| Summary: | Part 1: Gives requirements for thermal insulation batts made from man-made mineral fibre and intended for filling cavities in cavity wall having masonry and/or concrete leaves. Covers definitions, composition, dimensional deviations, density, resistance to water retention, resistance to wicking, resistances to water penetration, pH value and water-soluble salt content, resistance to settlement, non-combustibility, thermal conductivity and marking. -- Part 2: Recommendations for filling cavities in cavity walls with masonry and/or concrete leaves up to 12m in height (normal three storey construction). Criteria for design and construction of walls to be insulated. Essential precautions and procedures for the installation. Appendix gives additional recommendations for buildings exceeding 12m in height.
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