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Are internal doors measured for airtightness?

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  • 11-08-2019 2:49pm
    #1
    Mossy
    Registered Users Posts: 221 ✭✭


    ... or does BER just measure external doors?


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    #2
    sydthebeat
    Subscribers Posts: 41,292 ✭✭✭✭sydthebeat


    The air tightness test just measures the extrernal envelope


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    #3
    Charlie19
    Registered Users Posts: 11,747 ✭✭✭✭Charlie19


    No.


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    #4
    Wartburg
    Registered Users Posts: 134 ✭✭Wartburg


    It´s the air tight envelope, which gets tested for BER inclusion. In the majority of the buildings the air tight envelope is equivalent to the building envelope, but sometimes you have the air tight envelope further inside of your house. Storey and a halfs are a good example, where the majority of the crawl spaces are still made as cold space. I´ve seen plenty of examples where carpenters installed halved internal doors to allow access into the crawl space for storage and service. A nightmare for the air tightness performance, because such doors are never air tight. Even not by installing some rubber seal, bought at Lidl or Aldi, and a catch.
    Another example is a built-in garage or boiler room, which was left without an air tightness strategy for cost reason. If you have an internal access to this section, you should have an air tightness strategy (beside a fire and smoke protection strategy) for this access in place.


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