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attic water tank insulation

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  • 22-09-2013 11:49pm
    #1
    Linto
    Registered Users Posts: 171 ✭✭


    Is it OK to simply wrap the earthwool insulation used for attic floor and wrap some around the tank?
    This is what the builders did. They tell me its fine but it looks messy and I would have thought a lagging jacket would be best.
    Any advice?


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    #2
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    Make sure the tank has a lid. Then the insulation should be in plastic containment. The tank lagging jackets that you can buy are pretty poor.
    I, myself, built mine with rigid Kingspan polyiso boards, enveloping the whole of the tank apart from underneath it. I used wire coat hangers cut into pieces, formed into V shapes & pushed into the sides to hold each corner of the boards to each other, etc. Worked a treat.


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    #3
    Linto
    Registered Users Posts: 171 ✭✭Linto


    shane0007 wrote: »
    Make sure the tank has a lid. Then the insulation should be in plastic containment. The tank lagging jackets that you can buy are pretty poor.
    I, myself, built mine with rigid Kingspan polyiso boards, enveloping the whole of the tank apart from underneath it. I used wire coat hangers cut into pieces, formed into V shapes & pushed into the sides to hold each corner of the boards to each other, etc. Worked a treat.
    Why is the plastic containment important?


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    #4
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    Linto wrote: »
    Why is the plastic containment important?

    2 reasons. One to stop bits of insulation fibres from falling into your water tank. Also a wee mouse may like to build his home in said insulation & may be pooping into your tank, admittedly unknowingly!
    Second reason, if the insulation is laid across the tank, the evaporation will soak into your insulation. Once fibre insulation gets wet it is useless.


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