An HVAC make-up air duct penetrates an insulated metal panel wall and includes a continuous vapor retarder taped to the duct all around. Continuous sealant is installed behind the duct flange and secured with rivets all around per mechanical specifications. A make-up air damper, filter, and grill are integrated per mechanical contractor requirements.
INTERIOR WALL PANEL, PVC IMP WALL RE: TYP IMP WALL PENETRATION FOR MORE INFO MAKE-UP AIR DAMPER DUCT PER MECH CONT VAPOR RETARDER, TAPE TO DUCT ALL AROUND MAKE-UP AIR DAMPER, FILTER, AND GRILL PER MECH CONT SEALANT BEHIND FLANGE AND ALL AROUND RIVETS ALL AROUND PER MECH PER MECH
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