Knauf 100mm x 1200mm x 455mm Dritherm 32 Cavity Slab 3.28m2
- Knauf Dritherm 32 cavity slab, 100mm x 1200mm x 455mm, covers 3.28m² per pack
- Water-repellent, non-combustible insulation designed for external masonry cavity walls
- Easy to handle and cut, with slabs sized to fit snugly between wall ties without retaining discs
- Odourless, rot proof, and resistant to vermin, fungi, mould, and bacteria for long-lasting performance
- No cavity barriers required due to full-fill, non-combustible design, suitable for buildings up to 12m high and multi-storey up to 25m in all exposure zones
The Knauf Dritherm 32 cavity slab is a high-performance glass mineral wool insulation designed to provide reliable thermal protection for external masonry cavity walls. Ideal for builders, bricklayers and site managers, this slab offers a practical solution that combines ease of installation with excellent durability. Please note, cavity barriers are not required with this non-combustible full-fill insulation.
Application
Specifically engineered for use in external masonry cavity walls, this slab ensures a tight fit between wall ties to eliminate air gaps and improve thermal efficiency. Its non-combustible nature reduces fire risk, allowing use in buildings up to 12 metres high and multi-storey structures up to 25 metres across all exposure zones, even very severe conditions. The insulation is lightweight and easy to cut, making it well suited to busy sites where reliable, quick installation is essential.
Dimension
- 100mm thickness x 1200mm length x 455mm width (4" x 47" x 18")
- Pack coverage: 3.28m²
Material
- Glass mineral wool with Knauf ECOSE Technology bio-based binder (no added formaldehyde)
- Water-repellent and rot proof
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.
