Water damaged plasterboard - repair or replace?

Question

Hi,We've recently suffered some internal water damage from a leak, leadingto a partially collapsed ceiling and several plasterboard walls showingareas of brown stains.The house is now dry, following several weeks with de-humidifiers andair movers running, and on the whole, the plasterboard walls appear tobe sound. However, I'm getting different opinions from variouscontractors as to whether the stained walls areas should be replaced,or whether treatment with a stain blocker prior to re-painting would besufficient.Can anyone offer any advice?TIASpoon

Rob Morley · Accepted Answer

Try the stain block approach and see if you're happy with it?  If it turns out ot be no good you can always replace the plasterboard later.

Mike · Answer

Possibly.  But several layers of white matt may be quite adequate andcheaper.

Spoon · Answer

Thanks for the reply Rob,Rob Morley wrote:The potential problem there is that if I'm not happy down the line,I'll have the expense and inconvenience of having to re-plasterboardand re-decorate for the second time, which is why I'd like to get itright, without going overboard, initially.The other factor is that the damage was caused by a negligentcontractor - who I may have to sue to cover the repair work -  anotherincentive to get it right first time whilst he's footing the bill.

Water damaged plasterboard - repair or replace?

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