Drywall over plaster
#1
10-23-13, 06:20 AM
Join Date: Apr 2012
Posts: 13
Upvotes: 0
Received 0 Upvotes
on
0 Posts
Drywall over plaster
Hi there,
I am currently drywalling over my plaster walls and had some mudding questions. Some of the pieces that I have placed on the ceiling have a gap of about 1/2 inch to 3/4 inch. I know these will be taped and mudded but was wondering if I should fill in the gaps with mud first before taping??
Any help is greatly appreciated.
I am currently drywalling over my plaster walls and had some mudding questions. Some of the pieces that I have placed on the ceiling have a gap of about 1/2 inch to 3/4 inch. I know these will be taped and mudded but was wondering if I should fill in the gaps with mud first before taping??
Any help is greatly appreciated.
#2
10-23-13, 06:41 AM
Member
Join Date: Nov 2008
Location: Canada
Posts: 578
Upvotes: 0
Received 0 Upvotes
on
0 Posts
That's a pretty big gap between joints, even if they're going to be taped. Filling a gap that large with mud is likely going to droop and sag unless you do it a bit at a time with a few coats.
#3
10-23-13, 07:28 AM
Banned. Rule And/Or Policy Violation
Something's very wrong if the gaps are that big.
Not sure how you could have even hit the joist if it's that far off.
What type drywall did you use?
How long a screw?
Use Drywall glue?
Not sure how you could have even hit the joist if it's that far off.
What type drywall did you use?
How long a screw?
Use Drywall glue?
#5
10-23-13, 08:46 AM
Prefilling gaps is usually a good idea but it might be difficult to do on ceiling. Posting a pic or two would allow us to see what you see and help us to give better advice - http://www.doityourself.com/forum/el...-pictures.html
#6
10-24-13, 05:18 PM
Use quick setting joint compound. I like 5 minute mud for work like this. Are you screwing into wood lath? Maybe, just maybe you can do that and get away with it if you put only one screw into a lath and that lath does not end near the screw, otherwise the lath will probably split and not hold the screw and drywall. I hope your gaps are on the sides of the studs and joists perpendicular to the framing or else you have one end of the sheet not supported well, if at all.. Maybe on a wall you can get away with this, on a ceiling it is doubtful, The hold of the screw into wood lath is tenuous at best.
Adhesive is only as good as the bond to the paint and the bond of the paint to the plaster.
Adhesive is only as good as the bond to the paint and the bond of the paint to the plaster.
