hi there , can anyone help ? just moved into an older house and want to re skim the walls, some are painted whats the best cause of action . Also want to dot and dab the inside walls of the exterior with phonetic foam backed plaserboard , whats the best way to prep these walls ,instead of dot and dab could i use say 10mm grooved tile adhesive float to coat the walls . many thanks kepsy

Move to plastering.

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wba would work on the painted walls for skimming and for dabbing onto if there's no key.

why don't you want to dab the foam boards on?

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“He who asks a question is a fool for five minutes; he who does not ask a question remains a fool forever”
Abingdon Plasterer

you can use PVA, Thistle Bond-It or WBA (wickes version of Bond It) on the walls you need to overskim. Bond it and WBA need to be applied the day before skimming, PVA immediately before. 2 Coats, apply skim when the second coat is tacky. for the thermal boards, use Bonding Compound. Lafarge do a Universal compound which is designed to do both normal boards and thermal boards. the day after boarding the walls, you'll need to put some mechanical fixings into the boards incase of a fire.

try these:

http://www.british-gypsum.com/products/ ... plugs.aspx

thanks for that , will deffo go with wba , i just thought that if i put the bonding adhesive on with a 10 mm grooved float it would give better adhesion overall and not addd too much to the overall thickness of the wall , im sticking the boards to previous skimmed and painted walls ,so ther fairly flat anyway , im doing this because the house has solid 9" brick walls , thanks for the info

-- Tue Aug 31, 2010 9:14 pm --


thanks for that , will do could i wba alls the walls i need to do in one day then skim them later in the week ,am having to live in and hop from one room to another , thought if i could wba them all at once it would save me some time befroe i skim them , they maybe left for more than a week ,cos i have the ceilings to as well !!!!!!!!!!! cheers

yeah you can WBA it and once its dried it can be skimmed whenever you get time