How to Install a Drywall Vaulted Ceiling

Vaulted ceilings are popular in many homes as they provide a more elaborate appearance and a greater feeling of space around you. A vaulted ceiling does not only make your home look better, but it can also increase its value. Installing drywall on such a ceiling is a little more awkward than installing it on a normal horizontal ceiling, though the principle is exactly the same. The only significant difference is that you will need to constantly move and adjust the scaffolding when hanging the drywall.

Tools and Materials

  • Drywall plasterboard
  • Scaffolding tower
  • Measuring tape
  • Putty knife
  • Power drill
  • Drywall tape
  • Drywall saw
  • 2 saw horses
  • Drywall plaster
  • Drywall screws
  • Sandpaper
  • Graph paper and pen

Step 1 – Determine How Much Drywall You Need

The first thing to do is measure the entire area of the ceiling. Also remember, drywall comes in 4x8-foot sections. You want to be able to use as many pieces as possible which do not need to be cut to size. To measure the full area of the ceiling, multiply the length and width of each section and add each result together. Determine where you will need to cut sections of drywall to fit. Draw an accurate diagram on graph paper so you know exactly how much drywall you need to purchase and how much you need to cut.

Step 2 – Hang the Drywall

Assemble the scaffolding as directed to by the manufacturer’s diagram. Make sure that it is properly assembled otherwise it can be dangerous. You will need one or two people to help you as the sections of drywall are large and not easy to manage by yourself. Place the scaffolding tower at the most convenient location for installing the first full section of plasterboard. Put the first section in place and attach it to the ceiling joists using screws specially designed for the job. The screws should also be about 1 foot apart from each other. Finish applying drywall to the rest of the ceiling in the same manner, using a special drywall saw to cut any pieces to the right size. Hang the smaller pieces in exactly the same manner.

Step 3 – Apply Drywall Plaster

When all of the plasterboard has been installed and thoroughly covers the vaulted ceiling, apply the drywall plaster. Plaster should be applied over the ends of the screws. Apply it using a putty knife.

Step 4 – Apply Drywall Tape

Apply drywall tape to the seams between the sections of plasterboard. On top of this, apply a layer of the plaster.

Step 5 – Sand Down the Surface

Using a 120 grit sandpaper, sand down the surfaces over the screw heads and sections of tape. Make sure that the surfaces are completely smooth so that the plasterwork will be able to adhere to them easily. You should then repeat Step 3 and then sand it a second time, having left it to dry for an adequate amount of time.