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NBS 56 Wooden performance. Moisture content of timber

Publication Year

2007

Document Status

Amber 
Caution

Abstract

Outlines recommendations for moisture content for specific situations and the consequences of high moisture content. Discusses service classes to facilitate strength grading at a moisture content appropriate for the exposure conditions. Defines movement at change in humidity from 90-60% at constant temperature for a range of timber types, alongside workability, durability and suitability for joinery. Includes a note on preservatives.

Document History

NBS Shortcuts is a series of illustrated "how-to" articles and guides, covering a wide range of practice, regulatory and design guidance.

Author

Williams, A.

Publisher Information

RIBA Enterprises

RIBA Enterprises has over 30 years experience in delivering effective solutions to the information needs of the UK construction industry. They provide a range of NBS specification products, which are complemented by product and manufacture information as well as a range of technical guidance, books and contracts.

Document Status Indicators

Green The Green document status indicator indicates that the document is:
  • (a) current in the Construction Information Service and
  • (b) the latest version - ie it does not have any other documents that replace or amend it and is promoted as a current document by the publisher.
Amber The Amber document status indicator indicates that some caution is needed when using this document - it is either:
  • (a) current in the Construction Information Service but has a document or documents that replace or amend it, so please look at the "Newer Versions" tab or
  • (b) not in the Construction Information Service but with another reason why it may be relevant to our customers such as being cited in NBS or in the Building Regulations Approved Documents. Again there may be more recent versions of the document.
Red The Red document status indicator indicates that the document is an old version
  • The document has likely been withdrawn by the publisher, also the meta data presented here may be out of date as it is no longer being maintained by the editorial teams at NBS.