05:50PM | 03/15/03
Member Since: 03/14/03
1 lifetime posts
I am redoing my bathroom, and am wondering am I able to install new drywall “greenboard” over the old wall material that is there? The room has evidently been done numerous times in the past. The existing material is what appears to be a plastic type wall covering about 1/8” thick, similar to what you would find in the shower area of a very old mobile home, over top of 1/8” thick smooth paneling. I am removing the first layer, and I was going to go down to the studs, but then I have the blown in insulation falling out. Looking at the GP web site, it states, “Old wall material must be perforated sufficiently to prevent a double moisture barrier”. Am I going to run into problems if I do not remove both layers of wall material?


06:26AM | 03/16/03
Member Since: 12/27/02
545 lifetime posts
If I were you I'd remove the existing. If moisture gets trapped between that and the layer your adding it can create more problems than it's worth. Plus you want to make sure you get good contact if you are tiling.

When you do take off the existing do one wall at a time & place 6 mil poly stapling it up in sections and working with the blown that way. It will be less of a problem it should only be in the exterior walls at any rate. You need the vapor barrier in those locations anyway,(unless you're in the deep south then use landscape cloth). It's the interior walls that really need to breath, the exterior you want to protect from the flucuations in temperature creating moisture at the dew point.

See if you can get into the attic and move the blown from the ceiling, you can put it back when you're done. Wear a good respirator up there. That needs a vapor barrier as well.



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

Making this trio of storage totes is simpler than you might think. Gold screw bolts and spray adhesive hold the fabric cov... Built on a rocky island in the Drina River, near the town of Bajina Basta, Serbia, this wooden house was cobbled together ... Large steel-framed windows flood the interior of this remodeled Michigan barn with daylight. The owners hired Northworks A... Edging formed with upside-down wine bottles is a refreshing change. Cleverly and artistically involving recycled materials... A Washington State couple called on BC&J Architects to transform their 400-square-foot boathouse into a hub for family bea... Similar to the elevated utensil concept, hanging your pots and pans from a ceiling-mounted rack keeps them nearby and easy... Few projects are more fun than upcycling a vintage piece in a surprising way. Outfitted with a sink and a delicately tiled... The thyme growing between these stepping stones adds a heady fragrance to strolls along this lush, low-maintenance garden ... Decoupage is an easy way to add any paper design to your switch plate, whether it is wallpaper, scrapbook paper, book page... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Reluctant to throw away any of those unidentified keys in your junk drawer? Hang them from a few chains attached to a simp... A stripped-down model, sans screened porch, starts out at $79,000. Add the porch, a heated floor for the bath, and all the... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... This garden shed has been decked out to the nines. Designer Orla Kiely created the intimate home for a flower trade show, ...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon