9.3.3 Insulation
Thermal and acoustic insulation shall provide appropriate performance, and be suitable for the intended location and use.
Materials and constructions which are in accordance with building regulations are generally acceptable.
Suitable sound insulation materials include:
- flexible material
- mineral fibre quilt insulation
- board material for use under screeds (eg EPS SD grade expanded polystyrene)
- proprietary products which have been assessed in accordance with Technical Requirement R3.
Table 1: Thermal insulation materials
| Material | Standard | Grade or description |
|---|---|---|
| EPS (expanded polystyrene) | BS EN 13163 | 70 |
| PUR (rigid polyurethane) | BS 4841 | For use under screeds |
| PIR (rigid polyisocyanurate) | BS 4841 | For use under screeds |
| Fibre building board | BS EN 622 | Insulating board (softboard) |
| Proprietary material | Technical Requirement R3 |
Last updated: 2nd January 2024