Is there anyone here who has used a product such as Cultured Stone or other “fake rock”, lightweight concrete product, and used it on an ICF wall? If so – how did you make it stick, and how is it holding up?
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Jon,
It depends on the type of ICF. Lightweight stuff can be directly mortared to a Rastra-type wall, but straight foam ICF blocks are going to need metal lath screwed to the ribs and a base coat of stucco applied (and allowed to cure) before setting any stone.
Bill
Large head screws or washered screws hold expanded wire lathe to th eICF, then a scratch coat of mud, then your cultured stone and grout
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Not to push a competitor's product, but JLC had an article with in the last 18 months describing doing just that - direct application of fake stone to icf walls.
I think the search function at JLC works so you should be able to find the article.
OK, found it: Installing Manufactured Stone Over ICFs
July 2005
By Stephen Minster (4 Pages)
Edited 5/31/2007 4:42 pm ET by MELaw