The correct application of a drywall patch should end up with the drywall looking smooth and scar free. If you need to make a repair to any drywall in your home, follow the directions that come with the patch. Depending on the type of adhesive patch you have bought for your drywall, using the correct tools and adhesives will help to get the job done properly.
1 - Preparing the Damaged Area
Clean the area around the hole carefully and remove any dust, debris or loose particles of the torn drywall hole and edges. Once the area is clean, wipe with a tack cloth and get rid of any excess dust. Vacuum if necessary and clear the debris to offer a clean working surface.
2 - Preparing the Patch Area
Cut a piece of drywall slightly larger than the hole you are going to repair. Hold the drywall patch over the entrance of the hole and trace the outline, with a pencil, onto the wall. Then, using the pencil lines as a guide, cut out the larger-shaped piece from the wall using a drywall saw. This will effectively extend the size of the hole and neaten the edges for a better repair.
3 - Adding scaffold Cleats
Cut two wooden cleats slightly larger than the size of the hole. These are going to be placed inside and behind the hole to strengthen the bond of the repair. Apply a good amount of construction adhesive to the cleats and place them into the hole, pressing them firmly against the inside of the wall. Position one cleat to either side of the hole but make sure that each cleat sticks out into the opening of the hole and are visible through it. Next, using drywall screws, attach the cleats through the drywall.
4 - Setting the Patch
Peel off the backing paper to the adhesive aluminum patch and set it in place. Screw it to the exposed part of the cleats that can be seen through the hole. Set it in place carefully, leaving the smallest amount of gaps around the edges as you can. Next, apply a good amount of joint compound over the drywall patch. Cut a piece of insect screen the same size at the patch and apply it into the wet compound, pressing it in neatly into place. Apply more joint compound over the top.
5 - Sanding
Once the repaired hole is dry, sand it with fine grade sand paper and apply two or three more coats of compound as required. Allow the area to dry thoroughly before sanding for a final time. Once you have sanded, checked the area for residual dust and wiped the surface clean with a tack cloth, you will be able to either wallpaper or paint over the newly-repaired drywall surface. Remember to make sure that the compound is completely dry and hardened before you paint.