Overview:
- An issue in virtually every Milgard sales area.
- U-factors -- which measure heat loss through a window unit -- are your best guide for what product to use in cold climates.
- Most building officials and codes refer to winter night time U-factors.
Solution Ideas
Glass
- Low-E2 for superior U-factors and keeping radiant heat trapped indoors.
- Argon gas -- for 20% better U-factors than ordinary air
Frame
- All Milgard frame types can withstand extreme cold.
- Vinyl Windows -- for superior U-factors.
- Wood Windows -- for superior U-factors.
- Thermal-break Aluminum windows -- for good U-factors.
Other Considerations
- Air infiltration has only a minor impact on the amount of heat that gets out of a home, and is not reflected in the U-factor.
- Cold window surfaces and air infiltration cause drafts which can greatly reduce comfort inside a home.
- Cold window surfaces cause moisture to accumulate in the form of condensation.
