Glass & Mineral Wool Insulation
Glass and mineral wool insulation is widely used for thermal and acoustic performance across lofts, partitions and cavity walls. We stock a broad range of rolls, slabs and batts from trusted brands including Isover, Knauf, Superglass and Rockwool, ready for quick collection or prompt delivery to site.
Discover Our Full Product Range:
| Brand | Product | Thickness |
| Isover | Lite Loft Roll | 100mm |
| Isover | Lite Loft Roll | 150mm |
| Isover | Lite Loft Roll | 200mm |
| Knauf | Loft Roll | 100mm |
| Knauf | Loft Roll | 150mm |
| Knauf | Loft Roll | 200mm |
| Knauf | Acoustic Partition Roll (APR) | 25mm |
| Knauf | Acoustic Partition Roll (APR) | 50mm |
| Knauf | Acoustic Partition Roll (APR) | 75mm |
| Knauf | Acoustic Partition Roll (APR) | 100mm |
| Knauf | Dritherm 37 | 75mm |
| Knauf | Dritherm 37 | 100mm |
| Knauf | Dritherm 37 | 150mm |
| Knauf | Dritherm 32 | 100mm |
| Knauf | Dritherm 32 | 150mm |
| Superglass | Acoustic Partition Roll (APR) | 50mm |
| Superglass | Acoustic Partition Roll (APR) | 100mm |
| Superglass | CWS36 | 100mm |
| Superglass | CWS36 | 150mm |
| Rockwool | RWA45 | 25mm |
| Rockwool | RWA45 | 50mm |
| Rockwool | RWA45 | 75mm |
| Rockwool | RWA45 | 100mm |
| Rockwool | RW3 | 30mm |
| Rockwool | RW3 | 50mm |
| Rockwool | RW3 | 75mm |
| Rockwool | RW3 | 100mm |
| Rockwool | RW5 | 30mm |
| Rockwool | RW5 | 50mm |
| Rockwool | RW5 | 75mm |
| Rockwool | RW5 | 100mm |
What is Glass & Mineral Wool Insulation?
Glass and mineral wool insulation is made from spun fibres that trap air within the material, helping to reduce heat transfer and improve acoustic performance. Depending on the product type, it can be supplied as flexible rolls, semi-rigid batts or dense slabs for structural and acoustic applications.
Most common applications
- Loft and roof insulation
- Internal stud wall partitions
- Masonry cavity walls
- Masonry cavity walls
- Acoustic separation between rooms
Why choose glass or mineral wool insulation
- Provides reliable thermal performance
- Excellent for reducing sound transfer
- Excellent for reducing sound transfer
- Non-combustible options available
- Suitable for a wide range of building applications
Popular brands
- Isover
- Knauf Insulation
- Rockwool
- Superglass
- URSA
FAQ’s:
Do you deliver glass and mineral wool insulation locally?
Yes, we deliver throughout Watford and nearby areas. Orders placed early can often be dispatched on the same delivery run.
What’s the difference between glass wool and mineral wool?
Glass wool is typically lighter and supplied in rolls for lofts and partitions, while mineral wool is denser and often used where higher acoustic or fire performance is required.
Can I use loft roll insulation in walls?
Loft rolls are designed primarily for horizontal applications. For cavity walls or partitions, specialist slabs or batts are usually recommended.
How do I choose the right thickness?
Thickness depends on the application and the performance required. If you’re unsure, our team can help you select the most suitable product for your project.