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Every Window Design is Extensively Field-Tested. (If You Consider 110º Desert Sand a "Field.")

Years ago, we built a house smack dab in the middle of the Arizona desert – southern exposure on the outside – air conditioning on the inside. It's more abuse than most windows will ever endure. It's also the perfect environment to push our test products to the limit in long-term research trials. If a product can't hack it in this home, you won't see it in yours.

Our Products Meet the Performance Requirements of the Following:

NFRC Thermal Performance Standards
We manufacture all AMSCO® windows to meet or exceed thermal standards for maximum energy efficiency set by the National Fenestration Rating Council. This means that our products help to cut heating and cooling costs in addition to reducing greenhouse emissions.

In order to meet the NFRC guidelines, products must meet predetermined criteria for:
  • U-factor
  • Solar heat gain
  • Visible transmittance
  • Air leakage

AAMA Structural Standards
Our products meet or exceed strict structural performance standards as established by American Architectural Manufacturers Association. Tests include:
  • Resistance to air infiltration
  • Water leakage
  • Forced entry
  • Wind load pressure
  • Heat resistance (in excess of 300 degrees)
  • Weatherability (performance in various climates)

ENERGY STAR® Rating
You can be certain that your AMSCO purchase represents the finest in energy efficiency, because all AMSCO windows have earned the ENERGY STAR for meeting the strict guidelines set by the EPA and the US Department of Energy.