UpCodes logo
Jump To Full Code Chapter
Sound ratings for fans used for whole building ventilation shall be rated at a maximum of 1.0 sone.
Exception: HVAC air handlers and remote-mounted fans need not meet sound requirements. There must be at least 4 feet (1220 mm) of ductwork between the remote-mounted fan and intake grille.

Related Code Sections

R403.6.4 [RE] Residential Energy Efficiency, Sound Rating
Sound ratings for fans used for whole building ventilation shall be rated at a maximum of 1.0 sone. Exception: HVAC air handlers and remote ...
R403.6.4 [RE] Residential Energy Efficiency, Sound Rating
Sound ratings for fans used for whole building ventilation shall be rated at a maximum of 1.0 sone. Exception: HVAC air handlers and remote-mounted ...
Section AK104 Sound Transmission, Referenced Standards
Machine AK103 The Masonry Society TMS 0302—12 Standard for Determining the Sound Transmission Class Rating for Masonry Walls ...