Knauf 85mm x 1200mm x 455mm Dritherm 37 Cavity Batten 4.37m2
- Knauf Dritherm 37 cavity slab, 85mm thick x 1200mm long x 455mm wide, covering 4.37m² per pack
- Non-combustible, water-repellent glass mineral wool for reliable thermal insulation
- Designed to fit tightly between wall ties without retaining discs for quick installation
- Suitable for buildings up to 12m high and multi-storey up to 25m in all exposure zones, including severe conditions
- Manufactured with ECOSE Technology, odourless, rot proof and resistant to vermin, fungi, mould and bacteria
The Knauf Dritherm 37 cavity slab is a high-performance glass mineral wool insulation designed for external masonry cavity walls. Trade professionals and site managers will appreciate its non-combustible, water-repellent properties, making it a safe and effective choice for thermal insulation on a wide range of building projects. Please note, cavity barriers are not required when using this full-fill insulation.
Application
This insulation slab is ideal for cavity wall insulation in residential and commercial builds up to 12 metres high, and multi-storey structures up to 25 metres, including those in very severe exposure zones. The slabs fit precisely between wall ties, eliminating the need for retaining discs and speeding up installation on busy sites. Its water-repellent and rot-proof nature ensures durability, while the non-combustible composition reduces fire risk in cavity spaces.
Dimension
- 1200mm (length) x 455mm (width) x 85mm (thickness)
Material
- Glass mineral wool
- Knauf ECOSE bio-based binder, free from added formaldehyde
Type
- Cavity wall insulation slab
Designed specifically for trade and serious DIY users, the Knauf Dritherm 37 offers reliable thermal performance (R-value 2.25 m²K/W) with minimal installation fuss. Images are for illustration purposes only.
Delivery
Important: The following delivery information applies only to orders placed online.
Delivery Times
When placing your order, you will be able to view available delivery times at the checkout.
Please note: while we aim to deliver within 2–3 business days, this is subject to stock availability. A member of our team will be in touch after you place your order to confirm your delivery date.
Click & Collect is also available from selected branches. However, please be aware that stock levels can fluctuate, so we’ll confirm product availability and collection timing once your order is placed.
Delivery Charges
Orders over £150 ex VAT within our local delivery area qualify for free delivery. This excludes palletised or specialist products.
For orders under £150 ex VAT, standard delivery is £10 plus VAT. Certain products have specific delivery costs:
- Civil Engineering products: £30 + VAT.
- Roofing Tiles under £249.99 ex VAT: £60 + VAT.
Delivery charges and policies may vary at the discretion of our branches, and we reserve the right to amend them as required.
We offer a variety of delivery options to meet your needs nationwide, including pallet shipping (subject to size and weight restrictions), site delivery, and same-day or next-day delivery via TradeKart (available in selected postcodes).
Delivery charges are calculated based on your location, the products ordered, and your selected delivery method. Final costs will be displayed at checkout. If you have specific delivery requirements, please contact your local branch via our Branch Finder.
For any delivery-related enquiries, please email our sales team at websales@lordsbm.co.uk.
