With the proper options, many JELD-WEN® windows and doors will meet ENERGY STAR® requirements (for details, see the "our products" section). ENERGY STAR is a government-backed program that supports environmental protection. We've been a proud ENERGY STAR partner since 1998.
The map below shows guidelines for windows in four climate zones. To be ENERGY STAR qualified, products must be optimized to meet any area's specific demands. For example, windows in northern states should help reduce heat loss in the winter.
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