
I'm remodeling my 1950's bathroom which had its walls and ceiling covered in 4" and 12" plastic bathroom tile (the brand of tile is Church). Upon removing a few tiles, we noticed they were adhered to the wall with a tan/brown colored mastic image here. We assumed some likely asbestos content and took all reasonable precautions when removing the drywall surrounding the shower that had this mastic attached to it (sealed off room, coverall suit, HEPA respirator, proper ventilation, wetting during removal, etc.). We could have had it tested, but it wouldn't have changed anything as we were not going to have it professionally abated, so just treated it as containing asbestos.At my current stage, I've removed all the drywall necessary to replace the area around the tub/shower with proper cement-board as a base for tiling the walls. I left the drywall (and tiles) in the other areas for the time being as our plan is to "DIY shiplap" the walls with 8" strips of thin painted plywood. Current state of project.I need some advice on what to do moving forward. Since we are just going to cover the existing walls with shiplap, my thought was to encapsulate the remaining drywall/tile (either over the plastic tile, or remove the plastic tile and over the mastic) with 1/8" luan which would then serve as a flat surface to adhere the shiplap to. I could screw the luan into the studs and/or liquid nail it to the mastic. The existing drywall is 1/2" thick so I would use 5/8" greenboard/cementboard (depending on location) over the drywall free studs to have a relatively even wall thickness throughout the room. The thought here is "why disturb existing potential asbestos and rehang drywall if I don't need to?".The other option of course is to remove the remainder of the drywall and start with bare studs, however the initial removal generated a lot of waste (removing the remainder would be 100% more drywall to remove and dispose of) and the "target walls" are in perfectly fine condition (aside from the mastic).Thoughts? Perhaps I'm missing another option? via /r/DIY http://ift.tt/2rrli0q