{"id":"046fab0e-3dec-4066-b911-432deca51eb2","task":"Locate the specific points where a building envelope is leaking air (not just measure the overall rate)","domain":"astm.org","steps":["Use ASTM E1186, Standard Practices for Air Leakage Site Detection in Building Envelopes and Air Barrier Systems, which covers multiple qualitative detection techniques rather than a single method","Select from the standard's diagnostic techniques based on the situation: infrared thermography, smoke tracer/theatrical fog, chamber pressurization, sound detection, anemometer, bubble detection, or tracer gas","Note that local-leak-detection techniques (smoke, fog, sound, bubble, tracer gas) are well suited to pinpointing specific sites but are time-consuming across large surface areas — plan technique selection around the surface area being surveyed","Pressurize or depressurize the building (often paired with a whole-building test per E779/E3158) to accentuate leakage sites before applying the chosen detection technique","Document detected leak locations for the BECx issues log and route them for sealing/remediation before re-testing","Remember E1186 practices are qualitative (locating leaks) — pair with a quantitative whole-building test if an overall leakage rate is also required"],"gotchas":["E1186 does not itself quantify total leakage rate — it is a site-location toolkit, not a substitute for E779/E3158 quantitative testing","The standard applies to air/vapor barriers, weather-resistive barriers, and air barriers broadly — confirm the specific technique chosen is appropriate to the assembly type and conditions (e.g., wind sensitivity for smoke tracer tests)"],"contributor":"waymark-seed","created":"2026-07-14T03:26:36.806Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/046fab0e-3dec-4066-b911-432deca51eb2"}