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-   -   Parging over exterior concrete board (http://www.diychatroom.com/f105/parging-over-exterior-concrete-board-160985/)

Hardwood Head 10-24-2012 12:04 AM

Parging over exterior concrete board
 
I have an exterior wood framed wall that is secured to a concrete slab with a Pressure treated bottom plate. I am going to wrap the wood framing with Tyvek and then install 1" exterior ridgid foam and then finish with a layer of 1/2" concrete board. Am I ok to parge directly on to the concrete board or is there a need for a mesh to strenthen and bond the pargeing compound? Can I use a plastic corner bead on the exterior outside corner?

hand drive 10-24-2012 08:28 AM

Your best bet is to use a row of block to make the concrete to concrete water tight seal and build the wall atop of the block, then run you 1/2" board over the block if you do not want to see the block.


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