For questions about drywall (aka plasterboard) installation, repair & finishing.

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3
votes
3answers
10k views

Is it safe to use Greenboard drywall in a shower?

I've seem a lot of people telling that greenboard drywall SHOULD NOT be used in bathroom and wet areas. However, in Brazil (where drywall is kind of a novelty yet) the manufactures recommend ...
2
votes
3answers
881 views

Do I need to cut into my drywall to install a switch?

I'm looking to put a light in outside my house. The light is going to be positioned directly behind the outlet I have pictured below where the wires are sticking out. I want the switch to control ...
5
votes
1answer
436 views

How can I replace ceiling gypsum board and loose fill insulation at the same time?

I lost most of a ceiling panel due to water saturation and collapse. It was removed along with insulation residue and a temporary fiber board panel tacked in in its place. Now I would like to install ...
4
votes
5answers
14k views

How should I remove the texture from the ceiling *without* tearing it out?

We want to get rid of the texture on our ceiling. It's a very ugly stipple effect. However, there's a foot and a half of insulation over this ceiling. Knocking it down to install new drywall is ...
4
votes
2answers
4k views

How do I mount the new work electrical boxes with the nail-in flange?

I have to install several electrical boxes for outlets, switches, and fixtures before installing some drywall. The boxes I have look like this: The distance between the front of the mounting ...
1
vote
1answer
234 views

Will grid-lines in textured ceilings show through paint?

We just finished texturing our ceilings with a knock-down texture, however the following day we noticed wide grid-lines in the ceiling everywhere we taped and mudded. We did not prime/seal the ...
3
votes
2answers
2k views

Should I be concerned about my house settling?

I bought my home about a year ago (September 2011). It's a split-level ranch built in the mid-70s. I have a couple of spots, especially on a wall going perpindicular through the center of the house ...
2
votes
2answers
1k views

How to repair latex paint on drywall in bathroom?

Within the two years we've lived in our house, the paint in our master bathroom has gone from glossy white to cracked and peeling in several spots. In addition to this, staple-shaped rust spots are ...
2
votes
1answer
3k views

Can a new ceiling be build directly onto an old one

I would like to build a new ceiling on to an old slightly sagging and poorly finished ceiling (peeling paint and no joint plaster used). I see this way as more convenient and less messy than ripping ...
4
votes
2answers
2k views

How to fit clothing rails into plasterboard to hold adequate weight?

I am converting hallway storage into a wardrobe. The dimensions are h 234cm W 132cm D 45cm I would like to put up two rails for clothing and some shelving for loose items My question is how would ...
1
vote
3answers
1k views

What products are available to make coved ceilings?

Due to massive cracks and drooping ceilings we need to tear off our existing plaster/lath walls and replace with sheetrock. The 1948 house currently has coved ceilings that we want to duplicate when ...
12
votes
4answers
6k views

How can I install a cable jack without a box?

I recently had our drywall replaced due to flooding. Our coax cables are now just hanging out of the new wall and I need to install cable jacks. Is there a way I can mount the coax wall plates to the ...
6
votes
5answers
3k views

Why is the drywall in my garage sagging?

The drywall on my garage ceiling is sagging badly. Is this because it's too thin (I think it's 1/2" and I guess it's supposed to be 5/8") or is it because of humidity or something else? If I ...
5
votes
1answer
1k views

How do I mount TV through 3 layers of drywall and into studs?

I have a 65lb 46" LCD television and a Sanus "flush" style wall mount. The mount instructions suggest that it shouldn't be mounted anywhere where there is more than the thickness of a single sheet of ...
4
votes
4answers
3k views

How should I insulate the walls and ceilings of this 1920's semi-detached brick house?

I'm renovating a 1920's semi-detached house. The plaster on the walls was slapped straight on the wall about an inch thick, and the ceilings were lath and plaster which had been overboarded. Most of ...
2
votes
3answers
18k views

How can I pass cables vertically through walls that contain fire blocking?

How can one pass (speaker) cables through walls from the floor to the ceiling. I am assuming that drilling a small hole at the top, dropping the cable I want to pass through and catching it at the ...
7
votes
1answer
3k views

Do I need to prime/seal new drywall behind cabinets?

If I were doing it, I would usually prime and paint before installing the cabinets. My painter for this project says he'd prefer that I install everything before he paints. Do I need to use a sealing ...
3
votes
2answers
976 views

What should I do about this possible mold I found under paint?

I live in Austin, Texas, which is important in that we don't receive much rain, and it's not very humid. I was peeling paint off of the old drywall, and found what appears to be mold on the bottom of ...
9
votes
3answers
6k views

What benefit do plasterboard/drywall screws have?

I have some plasterboard screws like this: However, without a drill I have a job getting them into the wall. Am I safe to use normal screws on hangings that aren't going to be taking a great deal ...
1
vote
2answers
2k views

How to fill gap between brick and drywall?

Where my ceiling drywall meets a brick wall there is a gap. This is smaller at the brick itself (maybe 3/16") and then larger where the mortar is struck. This seems too large to fill with ...
6
votes
1answer
2k views

Does it do any good to use fiberglass insulation if you're not going to drywall?

My attached garage is not insulated. When I look up, I see the roof sheathing. I was thinking of adding insulation to the garage. The problem is there is no attic space, so I shouldn't drywall it ...
7
votes
2answers
2k views

Why are there two layers of dry wall in my ceiling, and how can I patch it?

The fan in my bathroom died. We bought a replacement that's a bit bigger. The original was nailed to a beam in the ceiling and required me to cut out some drywall to remove. When removing the old ...
5
votes
1answer
966 views

Can drywall be installed over lath?

We removed the plaster from several walls because they were friable and bulging, but chose to leave the lath attached to save time/work. We will screw 1/2 inch drywall onto the walls, but upon further ...
2
votes
3answers
17k views

Under what circumstances is 5/8" drywall required?

From what I understand the code usually discusses things like fire rating (not specific thickness) as they relate to required material, and also the fastener pattern and what thickness to use versus ...
2
votes
1answer
5k views

How do I prepare a wall for backsplash tile?

I am getting ready to tile my blacksplash. I had laminate counters and backsplash. Of course when I removed the old backsplash the paper on the drywall was damaged. How should I fix this ? Will ...
6
votes
1answer
1k views

How can I fix an uneven and damaged transition from drywall to tile in the bathroom?

We recently replaced some old, cracking shower walls in a bathtub area with tile. Looks great. However, on one wall the drywall next to the tile bows out so it's not even with the tile in the middle ...
5
votes
2answers
8k views

How do I repair drywall around a bathtub?

I have an area of drywall that is next to my bath tub that has gotten soft and crumbly. Mostly held together by paint & caulk now. I'm reasonably sure I understand why. We're getting some water ...
3
votes
2answers
1k views

How should I mount a sliding closet door track?

I'm looking for input on my intended plan of action. I'm drywalling a room, closet included. The closet track is to be mounted on a crossbeam running the width of the closet. The crossbeam is ...
3
votes
1answer
394 views

Are there any special steps when installing drywall over vapour barrier?

I have a simple (I think) question about installing drywall overtop vapour barrier. Obviously the drywall screw will puncture the vapour barrier. What is typically done to prevent that puncture ...
5
votes
2answers
2k views

Can I put rigid foam on studs to prevent thermal bridging?

I'm re-insulating an interior wall & putting up drywall to replace the old plaster walls. Rather than screwing the drywall directly into the studs, I'm toying with the idea of putting a 1/2 inch ...
5
votes
4answers
4k views

How can I make outlet wall plates mount flush after removing wood paneling?

I recently removed some old wood panelling in my basement that was up against drywall. I refinished the walls and painted but now the outlet covers don't mount flush against the wall anymore because ...
3
votes
1answer
1k views

Was my mold issue handled properly?

I hope we didn't screw this up. We're in a rental and there was mold (blackish/grayish spots but it didn't look fuzzy) on the bare sheetrock garage walls and near a dryer vented into the garage (fixed ...
4
votes
4answers
10k views

Is there a way to trace water pipes through walls?

I recently purchased my house and I am trying to find my internal valve to turn on my external faucet. Unfortunately the previous owner put in a bathroom in over where the water line enters the house ...
2
votes
1answer
1k views

Will drywall mud stick to shellac-based primer?

We are preparing to prime interior walls using a shellac-based primer, followed with a setting compound mud. Will the mud stick adequately to the shellac-based product or do we need to use another ...
1
vote
1answer
226 views

What tool should be used to mud the inside corners of a diagonal ceiling?

We are preparing to tape and mud the 'inside corners' of a diagonal attic ceiling, where the short walls meet the ceiling. What is the best way to achieve a straight line? Is there a special tool we ...
6
votes
1answer
689 views

How much drywall should I cut to re-route some wires?

I am just looking for advice on how much drywall to cut to move some wires. There's a wire in the ceiling that has incoming power, and a switched leg for the light in the entry way, and another ...
1
vote
1answer
545 views

How can I restore the waterproofing behind a shower/bath mixer/diverter?

After install a new shower/bath mixer, I am proceeding to restore waterproofing behind the mixer follow by the tiles. Originally between the water pipes and the tiles there is a layer of gyprock ...
3
votes
4answers
7k views

Is it possible to anchor a cabinet to a wall without damaging it?

I have purchased an approx 2m high by 35cm deep dispay cabinet seated on a carpet floor. This is not fully stable (the cabinet rocks a bit when you exert force on the doors to open them), and it was ...
6
votes
2answers
7k views

Should I sand each layer of mud when joining drywall?

I'm plastering my first drywall and have been given advice from a friend who as done it a few times before. He believes I should not sand down the mud (a.k.a. jointing compound) between coats, but I ...
14
votes
5answers
40k views

Does bare drywall need to be primed before painting?

Is it necessary to prime bare drywall before painting? And do we need to prime existing textured, painted walls before we mud over them?
5
votes
1answer
835 views

What's the best way to plug circular drywall holes left by electrician?

I'm having recessed lights installed and want to know the best method to plug the holes left by the electrician. I was thinking of something like paint stirring sticks and construction adhesive to ...
1
vote
2answers
275 views

How can I reattach this pivot bracket for bifold doors to the wall?

I decided to repaint my bedroom a few weeks ago. I removed the closet door in preparation for it, then painted the room. I went to reattach the closet door and noticed that the pivot bracket on the ...
1
vote
1answer
966 views

Mildew resistant mud need for bathroom?

I'm installing the green sheetrock (moisture-resistant) in my new bathroom. Is green mud and tape recommended or required also?
3
votes
2answers
2k views

How can I fix a ceiling above the shower that was damaged by water?

Our pipe coming out of the wall was leaking a very fine stream of water. We haven't had time to fix it. I don't know what that bumpy stuff on the ceiling is called but it's all peeling off. I know the ...
4
votes
1answer
196 views

What advice would you offer somebody who is building a laundry chute for the first time?

I'm looking to build a laundry chute from our bedroom closet to the laundry room below. The positioning is such that the wall of our closet is shared with a storage closet in the loft above our ...
1
vote
1answer
1k views

How can I fill this gap between the plasterboard and window architrave?

The framing on my house is warped in such a way that I have several places where I have large gaps between the window/door architraves and the frame and the plasterboard just flaps around. I also get ...
4
votes
3answers
457 views

How do I insulate space in loft to create music studio

I have 3 DIY created rooms in my large live/work studio/artist loft. They are made with 2x4 and 2x6, framing with drywall walls and plywood ceiling. The apt has 14' 7" ceilings so we just have ...
8
votes
3answers
828 views

What fire hazard considerations are there when creating a cable hole between rooms?

Can't believe this hasn't been asked before, but I can't seem to find anything so... I've currently got a very light, very thin 32" TV mounted on the bedroom wall. It's perfect - except for the fact ...
5
votes
1answer
4k views

What is eating my drywall?

Something is leaving scars in my drywall and deposits on the outside that I presume to be wood. These deposits are flat, stick out from the wall, an inch or more square, with a gap between the top and ...
4
votes
1answer
498 views

How can I remove soap and toothbrush holders?

What is the safest and least damaging way to remove existing soap and toothbrush holders from drywall? We would like to remove these holders because we do not use them. It seems the previous owner ...