Superglass Superwall Cavity SlabSuperwall is a dual purpose cavity wall slab treated with water repellent additives and designed for full or partial fill applications in masonry walls.
Superwall cavity slabs are manufactured in accordance with the new European Harmonised Standards and carry the CE mark. The BBA certificate, as an additional voluntary mark, adds another level of confidence to this product through testing in application. This demonstrates that they fulfil the requirements for use in their intended purpose when installed in compliance with the details provided within the certificate. (Certificate No. 89/2231)
Grant and Stone currently stock Superwall Cavity Slab in these sizes:
| Thickness (mm) | Width (mm) | Length (m) | Pack Area (m) |
| 50 | 455 | 1200 | 8.74 |
| 65 | 455 | 1200 | 6.55 |
| 75 | 455 | 1200 | 5.46 |
| Reaction to Fire Classification: Group A1 | |||