I am trying to work out whether to use a salt retardent plaster or a thermal plasterboard when replacing the plaster of my ground floor living room walls, to resolve a dpc issue. The room is long and narrow so I am concerned about losing space with the plasterboard solution, but the reading Ive done and advice Ive found suggests that it will be more heat efficient and quicker/easier to install than a new plaster. Has anyone had any experience of these materials that could offer some advice on suitability or potential loss of floor space?
[u]Some background[/u]
I have an old house which had a damp proof course put in by the previous owners (1999). They then sold the property to me (2001) and I have finally got around to removing the wallpaper in the living room only to find signs of damp which upon investigation showed that they didnt replace the original plaster as instructed. This has made the guarantee Ive inherited invalid. The DPC company who provided the original guarantee are writing me a letter to confirm that if I do the work now as per their specificiation the guarantee will be valid as following their inspection they are happy the DPC is still ok. They are specifying the suitable materials for both options (salt retardent plaster or thermal plasterboard) and I believe there is a drying time for the plaster before adding a skim/paint etc which must be adhered to if the guarantee is not to become invalid again (this would be another argument for the plasterboard). I just need to decide which is best taking everything into consideration: depth/cost/effectiveness - oh and speed to completion!