No, that is futile. The insulation goes inside the wall.
5/8 sheetrock over a stud wall has a one hour rating.
To effectively repair a sheetrock patch in your wall, you will need to clean the area, apply joint compound, smooth it out, let it dry, sand it down, and then paint over it to match the rest of the wall.
To sheetrock a wall effectively and efficiently, start by measuring and cutting the sheetrock to fit the wall. Secure the sheetrock to the wall studs using screws or nails. Tape and mud the seams to create a smooth surface. Sand the dried mud and apply a primer before painting or finishing the wall.
Sheetrock nails may be popping out of the wall due to improper installation, moisture issues causing the sheetrock to expand and contract, or structural movement in the building.
Putting plastic over the stud walls before sheetrock is not recommended. The moisture will be trapped between the sheetrock and plastic and the home will not breathe.
To effectively insulate an interior wall, you can use materials like fiberglass batts, foam board, or blown-in insulation. Start by measuring the wall and choosing the appropriate insulation material. Install the insulation according to the manufacturer's instructions, making sure to fill any gaps or voids. Finish by sealing the wall with drywall or another covering to maximize insulation effectiveness.
You cannot use sheetrock as flooring, period. If you meant on a wall, there is no reason you cannot put sheetrock over tiles. The question is why would you want to! Why not remove tiles and material behind, which is probably sheetrock, and then install new sheetrock. If it is an area prone to moisture you could use moisture resistant sheetrock. The job would look better and you would not lose the space by adding over existing material.
The best way to install a sheetrock access panel in a wall is to measure and cut a hole in the sheetrock, attach the access panel frame to the wall studs, and then secure the panel in place with screws. Make sure the panel is flush with the wall surface for a clean finish.
Cut all the way through the sheetrock and pull the tile and sheetrock at the same time.
If it is a sheetrock wall, hammer in a needle. It will not bend, and it will hold a lot of weight!
It takes 2x4 's in wood or metal and drywall to cover it. Possibly insulate it, depending on the intended use.
To effectively perform sheetrock repair on a damaged wall, start by cutting out the damaged area, then measure and cut a new piece of sheetrock to fit. Secure the new piece in place with screws, apply joint compound to fill in gaps, and sand it smooth. Finally, prime and paint the repaired area to match the rest of the wall.