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How to Install Purple Drywall

Most people think that drywall comes in exactly one color: off-white. These people are not quite correct, however. Drywall comes color-coded, depending on the type of environment it is best suited for. Purple drywall, for instance, is specially treated to be mold-resistant, and is typically used in bathrooms or other areas that might experience a higher-than-normal level of moisture and therefore be more prone to developing mold. Purple drywall is installed in the exact same manner as any other piece of drywall.

Things You'll Need

  • Measuring tape
  • Marker
  • Straight-edge ruler
  • Razor-blade knife
  • Drywall nails
  • Drywall hammer
  • Fiber-mesh tape
  • Joint compound
  • 4-inch joint-finishing knife
  • 10-inch joint-finishing knife
  • Sandpaper
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Instructions

    • 1

      Measure out the area where you need to install the drywall, and write down the measurements on a notepad.

    • 2

      Make marks on the drywall that coincide with the measurements from Step 1.

    • 3

      Score a line down the marked-out line from Step 2, using a razor-blade knife. Use a straight-edge ruler to keep your knife moving straight down the line.

    • 4

      Snap the drywall down the score lines you made in Step 3.

    • 5

      Position the drywall against the area so it fits in as needed. Make a mark on the drywall where it covers a wooden stud so you know where to place the nails.

    • 6

      Nail the drywall to the studs, using drywall nails and a hammer. Do not hit the nails so hard that you break the paper covering the drywall or crack the drywall itself.

    • 7

      Apply an initial layer of joint compound to every seam in the installation area, using a 4-inch joint-finishing knife. Press the compound lightly into the seams, and then use the edge of the knife to scrape away any excess compound.

    • 8

      Place mesh tape over the compound so the tape is centered along the length of the seam. Press the tape firmly into the compound and allow it to dry for 24 hours.

    • 9

      Apply a "fill coat" of compound over the tape once the first layer has dried. Extend the second coat approximately 1 inch beyond the original coat so it covers up both the original coat and the tape. Scrape away the excess compound and allow this coat to dry as well.

    • 10

      Apply a third coat to the seams, using a 10-inch joint-finishing knife. Extend the third coat approximately 1-1/2 inches beyond where the second coat ended.

    • 11

      Sand the compound lightly after it has dried to smooth it in preparation for covering it with paint or wallpaper.