Knauf DriTherm 37 Cavity Slabs

What Is DriTherm 37? 

DriTherm 37 Cavity Slabs are specialised mineral wool insulation products designed specifically for full-fill cavity wall insulation. 

Manufactured by Knauf Insulation, these slabs boast a unique water-repellent additive, making them highly resistant to moisture ingress. They are also non-hygroscopic; meaning they do not retain moisture or promote the growth of bacteria or fungi.

With a thermal conductivity of 0.037 W/mK (as indicated in their title), they provide excellent thermal performance, ensuring efficient energy use and reduced heating costs in buildings. 

Their composition not only enhances thermal insulation but also contributes to acoustic improvement, reducing sound transmission through walls. 

DriTherm 37 slabs are sized to fit between wall ties without the need for cutting or waste, offer straightforward installation, making them a popular choice in both new build and retrofit projects. 

Additionally, DriTherm 37 Cavity Slabs are non-combustible and have a Euroclass A1 fire rating, ensuring safety in the event of a fire. Environmentally conscious, these slabs are made from recycled glass and are fully recyclable, aligning with sustainable building practices. 

DriTherm Cavity Slab 37 Applications

Knauf Dritherm Cavity Slab 37 is purposed for use in masonry cavity external walls where a full-fill insulation solution is required.

A masonry cavity wall is made up of two leaves (or skins); an inner leaf and an outer leaf. The "cavity" is simply the gap between these two masonry walls. 

DriTherm cavity slabs are considered to be an effective thermal insulation solution for buildings up to 12m high and in multi-storey applications up to 25m high.

What Are the Benefits of DriTherm Cavity Slabs?

• Non-combustible full-fill insulation eradicates the need for cavity barriers.
• The slabs are 455mm wide to suit standard vertical wall tie spacing, ensuring a closed joint with adjacent slabs.
• Specifically designed to be compatible with standard vertical wall ties, banishing the need for retaining discs. 
• Superior environmental sustainability/low environmental impact.
• The slabs are made from up to 80% recycled glass, minimising the need for mineral raw materials.
• The rigid nature of full-fill insulation slabs further ensures that they do not sag or droop over time - promising maximum protection for the lifetime of your build.

Knauf Insulation Dritherm Cavity Slab 37 Specifications

• Suitable for external masonry cavity walls
• Non-combustible A1 Euroclass Reaction to Fire classification - minimising the risk of fire spreading throughout a cavity
• 0.037 W/mK thermal conductivity - excellent thermal performance
• Water repellent
• Rigid and compact
• Zero Global Warming Potential (GWP)
• Zero Ozone Depletion Potential (ODP) 
  
  

Knauf DriTherm Cavity Slabs 37 Certifications

• Manufactured in accordance with BS EN 13162, ISO 50001 Energy Management Systems. 
• BBA certified - 95/3212 - approved for use in structures up to 12m in height in any exposure zone, as well as in multi-storey applications up to 25m in height.