Editing Condensation (section)

==Condensation in building construction==
[[Image:Window in Ireland.jpg|right|thumb|Condensation on a window during a rain shower.]]
Condensation in building [[construction]] is an unwanted [[phenomenon]] as it may cause [[Damp (structural)|dampness]], [[mold health issues]], [[wood]] [[Dry rot|rot]], [[corrosion]], weakening of mortar and masonry walls, and energy penalties due to increased [[heat transfer]]. To alleviate these issues, the indoor air humidity needs to be lowered, or air ventilation in the building needs to be improved. This can be done in a number of ways, for example opening windows, turning on extractor fans, using dehumidifiers, drying clothes outside and covering pots and pans whilst cooking. Air conditioning or ventilation systems can be installed that help remove moisture from the air, and move air throughout a building.<ref name=PropertyHive>{{cite web |url=http://www.wisepropertycare.com/condensation |title=Condensation |publisher=Property Hive |url-status=dead |archive-url=https://web.archive.org/web/20131213114908/http://propertyhive.org/condensation/ |archive-date=2013-12-13}}</ref> The amount of water vapor that can be stored in the air can be increased simply by increasing the temperature.<ref name=PropertyHive /> However, this can be a double edged sword as most condensation in the home occurs when warm, moisture heavy air comes into contact with a cool surface. As the air is cooled, it can no longer hold as much water vapor. This leads to deposition of water on the cool surface. This is very apparent when central heating is used in combination with single glazed windows in winter. {{cn|date=March 2025}}

Interstructure condensation may be caused by [[thermal bridge]]s, insufficient or lacking insulation, [[damp proofing]] or [[insulated glazing]].<ref>{{cite web |url=http://www.diydata.com/problem/condensation/condensation.php |title=Condensation around the house - what causes condensation |website=diydata.com |url-status=live |archive-url=https://web.archive.org/web/20080113064649/http://www.diydata.com/problem/condensation/condensation.php |archive-date=2008-01-13 }}</ref>