Withdrawn, Document not available for download
Core Supplement
Technical Extra
Subdivided into four sections: NHBC Standards; regulation and compliance; guidance and good practice; information and support. Covers: cavity trays and DPCs; movement joints in external masonry walls; slating and tiling for pitched roofs; type approvals: certificate changes; Building Regulations: Regulation 38; publication of category 4 screening levels for land affected by contamination; copings and cappings to brick chimneys; suspended beam and block concrete floors; installation of GRP dormer windows; and audible cracking noises in intermediate floors. Also includes: technical news, information and support.
Withdrawn January 2024. Technical Extra publication replaces Standards Extra and Sustainability Extra.
Formed in 1936, the NHBC is the standard setting body for new and newly converted homes in the UK.
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
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