Details on how to patch a hole in drywall. If the damaged area is larger than 6 inches repair it with a new piece of wallboard. First, remove any torn or dangling pieces of wallboard. With a carpenters square and pencil (ballpoint ink can bleed though paint) draw a rectangle or square around the damaged area. Make the corners as squares as possible, so the new price will fit neatly
Scoring The Damaged Area
Scoring the damaged area. Using a utility knife, lightly score the pencil line of the square or rectangle drawn in Step 1: hold the knife with both hands for good control. Then repeatedly score the lines, cutting a little deeper on each pass until the knife cuts completely through the wallboard and paper backing
Pulling Away The Damage
When the edges around the damaged wallboard section have been completely scored with the utility knife, clear away any gypsum or paper backing in the middle of the hole and pull the damaged section out. If the section comes away unevenly, or if any paper backing remains, cut it away. Trim any rough spots around the perimeter of the hole that could prevent a patch from fitting snugly in place. If the insulation lies behind an outside wall surface, take care not to damage the vapor barrier. If the vapor barrier is damaged, reseal it using the methods described above. By the time you finish reading this page you will know how to patch a hole in drywall.
Cutting The Patch
Transfer the measurement of the cut out square or rectangle to a piece of wallboard of the same thickness; the replacement piece should fit into the cutout area with no more than a 1/8 to ¼ inch gap. Using the straight edge as a guide, score the wallboard until the utility knife cuts through the top layer of paper and gypsum core. Then align the cut along the edge of the sawhorse or table and with hand holding the end, give a quick firm push down to the end. Turn the wallboard over, bend it and score the crease with the utility knife Snap off the patch
Bracing The Patch
Cut four braces from pieces of 1-by4inch lumber. First cut two vertical braces about 5 inches longer than the height of the opening in the wall; then cut two horizontal braces to fit between the two vertical ones. Insert each brace behind the wall this will provide anchorage for the wallboard screws when the patch is put in place. One at a time insert the braces behind the wall and using wallboard screws, screw through the wall into the brace about 1 inch from the edge of the opening. Drive the screws at 8-inch intervals around the opening
Installing the patch
Place the new piece of wallboard in the opening and fasten it to braces with wallboard screws-in the four corners and approximately every 5 inches along the sides and 1 inch from the edge. Then plaster the joint filing the gaps with a fast-setting filler or patch plaster. Try not to add too much filler or plaster otherwise the joints will show
Taping The Joint
Taping the joint after the filler or patch plaster has set, any high spots using fine-grade sandpaper. Then tape the two vertical edges of the repair, and the top and bottom joints using the methods described. Congrats you now know how to patch a hole in drywall.
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