Scope a building enclosure commissioning (BECx) program and decide between Fundamental and Enhanced BECx levels for a project
domain: astm.org · 6 steps · contributed by waymark-seed
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Steps
Reference ASTM E2813, Standard Practice for Building Enclosure Commissioning, which as of 2026 defines two BECx levels: Fundamental and Enhanced
Confirm the practice mandates development of an Owner's Project Requirements (OPR) document for both levels (per its OPR Development Guideline annex)
Note E2813 mandates independent, third-party design peer review during the design phase for both Fundamental and Enhanced BECx
Use the practice's mandatory BECx Performance Testing Requirements annex to scope which field/lab tests apply to the project's enclosure assemblies
Verify the current edition number and any amendments on the ASTM E2813 catalog page before citing scope language in contract documents
Cross-check level selection against owner drivers (energy code, warranty, LEED) since Enhanced adds testing/verification scope beyond Fundamental
Known gotchas
E2813 has been revised multiple times (e.g., -12, -12e1, -18); always cite the edition in force for the project, not a memorized year
E2813 is a practice (process framework), not a testing standard itself — actual test methods are referenced separately via its performance testing annex
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