Do they sell green board any more or have they all switch to that new mildew mold resisance , its like a yellow board.
Do they sell green board any more or have they all switch to that new mildew mold resisance , its like a yellow board.
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Replies
mildew mold resisance , its like a yellow board.
If it's yellow, it's likely "Dens"; either Denshield or Densglas; which is superior to g/b in almost every way.
Like being able to span 16" vertical or horizontal. I always wind up checking the web page, one product is water-resistant (better than the moisture-resistant g/b); the other is exterior-rated as a underlayment for eifs.
Denshield is a tile backer board that has a stippled finish on the face, it is grey in color and requires NO vapor barrier behind it, the face is water-proof. Densglass is yellow with a smooth finish and is for exterior use on eifs systems (as Mac mentioned). If your tiling, use Denshield where the tile will go, and any of the smooth finish boards that suits you, including green board, just overlap the tile (slightly) onto the greenboard(or whatever board you choose) area, then you can prime/paint the greenboard.
The reason for NOT using greenboard is that the tile allows water to become trapped behind the tile and eventually degrade the greenboard. GB is perfectly fine when used as a finished wall material with primer/paint, but it's no good as a tile backer, and neither is cement board (in a wet area like a shower), IMO.
Geoff
You can still get it here but most yards have changed to yellow.
You can get both here in DE - no problem on either.
Jim
Never underestimate the value of a sharp pencil or good light.
I bought a sheet of that yellow board, that stuff aint smooth like green and white. How do they get a smooth paint surface.
Don't know - never used it. I'm still using green board - 1/2" on walls, 5/8" on ceilings - 16" oc. Tile backer behind tile.
Skim coat maybe? Sounds like a lot of work.
Maybe somebody will tell us both!
Jim
Never underestimate the value of a sharp pencil or good light.
Poked around today at stopfeedingmold.com - a GP website with a FAQ section, installation instructions, etc. found the following (paraphrased) under painting / finishing for DensArmor paperless drywall:
>>The Gypsum Association recommends a Level 5 finish when gloss, semi-gloss, enamel or flat non-textured finish is applied or wherever a severe lighting condition occurs.<<
Translation: ya gotta skim coat it or texture it somehow!
Jim
Never underestimate the value of a sharp pencil or good light.
you know that stuff smells.
Good, bad, or just different?
Jim
Never underestimate the value of a sharp pencil or good light.
purple board has replaced green board. It has a smooth finish and is good for bathrooms, but not in showers. Use denseshield or hardibacker behind tile.
I heard that all g.b. will be gone within the next year.
There are only 2 companies making it now; the 3rd one quit earlier this year.
By the end of 2008 it is all supposed to be switched over to the yellow type board.
At least that's what my supplier told me.
sully
USG is how selling a product called "Mold Tough", I think. Still is paper faced (treated), has no fiberglass, and is still green :)
I think National Gypsum is making a purple faced board similar to the Mold Tough - XP or something like that?
Justin Fink - FHB Editorial
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