Fire Blocking In Stud Walls

Done with stud walls in basement and realized i had not planned for fire blocking.

Fire blocking in stud walls. In other words these cavities can act like the flue on a fireplace and actually promote the rate in which a fire could grow. These spaces can create drafts that will allow fire to spread readily if not dealt with. F ire blocking aims to prevent or at least slow the vertical movement of flames smoke and gases by sealing off concealed spaces like stud cavities and soffits. Was trying too hard.

Fire blocking between studs. Blocking to reduce stud slenderness ratio. 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. Stair stringers if the area below the stair is unfinished fire blocks are required 1.

This means that every 10 feet along a wall you will need to close the gap between the wall stud and the concrete wall from floor to ceiling. Here we see a soffit similar to what you see above. What a relief to see i can screw it to the underside of the top plate and hit the gaps behind the studs with great stuff fireblock. Soffits floor joist soffit double top plate 2nd flr stud cavity wall ceiling finish 1st flr stud cavity subflooring fire in stud cavity fireblocking added there are instances in which the plates may not provide the protection that they do otherwise.

Wood studs used in light frame wall construction may require horizontally oriented blocking for a number of reasons including blocking at shear panel edges fire blocking and buckling restraint when subject to axial loads. Horizontal basement wall fire blocking fire blocking must also be installed every 10 horizontally along the wall irc 302 11 1 2. In the habitat house we worked in baltimore city two weekends ago the project team installed additional fire blocking in the studs of the house by nailing a 2 4 half way up on the wall. Concealed spaces in walls when a wall is not drywalled or sheathed on both sides which is typical of furred out basement walls and double stud walls there must be a full height fire block every 10 feet horizontally.

This provides some additional fire protection benefits and will slow the spread of a fire up a wall by limiting the amount of. Fire track blocking ftb provides horizontal bracing for studs and joists. Smoke and gases readily travel horizontally as well so preventing horizontal air movement such as within a dropped ceiling has its own name. Trying to get it above and behind my top plate.

Fire blocking strategies far left.