How to Fix a Hump in Sheetrock

Sheet rock, also known as drywall, is panels of gypsum plaster pressed between two sheets of thick paper. It is used to makes interior walls and ceilings at a faster pace than the plaster-based finishing techniques used in the past. It takes experience and skill to tape and finish the seams correctly to create a smooth finished wall. Do-it-yourselfers who decide to take on this project may find a few humps in the finished product. The good news is that the humps can be eradicated or made less noticeable with the proper techniques.

Things You'll Need

• 14-inch-wide trowel
• Pencil
• Drywall compound
• Hairdryer
• Putty knife
• Paint roller
• Paint primer
• Finishing paint
• Medium-grit sandpaper

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Instructions

1. • 1

     Place the edge of the trowel on the hump, and use a pencil to mark where the trowel and wall do not meet.

   • 2

     Put some drywall compound on each side of the hump, using the markings on the wall as a guide. Use the compound to make both sides level with the highest point of the hump.

   • 3

     Use the trowel to smooth the area, remove excess compound and feather the sides outward.

   • 4

     Use a hairdryer to dry the compound.

   • 5

     Use a putty knife to scrape the original surface so it's free of any ridges or tiny bumps.

   • 6

     Lightly sand the area with medium-grit sand paper.

   • 7

     Prime and paint the area with a roller to match the existing paint.