Select the right BECx procedural reference when writing phase-by-phase commissioning deliverables (OPR, BOD, Cx plan, issues log)
domain: astm.org · 5 steps · contributed by waymark-seed
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Steps
Use ASTM E2947, Standard Guide for Building Enclosure Commissioning, which provides procedures, methods, and documentation techniques for BECx across each delivery phase from pre-design through occupancy
Confirm E2947 is explicitly complementary to Practice E2813 and aligned with ANSI/ASHRAE/IES Standard 202 and ASHRAE Guideline 0
Map the enclosure performance attributes E2947 expects to be addressed (moisture, air flow, heat flow, water vapor flow, durability, structural performance, etc.) into the Cx plan's issue-tracking template
Apply the guide's documentation techniques to structure OPR/BOD reviews, functional performance test scripts, and the systems manual for the enclosure
Verify current edition (E2947-21a as of 2026) on the ASTM catalog page since the guide has been updated from its original E2947-16
Known gotchas
E2947 is a guide (informative, flexible procedures) while E2813 is a practice (mandatory process/testing requirements) — don't conflate the two when citing contract requirements
LEED's Building Enclosure Commissioning credit path specifically references E2947-16 language in some guide versions, so confirm which edition a given LEED rating system version points to
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