Be aware that a drywall is heavy stuff, since a regular sheet weighs about 1.7 pounds per square foot, which is about 54 pounds, and doing the rounds of repair in a damaged drywall is giving you an idea how heavy they can be.
All-purpose joint compound and the lightweight joint compound are the two kinds of pre-mixed joint compounds that will be needed to coat cracks, holes, etc. on a drywall. The all-purpose joint compound is applied as a first coating over paper tape on seams on a damaged drywall because it contains more glue agents than the lightweight compound. The lightweight joint compound, which contains less glue agents, is mainly used as a second coating, but more as a finish coating over seams and corner bead of drywall areas.
In repairing a doorknob hole of a drywall, use a peel-and-stick patch, which is an aluminium screen covered by a fiberglass mesh, and press the patch over the doorknob hole using a 4 inch or 6 inch drywall knife to apply all-purpose joint compound over the mesh and make about three coatings of the compound over the mesh.
For battered corners of a drywall, this can be fixed following these steps: first, cut away the metal corner bead with a hacksaw; second, use a nail bar to remove the damaged section of the corner bead; third, hold the new corner bead in place by marking its length; fourth, cut a new section of the corner bead to length and nail it and sand the surface of the bead if it is glossy; fifth, coat the bead with several coatings of lightweight joint compound using an 8 inch drywall knife. Learn about Norwalk Carpentry here!
Cracks on drywall are often found below a window or above a door, to repair them, use these procedures: use an abrasive-coated foam block, like a sanding sponge, to smooth the cracks; apply a thin coat of all-purpose joint compound to the smoothed, cracked areas; sand the coated cracks again and apply a second coat of the all-purpose compound; finish the areas with a spray elastic crack coating.
Nails and screws that pop out when the lumber shrinks can be restored by applying these steps: twist a utility knife into the wall to carve away the joint compound that is embedding the popped nail or screw; tighten the screw or tap in the nail; use a small drywall knife to apply three coatings of lightweight joint compound over the screw or nail head. Know about Norwalk Residential Painting here!
Repairing soggy, drywall ceilings are performed through these steps: use a hand sander and coarse sanding mesh to remove out texture and smooth out the damaged ceiling area; if water is the cause of the drywall ceiling to sag, re-attach the ceiling along the seam, nailing the drywall to the joist; apply a coat of stain-sealing, shellac-based primer over the damaged ceiling; use a roller to apply a mixture of drywall compound with water over the ceiling; after the drywall compound has dried up, add texture back to the ceiling using a short-handled stomping brush.