Values are based on comparison of renewal by andersen double hung insert window shgf to the shgc for clear dual pane glass non metal frame default values from the 2006 2009 2012 2015 and 2018 international energy conservation code.
Andersen window energy ratings.
Along with the corresponding energy star version 6 0 2015 climate zones in which the product and glass type are certified.
The energy star most efficient 2020 designation recognizes the most efficient products among those that qualify for the energy star program.
Energy star most efficient 2020 fixed or picture windows.
For over 100 years andersen has built a reputation for environmental stewardship and energy efficient products.
These vertical slider windows represent the leading edge in energy efficient products this year.
These products rated certified and labeled y national fenestration rating council nfrc a non profit organization that provides fair accurate and credible energy performance ratings for windows and doors.
Andersen offers products made with our exclusive fibrex composite material that is composed of 40 reclaimed wood fiber by weight.
Energy efficient windows also have a positive impact on the environment by reducing your home s overall carbon footprint and lengthening the lifespan of its energy systems.
Energy nfrc ratings center of glass performance performance grade air infiltration sound transmission ratings altitude limits joining wind load tables and installation materials technical data.
The national fenestration rating council nfrc operates a voluntary program that tests certifies and labels windows doors and skylights based on their energy performance ratings.