Celotex Isover

ISOVER Cavity Wall Slab (CWS) 36

ISOVER Cavity Wall Slab (CWS) 36 is a glass mineral wool slab providing thermal performance in external masonry cavity walls. Manufactured with a water repellent binder, the strong, resilient and flexible slabs are 455mm wide to fit between standard wall tie spacing.

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Product Features

  • 1200x455mm mineral wool slab
  • Manufactured from up to 75% recycled glass
  • Manufactured with a water repellent binder
  • BBA approved – certificate 18/5560
  • Achieves Eurofins Gold certification, the highest accreditation for indoor air quality
  • Achieves an A+ generic rating within the BRE Global Green Guide

Product Properties

  • Board / Roll size: Width 455mm, Length 1200mm
  • Thickness : 50-150mm
  • Material: Glass mineral wool

Product Performance

  • Lambda: 0.036 W/m.K
  • Reaction to Fire: Euroclass A1 Reaction to Fire classification according to EN 13501-1

Product Benefits

  • Helps to reduce heat loss within the building envelope and decrease energy costs
  • BBA certification - third-party verification that the product has been assessed for its defined application and is compliant with the relevant Building Regulations.
  • Non-combustible – achieves Euroclass A1 Reaction to Fire classification
  • Slabs can be tightly butted together and the inner face will accommodate substrate irregularities to maximise the thermal performance
  • 455mm wide slabs fit standard wall tie spacing for ease of installation