Knauf 85mm x 1200mm x 455mm Dritherm 32 Cavity Slab 2.73m2
- Knauf Dritherm 32 cavity slab measuring 85mm x 1200mm x 455mm (3.35in x 47.24in x 17.91in) for effective wall insulation
- Water-repellent, non-combustible mineral wool that fits tightly between wall ties without retaining discs
- Resistant to rot, odourless, and inhibits vermin, fungi, mould and bacterial growth
- Lightweight and easy to cut, handle, and install on site for quick progress
- No cavity barriers required; suitable for buildings up to 12m high and multi-storey up to 25m, including very severe exposure zones
The Knauf Dritherm 32 cavity slab is a robust glass mineral wool insulation designed specifically for external masonry cavity walls. Trade professionals and serious DIYers will appreciate its reliable thermal performance and ease of installation, making it a smart choice for building projects requiring durable, fire-safe insulation. Please note: cavity barriers are not required with this non-combustible full-fill insulation.
Application
This cavity slab is ideal for thermally insulating external walls in residential and commercial buildings. Its tight fit between wall ties eliminates gaps that can reduce efficiency, while its non-combustible nature minimises fire risk, removing the need for cavity barriers. It suits buildings up to 12 metres in height and multi-storey projects up to 25 metres, even in very severe exposure zones. The product is also water-repellent and BBA certified, ensuring consistent performance in all weather conditions.
Dimension
- 85mm thickness x 1200mm length x 455mm width (3.35in x 47.24in x 17.91in)
Material
- Glass mineral wool insulation with Knauf ECOSE Technology bio-based binder
Type
- Cavity wall insulation slab
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.
