ENGINEERS Conquest Firespray Cites Broad Non-Compliance with International Building Code for Fire-Rated HVAC Assemblies Fire-Rated HVAC Assemblies MUST be tested for fire inside and fire outside in horizontal and vertical configurations. Ceramic wrap and horizontal drywall as used in horizontal ventilation applications are not compliant.Important Fire Safety Training Click Here to Sign Up for Our Engineer's Webinar Our live training webinar provides 1 Professional Development Hour for AIA, and ICC. Watch Our Video Now! Read our press releases and trade news coverage of this fast-moving issue. Stay informed – don’t compromise life safety! "I've learned enough!" Contact us now!