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nclay

New Member
Sep 23, 2008
1
Montana
Hello all gurus of hearth building.

I am attempting to build a vented wall out of wonderboard in a corner to reduce clearances. I understand using the non-combustible spacers to support this wall. I wish to add slate as the final aesthetic touch and am confused as to how the wall will be supported when this vented wall is "floating" 2 inches from the floor surface and it's recommended that spacers and screws not be attached directly behind the stove. Will it hold? Is there a better option instead of using just spacers and screws?

Thanks for your wisdom and help-

Noah
 
I wouldn't worry as much with the spacers screws behind the stone. The slate and thinset will diffuse some of the heat before it hits the screws. It's important to support the weight of the slate. Use doubled-up, full height, 3" strips of wonderboard as the spacers and attach to the studs. Skip the stud at the point where the back of the stove is closest to the corner wall.
 
I just went through this exercise, and what I did was to use a piece of 1/8 X 1/8 X 1" angle iron, with 1 1/4" legs welded to it about every 20".
The Durock and tile sit on it so only the 1/8" bottom shows from the front.
I used 1 1/4" ceramic fence post spacers, toggle bolted to the wall, so that there was no direct connection to the studs.
After going through all this trouble, I looked at the Durock website and saw their very simple detail for a thermal wall shield.
It has you nailing double-layer 4" strips of 1/2" Durock over all the studs, then nailing a shield of 1/2", and your choice of finish covering.
I think my way would ultimately be better, but way more work than it was worth. Just my $.02
 
can you diagram what you mean? I ahve seen many people put some bricks or teh like atav couple places to support it a bit at the bottom.. as long as it is mostly floating it will eb fine
 
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