Fire Blocking In Stud Walls

Fire blocking in stud walls is required in wood framed buildings to stop drafts in the cavities between framing members.

Fire blocking in stud walls.

Smoke and gases readily travel horizontally as well so preventing horizontal air movement such as within a dropped ceiling has its own name. In other words these cavities can act like the flue on a fireplace and actually promote the rate in which a fire could grow. Fire blocking is a blocking device inserted between the top plate of your exterior wall and the exterior masonry 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.

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. Horizontal basement wall fire blocking fire blocking must also be installed every 10 horizontally along the wall irc 302 11 1 2. Here we see a soffit similar to what you see above. 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.

Done with stud walls in basement and realized i had not planned for fire blocking. Blocking to reduce stud slenderness ratio. Trying to get it above and behind my top plate. Stair stringers if the area below the stair is unfinished fire blocks are required 1.

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. 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. Was trying too hard. 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.

These spaces can create drafts that will allow fire to spread readily if not dealt with. Fire blocking strategies far left. The ftb is thoroughly engineered for 12 16 and 24 stud layouts and has pre punched guide holes and precut flanges to fit the stud cavity for quick installation. 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.