We would use a washable matte paint. Any shine on these walls will highlight the texture. Washable matte will give you the ability wash and touch up.
I imagine the labor to remove this would be high and then you would have to repair it before painting.
I have been asking everyone in Phoenix what iz the reason for the textured walls. I'm painting this CRAP right now. You can't get a straight line anywhere. You get paint on different color trim, you will end up touching up all day, forever! I've been told it saves time when they first do it. That may be, but from then on it will add a 1/3 more in materials everytime you do something, patch, paint. And it has to be another 1/3, at least in time. If it doesn't, it's because the painter did a CRAPPY job. Another thing with the skip trowel texture is it is a dust catcher. Wash a portion of it and then look at your water. It will be filthy. And for any builder to say it will cost more he is blackmailing you. Scaring you so he can make his money, then cost you big time the life of the house. The person who first did this must have basketball sized nuts.
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