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ROCKWOOL Full Fill Cavity Batt Thermal Insulation 80mm - 65.52m2 Pallet

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Lightweight and easy to handle, ROCKWOOL full fill cavity batts are simple to install and provide a close fit against brick and blockwork. The semi-rigid batts are non-combustible and contain water repellent additives which prevent moisture transmission between the outer and inner leaf.

ROCKWOOL Cavity batts are used for thermal insulation of external masonry cavity walls, and for the thermal insulation and acoustic protection of masonry party walls between dwellings. The batts are quick and easy to accurately cut, and provide a great fit; reducing installation time, avoiding gaps and cold spots, and maximising long-term performance. ROCKWOOL Cavity Batts are also used in masonry party walls to prevent the thermal bypass effect, and so achieve a zero U-value, while also providing the required sound protection and fire resistance.

Advantages of ROCKWOOL Full Fill Cavity Batts

  • Outstanding thermal, fire and acoustic insulation
  • Acts as a cavity barrier
  • Water repellent – prevents water transmission from outer to inner leaf
  • Non-combustible – Euroclass A1
  • Superior fit against blockwork
  • Dimensional stability – no sagging or slumping


Length: 1200mm
Width: 455mm
Thickness: 80mm
Coverage: 65.52m2
Thermal Conductivity: 0.037 W/mK
Fire Classification: A1 (EN13501-1)
Compliance: BS EN 13162, ISO 14001


Length 1200mm Thickness 80mm Width 455mm


Thermal Conductivity 0.037 W/mK Application Full Fill Cavity Features Fire Protection Material Mineral Wool

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