Swimming pools, especially chlorinated pools, really have medium and long term issues if you use standard drywall metal, boards and skim.......
Ceilings
Make sure you use specially coated ceiling grid systems, to protect from corroding and failing later (don't want the ceiling falling into the pool, especially if someone is in it).
Most Gypsum based boards, will absorbed moisture and get soft and heavy as a result. Get a spec for the right application if you are going down this route.
Gypsum skim, especially a think coat, will soften and then gravity may cause shelling.... Knauf Ready Mix Plasters are marble based, so more suitable. Knauf Aquapanel Interior Skim even better in this application.
Knauf can offer a complete swimming pool ceiling solution, as Dan has pointed out above.
We now also have a NEW Knauf Aquapanel Skylite cement board for these ceilings. Thinner than normal Knauf Aquapanel Interior at only 9mm, and only 900x1200mm for 1 man lift.
The Knauf Aquapanel Interior Skim is a special ready mix plaster with anti fungicidal additive.
Yes, not a cheap solution, but THE CORRECT SOLUTION for the application.
Walling
Coated studs and then Knauf Aquapanel Interior. This can be tiled or finished using the same skim. If within 2 mtrs of pool, rile up to 1800mm high.
Contact Knauf for a spec or assistance, or drop me mail
Richard Lord
Knauf
07918766577
[email protected]