Interior Climate Control

8.5

Condensation And/Or Frost On Windows

Acceptable Performance/Condition
Condensation may occur on interior window surfaces.

Warranty
None.
Damage caused by dampness or condensation due to failure by the homeowner to maintain adequate ventilation is excluded from the warranty.

Action
None.

Remarks
Condensation occurs when water vapour in indoor air contacts cool surfaces such as window glass. Condensation on interior window surfaces is common during cold seasons. When outdoor temperatures are well below freezing, ice may form at the bottom of the window. Since it is important for homeowners to maintain proper humidity levels within the home to prevent damage to other components such as hardwood flooring and for physical health, some condensation on windows may be expected. Indoor humidity levels may be controlled by dehumidification, ventilation or air conditioning. Interior air moving over the windows can help control condensation. Heavy draperies or window coverings that cover windows and block heat diffusers can prevent air flow. Running the furnace fan continuously can also help to control condensation on windows.