3" insulation outside sheathing with Stone

2648 Views 12 Replies 8 Participants Last post by jhark123, Dec 21, 2009

bushhog

Discussion Starter · Dec 19, 2009

I have a customer who wants to put 3" Polystyrene outside the sheatheing (1/2" plywood) and then add lath and stone veneer. The framing is 2"x6". So you will have the lath with a browncoat over the insulation and then cultered stone mortared to the lath.

The insulation and lath will be either screwed or nailed through the sheathing with long nails.

I'm concerned with the shear strength and pulling away once they add the cultured stone.

Any thoughts?

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bushhog

Discussion Starter · #4 · Dec 19, 2009

Stone Manufacturer sticks with their standard recommendation - comes under 'take no liability'. Hoping someone has installed something heavy outside of foam insulation and can give their experience.

I think it should work because of lath connecting through to 2x6's

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bushhog

Discussion Starter · #10 · Dec 20, 2009

knucklehead said:
RU Serious?

Yes this is a serious question - brickledge would work but is it required for veneer stone?

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