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--- planning:thermal_protection:windows [2025/08/29 11:16] – [Windows in refurbishment] yaling.hsiao@passiv.de
+++ planning:thermal_protection:windows [2025/08/29 13:54] (current) – [Ventilation] yaling.hsiao@passiv.de
@@ Line 1: / Line 1: @@
 ====== Windows ======
-Windows are an essential factor in assuring pleasant indoor conditions. In cold climates, poorly insulated windows will cause relatively cold surfaces at the facade and will require active heating near the windows to compensate for cold air drops, draughts and “cold radiation” caused by the cold surfaces. Highly insulated windows, on the other hand, will make an active contribution to increasing the level of comfort. High performance windows, specifically developed to meet the requirements of Passive Houses, are offered by an increasing number of manufactureres across the globe. A list of PHI Certified Passive House windows can be found [[https://database.passivehouse.com/en/components/list/group_4|here]].
+Windows are an essential factor in assuring pleasant indoor conditions. In cold climates, poorly insulated windows will cause relatively cold surfaces at the facade and will require active heating near the windows to compensate for cold air drops, draughts and “cold radiation” caused by the cold surfaces. Highly insulated windows, on the other hand, will make an active contribution to increasing the level of comfort. High performance windows, specifically developed to meet the requirements of Passive Houses, are offered by an increasing number of manufactureres across the globe. .
 [[.:windows:requirements_for_windows|]]\\
 [[.:windows:types_of_glazing_and_their_specific_values|]]\\
 [[.:windows:requirements_for_windows:required_u-values_for_passive_house_windows|]]\\
+[[https://database.passivehouse.com/en/components/list/group_4|Certified Passive House windows ]]
@@ Line 32: / Line 32: @@
 ==== Comfort ====
-Thermal comfort is a defining living quality. The cold air pockets, drafts, uneven temperatures, and heat losses can all influence the comfort. With PHPP circulation, these factors can be calculated and controlled, ensuring balanced air circulation and consistently meeting the comfort standards.
+Thermal comfort is a defining living quality. The cold air pockets, drafts, uneven temperatures, and heat losses can all influence the comfort. With PHPP circulation, these factors can be calculated and controlled, ensuring balanced air circulation and meeting the comfort standards.
 [[:basics:passive_houses_in_different_climates:study_passive_houses_for_different_climate_zones:adapted_window_qualities|]]\\
@@ Line 40: / Line 40: @@
-===== Certification =====
-Global growth in energy-efficient construction is driving demand for certified, high-performance windows.We certify energy-efficient components to international standards, ensuring they meet the criteria for energy performance, comfort, and hygiene.
-[[https://passivehouse.com/03_certification/01_certification_components/02_certification_criteria/02_certification_criteria.htm|Certification criteria for Passive House Transparent Building Components ]]\\
+===== Ventilation =====
-{{ :picopen:03_certification_criteria_window-installation-system.pdf |Criteria: Transparent Building Components and Opening Elements in the Building Envelope}}\\
-Article: [[.:windows:window_certification:start|]]\\
+Window ventilation ensures the sufficient fresh air replacement. However, if ventilation is insufficient, the air quality will be poor and there will be a risk of condensation occurring. If too much ventilation takes place, the air will become too dry and energy consumption will become excessively high.  Read more about [[https://passipedia.org/planning/building_services/ventilation/basics/types_of_ventilation#purge_ventilation_through_windows|Purge ventilation through windows]]
-===== Ventilation =====
 [[..:refurbishment_with_passive_house_components:prospects_for_the_modernisation_of_existing_buildings_using_highly_efficient_components:home_ventilation|]]\\
@@ Line 57: / Line 51: @@
 ===== Shading =====
+Window shading is important, but roller shutters and exterior blinds can create thermal weak points. Proper calculation and careful planning are needed to optimize their performance.
 [[:efficiency_now:building_envelope:insulating_a_roller-shutter_box|]]\\
@@ Line 62: / Line 58: @@
 Tool: [[..:tools:reductionfactor_shading|]]
+===== Certification =====
+Global growth in energy-efficient construction is driving demand for certified, high-performance windows.We certify energy-efficient components to international standards, ensuring they meet the criteria for energy performance, comfort, and hygiene.
+[[https://passivehouse.com/03_certification/01_certification_components/02_certification_criteria/02_certification_criteria.htm|Certification criteria for Passive House Transparent Building Components ]]\\
+{{ :picopen:03_certification_criteria_window-installation-system.pdf |Criteria: Transparent Building Components and Opening Elements in the Building Envelope}}\\
+[[.:windows:window_certification:start|]]\\
 ===== Windows in refurbishment =====