Knauf 100mm x 1200mm x 455mm Dritherm 37 Cavity Batten 6.55m2
- Knauf Dritherm 37 cavity slab, 100mm x 1200mm x 455mm (3.94" x 47.2" x 17.9")
- Designed for thermal insulation of external masonry cavity walls, reducing heat loss effectively
- Non-combustible Euroclass A1 rated, safe for buildings up to 25m in height
- Lightweight and easy to handle, cut and install on site for fast fitting
- Water-repellent, rot-proof and resistant to vermin, fungi, mould and bacteria
- Slabs sized to fit snugly between wall ties, no retaining discs needed
- Manufactured with eco-friendly Knauf ECOSE Technology binder, low environmental impact
The Knauf Dritherm 37 cavity insulation slab is a high-quality glass mineral wool product tailored for trade professionals and serious DIYers working on external masonry cavity walls. It offers excellent thermal performance, durability and fire safety, making it an ideal choice for foundations and walls on a range of building projects. Please note that slabs are sized to fit between wall ties, so retaining discs are not required.
Application
This insulation slab is designed for use in external masonry cavity walls, providing a continuous thermal barrier that minimises heat loss and improves energy efficiency. Its water-repellent properties prevent moisture ingress while maintaining breathability. The product is Euroclass A1 non-combustible, making it suitable for buildings up to 12 metres high and multi-storey projects up to 25 metres, including in very severe exposure zones. Its tight fit between wall ties eliminates air gaps, ensuring consistent insulation performance without the need for cavity barriers.
Dimension
- 100mm thickness x 1200mm length x 455mm width (3.94" x 47.2" x 17.9")
- Coverage per slab: 0.546m², with packs covering 6.55m²
Material
- Glass mineral wool
- Knauf ECOSE Technology binder – bio-based, formaldehyde-free
Type
- Cavity wall insulation slab
This slab is lightweight and easy to cut, handle and install on busy sites. Its resistance to vermin, fungi, mould and bacteria ensures long-term reliability and structural integrity. The product is a smart, environmentally conscious choice for builders and site managers looking for dependable insulation that meets modern building regulations.
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.
