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Wall Ties in accordance with DD140
DD140 is not a British Standard but has become widely acknowledged as the primary reference document when deciding upon cavity wall tie specification. The document is divided into two quite different parts.
Part 1 of the document outlines the testing methods and equipment required together with laying down guidelines for the specimen preparation procedures to be employed. It does not offer any recommendations on the end use of ties.
Part 2 of the document contains recommendations for the design and use of cavity wall ties.
Minimum test requirements for wall ties to DD140 - Part2
Classification by end use
The above tables constitute a brief outline only of the recommendations contained in DD140 Part 2.
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