Ok you drywall pros, I need some help. The "lodge" has plaster over fiber board on the walls and ceiling of the original house. Corners of the walls and ceilings have reinforcing mesh. I patched in areas of standard drywall that I firred out to match the original depth, except where I replaced the whole wall. Question 1: What do you suggest I do with the area that has exposed mesh. The depth is about 3/16". I'm leary about using that much drywall mud. Question 2: What should I use for the full drywall wall to ceiling joint? Seems rather large gap to use standard tape and mud. Would you suggest filling the gap first? Thanks!
Use quick mud.... 45 minute mud. Sold in bags. Dries hard. Fill in those areas. Then tape the cracks and mud normally. I'm not a drywall pro but this is what my drywall guy does.
Yeah, but gotta be careful. Sets quick schlot - they also sell 20 minute mud in a dry mix; 'round here they call it hot mud. I've used the 45 & the 90 minute and Boiler74 is right... that stuff dries really hard; no fun to sand. Of course, you could just apply crown molding schlot
Quick mud or plaster is good. I like to rattle can some primer over the old plaster so it doesn't pull moisture out of the new mud and cause adhesion issues.
Use backer rod (flexible foam rod) to fill in that gap. They sell it in up to 1.5" diameter I believe. I've used that for all my ceiling joints - amazing how much cold are those gaps will let in. So I fill with backer rod, then caulk, then tape/mud.
Still think youd be better with plaster of paris. No shrinking therefor no cracking. Dries super fast.
