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Pressure treated wood preservation ? (shed floor)

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  • 21-04-2018 10:24am
    #1
    peasant
    Registered Users Posts: 17,819 ✭✭✭✭


    I'm going to get a wood frame steel shed soon, the floor is going to be pressure treated runners and tongue&groove boards.

    Before I put the floor down (on blocks) I would like to give it an extra coating on the underside of something that will significantly prolong its life ...what to use?

    Creosote? varnish? normal fence/shed paint? leave well enough alone?

    also...put down a damp barrier on the ground, yay or nay?

    Thanks for sharing the wisdom of the collective


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    #2
    my3cents
    Closed Accounts Posts: 9,764 ✭✭✭my3cents


    First you need to make sure your timber runners are as dry as possible, the drier they are the more preservative will soak in.

    I always use Protim 265 as a preservative (use the green so you can see what you have treated the colour fades very very quickly) and I often use blocks as a foundation then run a layer of DPC before laying down the timber. The DPC is there to stop moisture coming up through the blocks.


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    #3
    Roen
    Closed Accounts Posts: 4,620 ✭✭✭Roen


    @my3cents, do you have a place that supplies Protim 265 either online or in house? I'm in the SE and struggling to find some at all.


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    #4
    my3cents
    Closed Accounts Posts: 9,764 ✭✭✭my3cents


    Roen wrote: »
    @my3cents, do you have a place that supplies Protim 265 either online or in house? I'm in the SE and struggling to find some at all.

    Any builders merchants should have it. Some seem to be stocking water based products that aren't as good imo so maybe not every builders merchants has that particular product.

    I can find it online but don't want to quote a link as the prices are mad. I pay iirc €22.50 for 5l and online its over €30 :eek:

    It might also have been dropped in favour of the less effective water based products as a few sellers online don't seem to have it anymore?

    Protim Green Wood Preservative seems to be a similar product/replacement. Just check that its NOT water based before you buy it. The whole point of the nasty polluting solvents is that they penetrate the wood much better than water so give deeper protection.


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    #5
    Roen
    Closed Accounts Posts: 4,620 ✭✭✭Roen


    Cheers, it's appreciated. The guys near here have all done exactly that, dropped the good stuff in favour of less effective alternatives.
    Would agri suppliers be likely to stock it?


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    #6
    peasant
    Registered Users Posts: 17,819 ✭✭✭✭peasant


    Just as an update, I (the OP) went with three coats of creocote instead.

    So far I'm happy with it and I reckon it's better than nothing. couldn't find any Protim within my timeframe.

    Plus creocote just has that nasty smell..you just know it has to work:D
    (even the woodlice under the shed have moved out because of the stink)


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