Floor Ceiling Fire Blocking Details

Plywood covering any seams.

Floor ceiling fire blocking details.

The drywall that is your ceiling is a form of fire blocking. The intent is to contain a fire within the wall cavity to a small area and to impede the fire from freely migrating to other connecting con cealed spaces. Shed porches that attach to a tall wall at the ceiling and the roof line. It s purpose is to prevent the spread of smoke and flames from reaching the bottom of the 1st floor of your home from the basement area thereby burning through and spreading to the 1st floor of the home.

Knee walls how to handle upper story knee walls depends. Fur downs including drop down tray ceilings. We provide a comprehensive portfolio of fire smoke. Bonus rooms if the floor level ties into a stud wall.

One layer of 3 4 in. Step 4 fire blocking floor and ceiling openings all penetrations through the plates on a wall must be sealed with a foam caulk or insulation that is fire rated. The stud walls at soffits and drop ceilings and at the top and bottom of stair stringers etc by fireblocking. The blocks must be as wide as the wall.

The most often used product is a expanding. With cathedral ceilings the double top plates serve as fire blocking. Particleboard covering any seams. Any time a duct plumbing pipe or electrical wire goes through a floor or ceiling it must be sealed around it with some type of fire stop.

Materials for fire blocking. Material for fire blocks. Dwg pdf non fire rated smoke partition cp 572 smoke and acoustic spray comprehensive drawing 8 26 15 dwg pdf non fire rated smoke partition cs sl sa smoke and acousic sleeve comprehensive drawing 8 16 15 2 3 hr drawing type hour rating hilti cad details firestop revised june 16 2016. Materials approved for fire blocking are just common building materials.

Fire blocking is a blocking device inserted between the top plate of your exterior wall and the exterior masonry wall. Typically inspectors are looking for fire blocking in the gaps between the foundation wall and the framed wall of your basement specifically at the top of that wall area. Two layers of 1 by lumber. Confusion about how to protect pipes and similar penetra.

Through penetrations we have a broad innovative line of caulks putties sealants foams devices and large opening solutions for mechanical electrical and plumbing mep penetrations and membrane applications. Here we see a soffit similar to what you see above cabinets in which the opening to the floor ceiling assembly occurs below the top plate. For a 2 x 4 wall use a 2 x 4 block for a 2 x 6 wall use a 2 x 6 block. One layer of 3 4 in.

Fire blocking designed to slow down the spread of fire from one floor of your house to the next. We had to install fire blocking every 10 verti cal feet in these tall bays.