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- Why build an airtight house? – Leakage problems
- kage problems ====== The external envelope of a building should be as airtight as possible and this doesn’t only apply to Passive Houses. * building damage caused by water vapour that is transported... airtightness of the envelope (see illustration). Building damage is mostly due to the absence of airtightne... y air and exhaust air spaces only function if the building envelope is sufficiently airtight. * Airtightn
- General principles for improving airtightness
- key principle for planning the airtightness of a building is that of the "continuous uninterrupted airtight building envelope", that can be outlined using the “red pe... on**//). It should be possible to trace the whole building envelope with a pencil without any breaks in each... what is more important is the\\ basic concept. A building envelope can only be airtight\\ if it consists of
- Airtightness test
- uous and adequate exchange of air (see [[planning:building_services:ventilation:basics:types_of_ventilation|... b>-value** measures the total leakage through the building envelope. The n<sub>50</sub>-value (in h<sup>-1</... ter column) is created between the inside of the building and the outside by means of a blower door test. T... e (e.g. a door) creating underpressure inside the building in order to detect leakages. The actual test invo
- Checklist: Test reports of airtightness measurements
- room-by-room calculation of the air volume of the building included? Is the calculation correct? * Has the... been documented? * Has temporary sealing of the building envelope been recorded (sealing of outdoor air an... onditions apply. Please contact your certifier or building.certification@passiv.de {{:picopen:v1.2_checklis