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  • 15-07-2020 04:19PM
    #1
    teednab-el
    Site Banned Posts: 2,972 ✭✭✭


    What noticeable changes would bring a house from B1 rating to A3/A2?


Comments

  • #2
    sydthebeat
    Subscribers, Paid Member Posts: 44,857 ✭✭✭✭sydthebeat


    teednab-el wrote: »
    What noticeable changes would bring a house from B1 rating to A3/A2?

    MHRV and very good air tightness result


  • #3
    teednab-el
    Site Banned Posts: 2,972 ✭✭✭teednab-el


    sydthebeat wrote: »
    MHRV and very good air tightness result

    Another question. I am building at the moment and got a provisional BER of A3 for my build. I have airtightness and MHRV. 150mm pumped cavity and air to water and triple glazing windows. What could one do to get to A2 when the BER is finally done at completion?


  • #4
    sydthebeat
    Subscribers, Paid Member Posts: 44,857 ✭✭✭✭sydthebeat


    teednab-el wrote: »
    Another question. I am building at the moment and got a provisional BER of A3 for my build. I have airtightness and MHRV. 150mm pumped cavity and air to water and triple glazing windows. What could one do to get to A2 when the BER is finally done at completion?

    not being smart but whoever did your provisional assessment would be able to tell you this, specifically, in about 15 mins of checking.... assuming they were offering you a specification.

    all we can do here is give you generals with no guarantees.


  • #5
    teednab-el
    Site Banned Posts: 2,972 ✭✭✭teednab-el


    sydthebeat wrote: »
    not being smart but whoever did your provisional assessment would be able to tell you this, specifically, in about 15 mins of checking.... assuming they were offering you a specification.

    all we can do here is give you generals with no guarantees.

    No problem. Will check it out.


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