// CODE SNIPPET
504.6 Gypsum Wallboard Ducts
JUMP TO FULL CODE CHAPTER
Bathroom and laundry
room exhaust ducts shall be permitted to be of gypsum wallboard
subject to the limitations of Section 602.5.
Related Code Sections
504.6 Exhaust Systems, Gypsum Wallboard Ducts
Bathroom and laundry
room exhaust ducts shall be permitted to be of gypsum wallboard
subject to the limitations of Section 602.5 ...
California Mechanical Code 2016 > 5 Exhaust Systems > 504.0 Environmental Air Ducts > 504.6 Gypsum Wallboard Ducts
504.6 Exhaust Systems, Gypsum Wallboard Ducts
Bathroom and laundry
room exhaust ducts shall be permitted to be of gypsum wallboard
subject to the limitations of Section 602.5 ...
California Mechanical Code 2019 > 5 Exhaust Systems > 504.0 Environmental Air Ducts > 504.6 Gypsum Wallboard Ducts
722.5.1.2 Fire and Smoke Protection Features, Gypsum Wallboard Protection
with Type X gypsum wallboard shall be permitted to be determined from the following expression: (Equation 7-12) where: R = Fire resistance ...
California Building Code 2016 (Vol 1 & 2) > 7 Fire and Smoke Protection Features > 722 Calculated Fire Resistance > 722.5 Steel Assemblies > 722.5.1 Structural Steel Columns > 722.5.1.2 Gypsum Wallboard Protection
722.5.1.2 Fire and Smoke Protection Features, Gypsum Wallboard Protection
with Type X gypsum wallboard shall be permitted to be determined from the following expression: (Equation 7-12) where: R = Fire resistance ...
California Building Code 2019 (Vol 1 & 2) > 7 Fire and Smoke Protection Features > 722 Calculated Fire Resistance > 722.5 Steel Assemblies > 722.5.1 Structural Steel Columns > 722.5.1.2 Gypsum Wallboard Protection
602.5 Duct Systems, Gypsum
Where gypsum products are exposed in ducts
or plenums, the air temperature shall be restricted to a range
from 50°F (10°C) to 125°F (52°C ...