Glasswool - DriTherm Cavity slab


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  • High thermal performance - year round comfort
  • Sound absorbing
  • Silicone treated - water resisitant
  • Non-combustible
  • Saves energy - lower energy bills
  • No added formaldehyde
  • Soft to handle and install
  • 50 year moisture resistant warranty
  • Odourless.

Product Description

DriTherm® Cavity slab can be used in masonry cavity external walls and is installed to fully fill the cavity. DriTherm® Cavity slab is 600mm wide to suit standard vertical wall tie spacings, ensuring a closed joint with adjacent slabs. With BCA thermal regulations becoming more stringent and home owners demanding increased comfort and energy efficiency, DriTherm® Cavity slab provides a simple, cost-effective insulation option for home designs requiring 6 Star compliance. With over 4 million double brick homes already insulated with water resistant cavity insulation across Europe, DriTherm® Cavity slab is a proven, thermally efficient insulation. DriTherm® Cavity slab is independently appraised and has a 50 year moisture resistant warranty.


Product TypeBatt
Facing TypeUnfaced


Renovation or New BuildingRenovation & New Building
Building TypeResidential & Commercial

Product Range


Material CodeR-Value (m²K/W)Thickness (mm)Width (mm)Length (mm)Area per pack (m²)Pieces per pack



Thermal Conductivity-ASTM C 518 and AS/NZS 4859.1: 2002.
Thermal Resistance-ASTM C 653 and AS/NZS 4859.1: 2002.
Fire Hazard Properties-Ignitability: 0, Spread of Flame: 0, Heat Evolved: 0, Smoke Developed: 0-1.
Microbial Growth-Does not support microbial growth.
Corrosion Resistance-No greater than sterile cotton.
Acoustic-Will contribute to the BCA’s acceptable construction practices to achieve the required acoustic performance in cavity wall construction.


FREE Thermal calculator - Kompli™

What is Kompli™?

The Kompli™ software enables you to calculate the thermal performance (U-Value and Total R-Value) of commercial and residential construction types and systems for walls, roofs and floors to comply with the latest changes to the National Construction Code 2019 (NCC 2019).



BRANZ Appraised
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GreenTag Level A Certification
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