Frost inside an attic is a sign that something is terribly wrong. Water vapor is condensing on the cold roof surfaces and then freezing. The source of the water must be found and stopped. Wood rot and mold are a reality if the frost continues to form.
Humidity and temperature are correlated. Turn down your humidifier output as the outside temperature drops, or expect condensation problems. Too little humidity causes static electricity and a drag on fuel bills, but too much can cause damage.
Condensation problems frustrate homeowners in nearly every part of the U.S. High humidity and water vapor from the ground and indoor sources are culprits forming those dreaded water beads all over your new windows! Fight condensation problems with high quality replacement windows, foundation vapor barriers and control of humidity inside your home.
The best heating system uses radiant heat and air circulation. If your home begins frosting on inside walls, dripping water on windows or window frames your house may be too humid. Or, your newly installed system may be pumping too much moisture into the air.