I have a room that has one brick wall and 3 osb painted walls (which we detest). I would like to do something/anything to these 3 other walls to have some uniformity in the room....so I bought some mortar mix and spanish rock. Is it possible to put the mortar mix directly on the walls or should I seal it or remove the osb altogether?
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I'm not sure if osb needs a sealer, but I do know you'll probably need to fasten some wire mesh to the osb to 'anchor' the mortar to the wall.
I just completed a similar project and most manufactruers of the cultured stone recommend a vapor barrier such as tar paper. You then attach a metal lath with galv nails to the wall/OSB preferably fastening into the studs. A scratch coat of motar is applied and allowed to dry for 24hrs. Then the rock mortered onto the wall.
You'll be pleased with the results.
You'll be pleased with the results.
