OPTION 2. ENVELOPE COMMISSIONING (2 POINTS)

The list would probably vary depending on the envelop construction. There are a variety of commissioning and building science firms who would carry out these tests. The 10 month review has been a requirement of enhanced Cx for quite a while. Basically the Cx needs to revisit the project near end of warranty to ensure that everything is still working correctly. This review is not as thorough as the initial Cx but should provide a significant degree of assurance that the systems continue to function properly. The Reference Guide does not contain much but does reference the NIBS Guideline 3–2006 2012 Building Enclosure Commissioning Process BECx which is a free download that seems to provide some guidance.

Envelope Commissioning is a very specialized service, and I will work to find a colleague that could monitor and help with these kinds of questions. Seasonal testing in a general commissioning meaning relates to tests which are best done in an intended season. I think in the case of envelopes, it would be when can tests be done in a most meaningful and impactful time. For example, doing a thermal image in spring and fall will not tell you much. You need larger temperature differences to see actual performance. The 10-month review is just that. Discussing the performance of the envelope systems at 10 months and to assist the owner in determining if there are follow-up testing required or other intervention or warranty work by the contractors. There is no specific requirement to DO more tests at 10 months.