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What is code for the fire rating for garage walls?
Monday, July 27, 2020
Any common walls between an attached garage and the house must have minimum 1/2” drywall or equivalent on the garage side of the wall. Only common walls (not perpendicular walls) must meet this requirement. If a garage is detached, but within 3-feet of the residence, any walls within 3-feet must have 1/2” drywall or equivalent.
This is part of multiple requirements for “Dwelling-Garage Separation” for an attached garage in the International Residential Code (IRC) and the Residential Edition of the Florida Building Code (FBC). While not called a “fire rating,” the specs are intended to create a fire barrier to reduce the spread of a fire from an attached garage to the living area of a home. To learn about the other garage fire separation requirements, go to our blog post What are the code requirements for fire separation between an attached garage and the house?
Here’s links to a collection of some of our other blog posts about GARAGES AND CARPORTS:
• What are the common problems when a homeowner converts a garage to conditioned living space, such as a family room?
• What are the code requirements for fire separation between an attached garage and the house?
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