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immediate downloadReleased: 1994-04-15
BS 7457:1994
Specification for polyurethane (PUR) foam systems suitable for stabilization and thermal insulation of cavity walls with masonry or concrete inner and outer leaves
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Standard number: | BS 7457:1994 |
Pages: | 12 |
Released: | 1994-04-15 |
ISBN: | 0 580 22833 9 |
Status: | Standard |
DESCRIPTION
BS 7457:1994
This standard BS 7457:1994 Specification for polyurethane (PUR) foam systems suitable for stabilization and thermal insulation of cavity walls with masonry or concrete inner and outer leaves is classified in these ICS categories:
- 91.100.60 Thermal and sound insulating materials
This British Standard specifies the property requirements, composition, and the production parameters of suitable rigid polyurethane foam (PUR) systems, which are dispensed on site, to fill the cavities of maximum width 150 mm of suitably constructed external walls of maximum continuous cavity height 12 m which have masonry or concrete inner and outer leaves, thereby providing additional thermal insulation to such walls and simultaneously, especially in the case of damaged wall ties improving their structural integrity.