I was wondering if anyone has seen cultured stone put over 1" blueboard. There is no OSB or plywood under the blueboard. Just the 1" blue nailed to the studs and taped off with tyvek tape. I was wondering if this was safe to do because of the weight issue. Usually when I hang my wire mesh I use 1" roofing nails and nail the bejeezus out of it to plywood or OSB. I'm afraid that just nailin this stuff to the studs isnt going to provide adequate support for the weight of scratchcoat and stone once it is all put on. Has anyone seen this before or heard of it being done. I have my reserves of doing it this way but... Any input would be appreciated. It originally was going to be brick but they said they couldnt afford it. Then 3 weeks later the GC said they were switching to cultured. More money per sq for material and labor. Figure that one out.