Texturing a painted barnwood wall

My husband and I have a rental to fix up. There is an unsightly wall of painted barnwood. We cannot remove the barnwood as there is a cement basement wall behind it. We were thinking of applying one of the new textured clays or epoxys which can be applied with a trowel. Any suggestions regarding best material to use? We would like the finish to be thin and durable. Part of the barnwood goes beside and behind the kitchen stove, so the wall finish must be washable and heat resistant.