treating new timber joists

Discussion in 'Building' started by marsaday, 20 Nov 2009.

  1. marsaday

    marsaday

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    A final point is to remember to treat any new timber against rot or insect damage before use. Failure to do so will cause horrendous problems in years to come.


    i took this quote off another web site. is this correct to treat all new timber in your new loft floor ?
     
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  3. r896neo

    r896neo

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    that sounds like prophet of doom stuff to me but why not do it. All joists and rafters used during a new build are always treated but that is partly to do with the fact that they will sit in the rain for weeks/months until the roof is done. Indoor work, i.e. studs etc are much less commonly treated.

    It is good practise for timber within a suspended ground floor cavity to be treated but as for a loft if you are merely converting it's not absolutely necessary but if you are doing major rennovations and the area will not be weather tight then it is a good idea because It's merely a case of ordering the timber treated and its not a massive extra charge
     
  4. jeds

    jeds

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    If you live in one of the specified areas of Surrey, Runymede etc. all timbers must be treated against Longhorn Beetle. Otherwise general treatment of all timber isn't necessary.

    End grain should be treated if the timber bears on the external walls and all timber near the ground should be treated - i.e. ground floor joists etc. I don't think it's strictly a requirement but I also specify treatment of roof end grain as well - just because I've rarely seen a 25 yr old roof that didn't have some rot to the rafter ends.
     
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