The old way treated the two dwellings within the two family dwelling as separate structures i e similar to townhouses which are separate structures in that the fire partition had to extend to the roof etc the new way treats them as two dwellings in a multi dwelling single structure i e similar to condos.
Firewall attic sun.
The garage shall be separated from the residence and its attic area by not less than 1 2 inch 12 7 mm gypsum board applied to the garage side.
There is nothing that states a firewall should be run thru thru attic.
Garages beneath habitable rooms shall be separated from all habitable rooms above by not less than 5 8 inch 15 9 mm type x gypsum board or equivalent.
Specifically i was wondering about the attic area above the living room which used to be the garage.
Since our insulation is fiber free no protective garments or respirators are required.
I had to get them to stop as it didn t follow the boundary of my wall downstairs and so i don t think it would count as a firewall and not to mention it cuts a few square meters out of my attic.
The secretary of the management company and my neighbour took it upon themselves to start building the firewall to save money.
But that s another story.
I am not aware of a an attic firewall in a single family home.
I am wondering if the old rules apply now that the garage is a part of the home and can no longer hold a car.
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The fire separation wall has another whole cut in the attic for the ac duct to go through to the living room.
Two opposing and offset studded walls create an 8 cavity into which frm 100 is spray applied.
Somewhere under the sun.
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Some time ago in my single family home ranch style we converted the open breezeway between garage and house to a closed den at that time 89 the contractor was required to provide sheetrock fromfloor to r.