrates
Concrete, metal, timber, plywood, OSB.
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Acoustic performance
Rainfall 37–45.6 LiA dB.
Airbourne 39–52 Rw dB.
Airbourne 39–52 Rw dB.
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FM approved
Certificate no 3063483.
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Environmental Product Declaration (EPD)
EPD available. In accordance with BS EN 15804+A2.
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Green guide rating
C.
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Durability
Odourless, rot-proof, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria. The product will have a life equivalent to that of the wall structure in which it is incorporated.
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Thermal resistance
3.70 m²K/W.
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Sustainability data
Country of material origin
United Kingdom
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Country of product manufacture
United Kingdom
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Material
Rock mineral wool
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A1–A3 ('Production stage')
Embodied carbon as defined in BS EN 15804
Normalized unit
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Declared unit
32.76 kg CO₂ eq/m²
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Recyclability
Recyclable
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Recycled content
35 %
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