Hello there, first off I must thanks all that contribute to this forum. I've picked up so much info since I bought my house & decided to start burning.
That leads me to my problem/question:
I'm planning on having a Jotul C450 installed in my masonry fireplace which is on the inside wall of my living room. (see photo attachment)
The hearth is currently flush with the floor, I plan on raising by 1.5"-2".
I removed the aprox 1" of bluestone that was set into aprox 1.5" of concrete mud and am down to aprox 2.75" poured, reinforced concrete which is set over flooring studs & wood planks.
The Jotul manual calls for appropriate hearth protection of r2.92. (see photo attachment)
Now I've read that the following two methods will both work well. Considering that I have to start on a concrete slab, which is the better way to go to achieve the appropriate r value? Either method will get me well clear of the required 2.92.
A) steel studs, air channel, and .5" Durock layers
B) A 'sandwich' method of .5" Micore 300 and .5" Durock layers
If I choose method B, how many layers of Durock can be stacked on top of Micore without squashing the product or is this not a problem? Also, should I drop a layer of .75" plywood on top of the concrete slab so that I have a substrate for the Durock to attach via Durock screws?
Thanks,
Sal
That leads me to my problem/question:
I'm planning on having a Jotul C450 installed in my masonry fireplace which is on the inside wall of my living room. (see photo attachment)
The hearth is currently flush with the floor, I plan on raising by 1.5"-2".
I removed the aprox 1" of bluestone that was set into aprox 1.5" of concrete mud and am down to aprox 2.75" poured, reinforced concrete which is set over flooring studs & wood planks.
The Jotul manual calls for appropriate hearth protection of r2.92. (see photo attachment)
Now I've read that the following two methods will both work well. Considering that I have to start on a concrete slab, which is the better way to go to achieve the appropriate r value? Either method will get me well clear of the required 2.92.
A) steel studs, air channel, and .5" Durock layers
B) A 'sandwich' method of .5" Micore 300 and .5" Durock layers
If I choose method B, how many layers of Durock can be stacked on top of Micore without squashing the product or is this not a problem? Also, should I drop a layer of .75" plywood on top of the concrete slab so that I have a substrate for the Durock to attach via Durock screws?
Thanks,
Sal
