The Task Group has had feedback from practitioners that have been using this standard that aspects of the required WVP testing are cumbersome when used on a frequent and repeated basis and that results have not always been consistent. The alternative procedure introduced in this Appendix seeks to simplify the repetition of WVP testing by allowing comparative WVT tests, which are simpler and less restrictive to run, that reference a single sample for which the WVP has already been established. This procedure also allows for comparative testing of mortar in contrast to samples of masonry unit materials in order to make rational decisions as to their relative compatibilities within a given masonry assembly.
Date Initiated: 12-12-2017
Technical Contact: John Wathne
Item: 003
Ballot: C12.03 (18-01)
Status: Will Reballot Item
Item: 002
Ballot: C12 (22-02)
Status: Negative Votes Need Resolution
Item: 001
Ballot: C12 (22-02)
Status: Negative Votes Need Resolution