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Airtightness measurements in Passive Houses

49 Hits, Last modified: 24 months ago

==== Airtightness measurements in Passive House buildings are to be carried out uniformly worldwide accord... The air volume V_n50 within the heated building envelope is the volume that will be used for calc... e of air that will be heated or cooled within the building and should be calculated separately for each room... en in the [[https://passivehouse.com/downloads/03_building_criteria_en.pdf| Criteria for Buildings]], sectio

Why build an airtight house? – Leakage problems @planning:airtight_construction:general_principles

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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

Airtightness test @planning:airtight_construction:general_principles

9 Hits, Last modified: 6 years ago

uous and adequate exchange of air (see [[planning:building_services:ventilation:basics:types_of_ventilation|Types of ventilation]]). Most newer buildings are so airtight, that a sufficunet exchange of a... ys the level of airtightness in newly constructed buildings is usually too low for damage-free envelope comp... b>-value** measures the total leakage through the building envelope. The n₅₀-value (in h<sup>-1</

Airtightness Measurement of High-Rise Buildings

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======Airtightness Measurement of High-Rise Buildings====== Due to the particularly strong wind and thermal influences in high-rise buildings, special rules must be taken into account for bl... rrying out airtightness measurements in high-rise buildings. The influence of the temperature difference and the height of the building on the pressure difference between the bottom and

General principles for improving airtightness @planning:airtight_construction:general_principles

7 Hits, Last modified: 9 years ago

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

Checklist: Test reports of airtightness measurements @planning:airtight_construction:general_principles

6 Hits, Last modified: 18 months ago

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... ted. **Exception:** For the measurement of tall buildings (e.g. high-rise buildings) special boundary conditions apply. Please contact your certifier or building.ce

General Principles

1 Hits, Last modified: 10 years ago

ight_construction:general_principles:principles_for_improving_airtightness|How to make a building airtight]]