Front wall of house has a brick exterior. The interior is plaster. There had been some water damage to the wall that turned a swath of plaster below the window into -- essentially -- dust. Gonna just square off the existing, solid plaster and put drywall in the gap. My questions:
1. can/should I install backerboard underneath the drywall? it would serve two purposes -- a shim to bring the dryall relatively flush with the existing wall...and it would help with any unexpected water intrusion.
2. how do I fasten the drywall to the brick right behind it? Are masonry screws sufficient? other options?
3. probably a stupid question...but do I need to remove the baseboard and the trim under the window sill in order to install? If I were able to slide it in behind the trim and under the sill and then bring it down into the existing gap behind the baseboard (the plaster is GONE from here), can I just fasten it directly through the trim/baseboard? I'm happy to clarify if this doesn't make sense.
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