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Pumped cavity wall insulation

  • 28-01-2013 10:11pm
    #1
    Dtp79
    Closed Accounts Posts: 2,097 ✭✭✭


    Can pumped insulation be used in timber framed houses? My house is timber framed. 10 years old. There's fibreglass on the inside behind the slab. Between the outside concrete block and timber is roughly 3 inches of space. Could those pumped beads be used ?


Comments

  • #2
    muffler
    Registered Users, Registered Users 2 Posts: 46,550 ✭✭✭✭muffler


    In a word, no. Both leafs of the cavity wall have to be masonry


  • #3
    Dtp79
    Closed Accounts Posts: 2,097 ✭✭✭Dtp79


    muffler wrote: »
    In a word, no. Both leafs of the cavity wall have to be masonry
    Thanks. Can I ask why though?


  • #4
    muffler
    Registered Users, Registered Users 2 Posts: 46,550 ✭✭✭✭muffler


    Not being short here but it isn't certified for use in that type of construction. The IAB cert for its use can be viewed here


  • #5
    sydthebeat
    Subscribers Posts: 42,171 ✭✭✭✭sydthebeat


    Dtp79 wrote: »
    Thanks. Can I ask why though?

    mainly because the cavity in a timber frame house is there to ventilate away all the water vapour from the house. Most timber frames have ventilation holes frequently through the walls.
    If you fill the cavity the moisture cannot ventilate away. It is trapped causing rot on structural timbers which is not a good thing at all ;)


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