Cast stone veneer the next EFIS

[Chris Bernhardt]

Every cast stone veneer job I run across is completely detailed wrong.

My understanding is that the product can absorb a ton more water than any other cladding system on the market.

Only in this case it's going to be harder than hell to detect moisture behind it since its self retains so much. What are we going to do, drill holes thru it and insert probes?

Can we based on our EFIS experience logically conclude that a wall is a goner if the cast stone veneer is not detailed properly?

I have read on JLC by one installer that the details are even more critical than stucco installations.

Anyone else wondering about how were going to figure out whats going on behind the stuff?

Chris, Oregon

[Scottpat]

The waterproofing of the structure comes from the underlayment and the flashing, in other words the details. So I would say Yes, you could use the same knowledge and apply it to cast stone cladding.

[Jim Katen]

Originally posted by Chris Bernhardt

Every cast stone veneer job I run across is completely detailed wrong.

My understanding is that the product can absorb a ton more water than any other cladding system on the market.

Only in this case it's going to be harder than hell to detect moisture behind it since its self retains so much. What are we going to do, drill holes thru it and insert probes?

Can we based on our EFIS experience logically conclude that a wall is a goner if the cast stone veneer is not detailed properly?

I have read on JLC by one installer that the details are even more critical than stucco installations.

Anyone else wondering about how were going to figure out whats going on behind the stuff?

Chris, Oregon

I think it won't be as bad as EIFS or even as bad as conventional hardcoat stucco because the "stone" is so porous. It conducts water both ways.

I've yet to see it installed per the Owens Corning specs.

- Jim Katen, Oregon