Air temperature and humidity levels are important issues for occupant health and comfort. A professional design and examination of the building's air barrier protects from draughts and dry indoor air resulting from air leaks through joints and gaps. Construction damages like mould caused by moisture finding its way into the insulation can be avoided. An airtight envelope protects from energy losses and takes care of the environment and the economy.

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Information material about the air tightness test 

>The BlowerDoor test<