Differences

This shows you the differences between two versions of the page.

--- planning:building_services:ventilation:differentiation_between_vv_and_vn50_values [2023/01/30 11:23] – [Vn50 – Net air volume for pressurisation test] zbastian
+++ planning:building_services:ventilation:differentiation_between_vv_and_vn50_values [2023/01/30 11:37] – [Vn50 – Net air volume for pressurisation test] zbastian
@@ Line 23: / Line 23: @@
 For further reference, please see the current PHPP manual (PHPP 9 manual: section 21.2.9).
-===== V<sub>n50</sub> – Net air volume for pressurisation test =====
+===== Vn50 – Net air volume for pressurisation test =====
-The air volume V<sub>n50</sub> within the heated building envelope is the volume that will be used for calculating [[planning:airtight_construction:general_principles:blower_door_test|the n50 air leakage value]]. It is supposed to indicate the //actual// volume of air that will be heated or cooled within the building and should be calculated separately for each room. The calculation should be carried out in accordance with the EN 13829 standard and must be clearly documented. The total air volume within the thermal envelope should be taken into account.
+The air volume V<sub>n50</sub> within the heated building envelope is the volume that will be used for calculating [[planning:airtight_construction:general_principles:blower_door_test|the n50 air leakage value]]. It is supposed to indicate the //actual// volume of air that will be heated or cooled within the building and should be calculated separately for each room. The calculation should be carried out in accordance with detailed rules given in the [[https://passivehouse.com/downloads/03_building_criteria_en.pdf| Criteria for Buildings]], section 3.2.10 Airtightness of the building envelope.
 ==== Calculation methodology ====