The interior walls and ceilings also have a 1-hour firewall.Īnything Else I Should Know about Where I Need Fire Code Drywall? Attached housing typically has a 2-hour firewall where the homes share a common wall. Detached single family homes typically have a 1-hour firewall where required. This drywall is fire code compliant and much stronger. In these instances, building code requires a more robust 5/8-inch drywall with glass-mat. In some circumstances, special drywall is installed.It’s really important to understand that simply using 5/8-inch drywall or 5/8-inch lightweight drywall is not fire code drywall. The most common firewalls use 2×4 or 2×6 wood framing with 5/8-inch Type X Fire Code drywall to enclose.Most Orange County homes are built using wood construction. For the purpose of this essay, we’ll only be addressing wood constructed walls. Yes, there are multiple kinds of firewalls and different types of materials to build them. As you can imagine, this is a deadly scenario. If a fire started inside your home or that of your neighbor, the fire and smoke would move quickly from one side to the other. Zero Lot Lines and Attached Housing Walls.This leaves you with no ability to move safely from the second floor to outside. If a fire were to start or move to the area where the stairs are located, standard 1/2-inch and 5/8-inch drywall will simple burn. For homes with a second story or floor, access is by stairs. Provided you have properly installed and working smoke alarms, a firewall provides those critical minutes to get safely out of the house. When a fire happens, time is of the essence for survival. Sometimes, this “controlled fire” becomes “uncontrolled fire”, leading to a house fire. All of these items use fire in a controlled environment (combustion). Also includes the lawn mower, motorcycles, camping equipment (stoves), etc. These include cars, furnace, hot water heater, and washer/dryer. Inside the garage you typically find combustible items. Let’s look at a few common examples where you need fire code drywall. This allows you and your family time to safely evacuate the premises. The concept behind a firewall is to slow the spread of fire. A firewall will not stop or prohibit a fire. Walls and ceilings inside furnace and water heater closets.Ī firewall’s purpose is to keep you and others alive by slowing the spread of fire. In high fire hazard areas, all ceilings and outside walls of the house.
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