GREENBOARD......Drywall......

[mrvette]

Back about 30-40 years ago, it was VERY common to use Greenboard for showers/tubs/bath/water areas....

that Greenboard was green of course, and water resistant and declared good enough for hanging TILE on, much less painting.....it looked and handles like 1/2 inch drywall, but was green in color of course....

a thead on shower construction here, they overlooked the use of greenboard instead of other heavier stuff for shower tile back board use.....

So what is the latest verdict, the last shower/tub I did here was some 21 years ago, and pardon ME, but I don 't remember what I used for tile backing....

:dance::confused5:

[LATB]

DuraRock or other concrete board in all wet areas behind the tile.
Purple board in all other moisture prone areas.

[mrvette]

DuraRock or other concrete board in all wet areas behind the tile.
Purple board in all other moisture prone areas.

Purple board??? I not familiar with THAT......

what IS it??

[LATB]

Purple board??? I not familiar with THAT......

what IS it??

What's the difference between PURPLE drywall and traditional green drywall? Traditional green drywall (also known as greenboard) is only moisture-resistant. PURPLE drywall, manufactured only by Gold Bond Building Products, is superior because it offers moisture, mold and mildew resistance.

:seasix:

[Tikiman]

Twenty years ago, I was cleaning a shower in our house when I noticed some loose tiles. Decided to do a remodel and started tearing it apart. Green board under the tiles. Apparently, it will pass inspection, but you don't get that many years out of it. Had to cut the tub in half with a reciprocating saw to get it out fo the room. Tore all the green board out. Moved the plumbing to go from tub to shower. And used Durarock in place of the green board.

I would not use green board in any moisture-prone areas.

[vettemed]

I used HardieBoard rather than Durock on the last shower I re-did. Cuts easier and with much less mess/dust. And I coat the entire thing with Redgard moisture barrier before setting tile.

[LATB]

I used HardieBoard rather than Durock on the last shower I re-did. Cuts easier and with much less mess/dust. And I coat the entire thing with Redgard moisture barrier before setting tile.

Yep, I use the Redguard. :yesnod:

[LATB]

Twenty years ago, I was cleaning a shower in our house when I noticed some loose tiles. Decided to do a remodel and started tearing it apart. Green board under the tiles. Apparently, it will pass inspection, but you don't get that many years out of it. Had to cut the tub in half with a reciprocating saw to get it out fo the room. Tore all the green board out. Moved the plumbing to go from tub to shower. And used Durarock in place of the green board.

I would not use green board in any moisture-prone areas.

The purple is good stuff. But I would never use anything other than a concrete board in tile/wet areas.

[Frankie the Fink]

I built a shower in our second house in 1976 and greenboard was the only option, it held up fine for 17 years till we sold and moved; I wouldn't use it today though.

[Yadkin]

I've use Durock for the tub walls under tile when I redid a bathroom in the early 90s and I'm sure it's still there.

When I built my house in NC, 2005 I did green board in all the bathrooms, with one-piece fiberglass showers, and tile at the roman tub (that saw little use).

For my addition/ remodel I used Kerdi Board for the walk-in shower. It's super light (closed foam sandwich), waterproof. Really weird that it actually works.

[Don Rickles]

Never seen a bathroom remodel job that had green board behind the tile that didn't have excessive mold.

I'm stuck right now with my laundry room and kids bathroom remodel....It's all gutted out, and I've found rotted wood under the tub, to the point it rotted away a few joists ends. It's all being headed off and replaced, my job today actually.

But now I want to make a complete new lay out for both rooms and can't seem to figure it out......Need an architect but I'm too cheap!:D

[Yadkin]

Never seen a bathroom remodel job that had green board behind the tile that didn't have excessive mold.

I'm stuck right now with my laundry room and kids bathroom remodel....It's all gutted out, and I've found rotted wood under the tub, to the point it rotted away a few joists ends. It's all being headed off and replaced, my job today actually.

But now I want to make a complete new lay out for both rooms and can't seem to figure it out......Need an architect but I'm too cheap!:D

Any time I've done repairs where I've found rotted wood, all new lumber is treated.

A little late in the process but hiring a home designer is always a wise move. Here in NC these guys (and gals) are not architects therefore less expensive. I have always been impressed with their work.

[LATB]

I've use Durock for the tub walls under tile when I redid a bathroom in the early 90s and I'm sure it's still there.

When I built my house in NC, 2005 I did green board in all the bathrooms, with one-piece fiberglass showers, and tile at the roman tub (that saw little use).

For my addition/ remodel I used Kerdi Board for the walk-in shower. It's super light (closed foam sandwich), waterproof. Really weird that it actually works.

The Kerdi System is a good product. I have used it on a couple of jobs. For myself I’m staying with the durarock.

[Jughead]

:waiting:

good info. I'm planning on redoing one of the bathrooms this winter with new tile.

[Black94lt1]

I just did green board, but I also did solid surface walls (swanstone) so the grout lines are formed into the panel but can’t fail. For tile, I’d either do kerdi or hardiboard

[04 commemorative]

We just remodeled our bathroom getting rid of the tub....used the schluter system and cement board....don't remember the brand.



https://www.flooranddecor.com/schluter-installation-materials?prefn1=productSubtype&prefv1=Shower+Systems&utm_content=M-Search&utm_audience=SEMNB&gad_source=1&gclid=EAIaIQobChMImbKKxb-ShwMV-Er_AR3BNxvlEAAYASAAEgJ60_D_BwE&gclsrc=aw.ds&tab=icon-filter-tabs-1

[Frankie the Fink]

Never seen a bathroom remodel job that had green board behind the tile that didn't have excessive mold.

I'm stuck right now with my laundry room and kids bathroom remodel....It's all gutted out, and I've found rotted wood under the tub, to the point it rotted away a few joists ends. It's all being headed off and replaced, my job today actually.

But now I want to make a complete new lay out for both rooms and can't seem to figure it out......Need an architect but I'm too cheap!:D

A designer/planner is a good idea and usually the ROI is worth it...our pool cabana bath was only going to be a 1/2 bath but the wife (former draftsperson and construction contract specialist) figured out how to put a stand up enclosed glass shower in it and still have plenty of room. Makes it so nice for people to shower when coming in off the lake after tubing.

[Tikiman]

I still have half a box of those screws you use to put the cement board up. I think they are blue for some reason.

[Newby]

I built a shower in our second house in 1976 and greenboard was the only option, it held up fine for 17 years till we sold and moved; I wouldn't use it today though.

Wonderboard was available since 1970 but not well known.
Green board or blue board was a lot easier and faster and less expensive.
30# felt was used for pans back then.

[vettemed]

I still have half a box of those screws you use to put the cement board up. I think they are blue for some reason.

The ones I always used (Backer-On) were like olive greenish

[LATB]

I still have half a box of those screws you use to put the cement board up. I think they are blue for some reason.

The concrete board manufacturers recommend using moisture resistant fasteners and they all make their own. Any exterior type screws will work. And I have to assume that the manufacturers are not considering the RedGuard or similar waterproofing skim coat that would make any screws moisture resistant anyway.

[04 commemorative]

Wonderboard was available since 1970 but not well known.
Green board or blue board was a lot easier and faster and less expensive.
30# felt was used for pans back then.

Love the avatar

[ZipZap]

I've used Hardie and Schluter products for bathroom remodels. Do you plan to tile over it?

[tjfontaine]

I've used Kerdi and kerdi board on my various shower remodels. I did one with redguard in a guest shower .... all worked well and no evidence of water problems.