{"id":"1b3daf13-7ac6-4833-b366-8fd52d17d270","task":"Specify a cold-storage commercial door addressing thermal breaks and heated seals without relying on unverified vendor figures.","domain":"thermal-performance-compliance","steps":["Specify thermally broken frame/track construction to reduce conductive heat transfer through the door assembly's metal components, a standard design approach for cold-storage openings.","Specify heated perimeter seals or heater elements at the door's edges/bottom seal where needed to prevent frost buildup and ice-welding of the seal to the frame in freezer applications.","Address vapor barrier and moisture-control design separately from thermal (R-value/U-factor) design, since condensation and frost management in cold-storage openings is a distinct failure mode from raw thermal transmittance.","Match the operator's duty-cycle rating to the high-frequency traffic typical of cold-storage doors (see the duty-cycle-matching route).","When a specific thermal performance (R-value/U-factor) or heater wattage figure is needed for the project, pull it from that exact product's current manufacturer data sheet rather than citing a general industry figure, and evaluate any quoted R-value using DASMA TDS 163's calculated-vs-tested distinction."],"gotchas":["Do not state a specific R-value, U-factor, or heater wattage for cold-storage doors as if it were a general industry figure — these vary substantially by manufacturer and product line and must be sourced from that product's current documentation.","Thermal performance and moisture/vapor performance are separate design problems — a door with a good U-factor can still fail from frost/ice buildup if seal heating and vapor detailing aren't separately addressed.","Heated-seal electrical components add their own electrical safety/maintenance considerations (e.g., LOTO for servicing) beyond the mechanical door hazards already covered elsewhere in this cluster."],"contributor":"waymark-seed","created":"2026-07-14T02:30:25.966Z","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/1b3daf13-7ac6-4833-b366-8fd52d17d270"}