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Plastering when "risk of frost"

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  • 25-01-2006 12:40am
    #1
    aislingw
    Closed Accounts Posts: 35 ✭


    Hi - just wondering if it's reasonable to ask plasterers (exterior) to hold off for the moment as the weather forecast is saying there's a "risk of frost" - or is that something they should judge for themselves and take responsibility for... How long till a coat of plaster is no longer at risk of frost anyway - half the outside is skimmed and they are eager to get going on the pebble dash, but hubby concerned about weather situation... Should it be up to us to tell them to hold off, or up to the plasterers to decide for themselves? Or are we worrying needlessly - what's the worst that can happen - we do tend to get fairly heavy frosts - quite inland and not very sheltered... We rang their boss last night and he says "oh, yes, shouldn't plaster in frost" - but yet they turned up this morning - he had only called them 15 mins before (they come from 1.5 hours away so he knew well they'd be almost here by then)
    Thanks

    Aisling


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    #2
    rooferPete
    Registered Users Posts: 1,497 ✭✭✭rooferPete


    Hi,

    Your husband is right to be concerned about the frost or freezing overnight as it can make the plaster useless as a waterproofing finish unless it is protected.

    The volume of water used in plaster leaves it open to the expansion caused by freezing conditions on any concrete mix, maybe you could ask the contractor to issue a guarantee against frost damage.

    The pebble dashing is usually a decorative finish unless it's dry dashing which makes the finish a very important part of the construction, often being combined as the second coat of plaster.

    If the plasterers are happy that the finsh is protected well enough from freezing then it's their call, although the contractor does appear to have the question for you, personally I would expect a written guarantee regarding the freeze / thaw cycles from the contractor.

    .


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    #3
    aislingw
    Closed Accounts Posts: 35 ✭aislingw


    Thanks Pete, as it happens there was no frost tonight so they're probably thinking we're fretting over nothing. The guys are Polish and live in Arklow, so probably don't get the same kind of frost as we do inland - they kind of discounted "frost in Ireland" with a shrug.... anyway, they seem to know what they're at and have done a good job so far, so we'll get a written guarantee from the bossman (Irish) and let them at it...

    Thanks

    Aisling


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