Attic Concrete Chimney Fire Blocking Old Homes
They are more subject to cracking leaning and leaking.
Attic concrete chimney fire blocking old homes. Most any problem you can imagine. Block chimneys do work but as a general statement they are less than desirable. Since the space between the studs may vary each reinforcing fire block may need to be individually cut. After a fire has been put out by the fire department they may say the house is basically safe structurally or that it is not safe and the city building inspector checks the house for safety.
But imagine what happens if you do put a solid piece of wood at the bottom and top of the wall in between all of the wall studs in this house. We then allow this concrete like material to harden and then remove the blocking from the fireplace damper. Block chimneys are really meant to be surrounded with bricks. During a remodel of this type of house it is wise to install fire blocking at the top and bottom of the stud walls.
If fire blocking or stopping is not in place the space between each of the wall studs acts like its own high velocity chimney. Basically have your chimney lined as soon as possible. The bottom block stops the fire from getting into the wall cavity to begin with. You can think of it like we re filling the smoke chamber with concrete.
Draft fire blocking fire departments in the united states respond to more than 350 000 home structure fires each year according to the national fire protection association. Fire blocking between studs. On average seven people died in home fires every day between 2011 and 2015. Attics may be painted white to cover over evidence of a fire in the attic or home.