Repairing a gap within the drywall is not as troublesome as it seems. For holes up to 6 inches, use the California Patch. The 2 commonest drywall compounds are lightweight and all-purpose. If the penetrants are mounted to and hung off the drywall assembly itself through the check, this doesn’t represent a sensible deflection exposure insofar because the firestop is concerned.
To use the patch, simply clear the wall floor and sand it to give the surface a bit ‘tooth.’ Then stick the patch over the hole and canopy it with two or three thin layers of joint compound. First, twist a utility knife into the wall to carve away the joint compound from above a popped nail or screw.
The key to eliminating drywall nail pops in your future room addition is to ensure the lumber used it not overly moist. With a utility knife, reduce by means of just the paper along this line. Whereas it carries some waterproof properties, for those who experience a catastrophic influx of water caused by burst pipes or a storm, then the integrity of drywall will normally be compromised by the sudden burst.
Cover the opening or dent with quick-drying spackle to bring the spackle stage with the drywall surface and let it dry 24 hours – or the time recommended by the producer’s instructions. It also bears mentioning that drywall sanding mud is a respiratory irritant.