They probably put 2 layers to help stop fire from spreading. As far as your problem goes, go to an electrical store and ask for a Mud Ring, it basically extends your box to sit flush with the 2nd layer of drywall. I would measure the 2nd layer of drywall and see what size you need. Good Luck!Besides, why does my house have 2 layers of drywall?
Drywall sheets cover walls made from vertical wood studs and hollow cavities. Ceiling drywall is 5/8 inch thick, and wall drywall is 1/2 inch thick. Install a second layer of drywall on top of the first layer to create a better sound barrier as well as better insulation.
Also, how do you stack drywall? If you are storing drywall for no more than a few days, you can stack it vertically against a wall. Make sure it is close enough to the wall at the bottom so the drywall does not apply too much pressure to the wall but far enough away so the stack does not tip over.
Regarding this, can you double layer drywall?
Usually, double layer drywall is installed vertically for the first layer and horizontally for the second layer. Place the first layer of the drywall starting on one edge of the wall. The wall sheet should be parallel to the wall frame as much as possible.
Does double drywall reduce sound?
Dual layers of drywall = increased mass. Increased mass = sound deadening. Putting green glue between the two layers of drywall acts as a decoupler, so that the outermost layer of drywall "floats" and doesn't transfer the sound waves from your subwoofer through to the rest of the wall.
What are the layers of drywall?
Drywall is a construction material consisting of thin panels of gypsum board. The board is composed of a layer of gypsum rock sandwiched between two layers of special paper. Drywall makes for a much more efficient method of construction than the common earlier technique of applying wet plaster to a gypsum lath.How do you install two layers of insulation?
If you have paper faced insulation put the first layer (paper side) toward the warm part of the house. Place the second layer paper side up toward the roof and then run your utility knife through the paper. This will allow any moisture to escape. As others have said run the second layer perpendicular to the first.Where can I use 5/8 inch drywall?
5/8-inch: These panels are commonly used for ceilings, or for walls that require a prescribed fire-resistant rating. When installed on ceilings, 5/8-inch-thick panels are more resistant to sagging than 1/2-inch panels.How much does QuietRock cost?
Currently, the cost of QuietRock 510 at Lowes is about $54 per sheet of 1/2-inch-thick, 4 x 8-foot panel. This compares to a sheet of conventional 1/2-inch-thick drywall selling for about $7.50 per panel. This means that you can purchase roughly 7 sheets of standard drywall for the cost of one QuietRock panel.What is drywall made of?
Drywall (also known as plasterboard, wallboard, sheet rock, gypsum board, buster board, custard board, or gypsum panel) is a panel made of calcium sulfate dihydrate (gypsum), with or without additives, typically extruded between thick sheets of facer and backer paper, used in the construction of interior walls andWhat size screws 5/8 drywall?
When working with 1/2-inch drywall panels, use 1-1/4 or 1-3/8-inch nails or screws. When working with 5/8-inch drywall panels, use 1-3/8-inch or 1-5/8-inch screws.How do you install drywall on top of drywall?
Secure the Drywall With Screws Take the sheet over to the wall and place a screw at the first stud. Carefully place the new drywall over the thinner drywall to avoid breaking the paper on the existing drywall. With the drywall T-square and a pencil, draw a line down the drywall where the stud falls (Image 1).Can you put drywall over drywall?
Hanging new drywall over existing walls is very similar to hanging drywall in a new construction setting. The most notable difference is that you can't see the studs to know where to put your screws.Why is drywall hung horizontally?
For walls nine feet high or shorter, hanging the drywall horizontally has a number of benefits. Fewer seams – Horizontal hanging reduces the lineal footage of seams by about 25%. Hides uneven studs – Hanging horizontally also allows the drywall to flow over the framing so that bowed studs create less of a problem.What is Green Glue?
Green Glue Noiseproofing Compound is a viscoelastic damping compound that converts sound energy into a minute amount of heat. Very simply, when used between two rigid layers of material, typically drywall, the compound works to isolate the noise traveling from one room to the other.Where is fire resistant drywall?
Fire rated drywall is typically found on attached garage walls and ceilings that are adjacent to the main living area of the home. For commercial buildings, fire rated gypsum drywall is specified for most of the building walls and ceilings to meet building code requirements for fire partitions and assemblies.Can you attach drywall to plaster walls?
If the plaster walls in your home are unattractive or too costly to repair, you can cover them with drywall and start fresh. Drywall needs a sturdy substrate, so fasten loose plaster back to the wood lath strips behind it with plaster screws.Should drywall touch the floor?
Drywall should definitely not touch concrete as moisture will wick (ie flow up the surface as in a candle/lamp wick) into the drywall and encourage mold growth. 3/8" should be sufficient - your prop up plan is not only appropriate, but a common technique used by drywallers.Should drywall go all the way to the floor?
It's preferred that there be a 1/2-inch gap between the bottom of the lower drywall panel and the floor since this allows room for seasonal expansion and contraction of the drywall and prevents buckling.How long can I store Sheetrock?
If it will be there awhile or you are concerned, just lean some boards against the wall and then the sheetrock against that. Sheetrock, like plywood, is best stored flat on the floor. But a day or two should do no harm. A day or two always ends up being a month or two, or several years.How high can you stack drywall?
Limit stacks to a maximum height of 17 feet (10 units) or less based on conditions. n Units of gypsum panel products should always be stored flat and evenly supported on a firm, dry, level and structurally sound floor.How many sheets of drywall are in a lift?
Sheets of drywall are either 4 x 8's (32 sf each) or 4 x 12's (48 sf each). If you add the 320 sf needed for walls and the 100 sf needed for ceilings, you get 420 sf of drywall needed. Divide the 420 by 32 for 13.125 or 14 sheets of 4 x 8 drywall. Divide 420 by 48 for 8.75 or 9 sheets of 4 x 12 drywall. 
