Help translating plaster skim-coat proposals?
We're currently doing a cosmetic renovation on 2 of our 3 bedrooms. Stripped all of the wood trim, took down wallpaper that had been painted over and are almost ready to have the professionals come in to skim-coat the walls and ceilings.
Both bedrooms have some minor (old) water damage (discoloration and some peeling paint, but plaster seems to still be fine), the room where the wallpaper was taken down now has a wall and a half of bare unpainted plaster and the other room has sand textured paint on the ceiling. This is of course in addition to various settling cracks which don't seem to have worsened since we bought the house 3 1/2 years ago.
We've received 3 quotes from reputable companies, but since each proposal's procedure seems to vary slightly, I'm curious to get someone else's take on what is or isn't necessary.
Here are the proposals:
Remove any water damaged plaster and loose plaster.
Apply a slow drying oil primer
Apply a paper tape (not fiberglass) over all cracks and corners.
Apply a 50-50 mix of slow setting gauging plaster and USG all purpose compound (not lightweight compound )
When above coat is dry apply a skim coat of compound leaving ready for painting.
Install 36 inch mesh screening over entire surface of ceilings and walls and coat surfaces with plaster
Apply two applications of Durabond 45 compond.
Sand surfaces to a smooth finish and apply one coat oil based primer to make surfaces ready for
Seems like only Proposal #1 includes 3 coats and #2 is skipping the mesh tape? Since some walls are bare plaster, should it be primed before putting up the mesh, or would the bondling liquid in #3 suffice?
What sort of prep if any should be done to remove loose paint, dig out cracks, etc if mesh is being used?
We're currently leaning towards #3, whom we've worked with before, so before going back to them, just wanting to make sure they're not skipping any steps or if there's anything else we should ask them to include/specify.
Just trying to find a way to compare apples to apples when it comes to the pricing, so advice from those who have done this process would be greatly appreciated!