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Checklist: Test reports of airtightness measurements

3 Hits, Last modified: 22 months ago

* Measurement standard (norm) * Inside and outdoor temperatures * Wind velocity * Fl... f the building envelope been recorded (sealing of outdoor air and exhaust air ducts at least)? * Has ... detection at negative pressure should be carried out before the measurements, and any large leaks shou

Why build an airtight house? – Leakage problems

3 Hits, Last modified: 6 years ago

\\ moist air can flow from the inside towards the outside and thus\\ lead to condensation on colder par... omponents. As the illustration shows, air flowing out from leaks transports substantial amounts of mois... nto the construction. As the air cools on the way out, the water in the air condenses and remains insid

General principles for improving airtightness

3 Hits, Last modified: 10 years ago

errupted airtight building envelope", that can be outlined using the “red pencil method” (see the //**f... ace the whole building envelope with a pencil without any breaks in each sectional drawing. In the deta... a planning task**. Craftsman can only carry this out in an airtight manner if it has been thoroughly d... the other, this won’t stop the water from leaking out! It is essential that the concept for airtightne

Airtightness test

2 Hits, Last modified: 6 years ago

reated between the inside of the building and the outside by means of a blower door test. The blower do... b>-values) should not exceed 3 h^-1 without ventilation systems and 1.5 h^-1 with