1. Common Defect or Problem – Condensation on skylights
Performance Standard – All skylights can develop condensation due to high humidity levels.
Builder Repair Responsibility – Builder not responsible for humidity levels in home. Bathroom ventilating
fans should always be used or window opened.
Craig’s Comments: If the condensation is between the panes of glass or plastic, the window is defective. I would say that under many situations, the builder IS responsible for indoor humidity levels. Clothes dryers and bathroom exhaust fans that are not installed correctly can increase humidity levels. Improperly sized or installed air conditioners can also increase indoor humidity levels, as can a defective one. Excessive infiltration can lead to high humidity levels. One of the biggest sources of winter humidity is unvented gas fireplaces or other combustion devices (like space heaters.) Backdrafting gas furnaces or water heaters can also lead to high humidity levels.