Garage Attic Firewall

If the ceiling material is fire rated the firewall can terminate at the ceiling.

Garage attic firewall.

Typical garage attic access at least in the majority of chicago land homes including new construction is a square drywall section usually set on four pieces of trim. Most garages have a ceiling secured to the bottom chord of the roof trusses or rafters and that has to be 1 2 drywall also. This also applies to structural members and this extends to the attic in a common sense type of way. Drywall joints shall be taped or sealed.

Walls and ceiling the wall between an attached garage and the house living area is required to be minimum 1 2 drywall. In such case the attached garage firewall house separation wall should extend all the way to the roof decking or garage section should have a 5 8 drywall ceiling installed. The wall between a house and garage must be separated by 1 2 drywall. If the garage has no ceiling the firewall between the house and garage must extend from the floor all the way up to the underside of the roof deck.

The garage needs to be separated from the house. Protect garage firewall if installing ladder. Twitterfacebooklinkedingoogle modern construction standards require fire separation sometimes called a firewall in an attached garage to separate the garage from living space and or an attic. When the garage is finished and no framing members are exposed the ceiling of the garage should be covered with 5 8 inch thick fire rated drywall.

In one story houses this is necessary when the attic space over the house and garage are open and there is no firewall between the space over the garage and over the house. It can consist of 1 2 inch gypsum drywall.