The energy efficiency of Eurolite doors and windows is certified by the National Fenestration Rating Council (NFRC).
The U-Factor, Solar Heat Gain Coefficient (SHGC), Visible Light Transmittance (VT) and Air Leakage is shown on the official NFRC label affixed to each unit. EuroLite doors and windows can achieve the lowest U-Factor of any steel and glass fenestration product - as low as 0.18.
The North American Fenestration Standard (NAFS) “LC” rating certifies that doors and windows are suitable for all residential installations in the USA and Canada as well as commercial installations up to three stories.
High Velocity Hurricane Zone (HVHZ) certification ensures fenestration can be installed in specific coastal hurricane and wind-borne debris zones.
USA CLIMATE ZONES
COASTAL HURRICANE ZONES
More Info on Certifications
NAFS stands for North American Fenestration Standard. Through laboratory testing, fenestration is given one of four Performance Classes, which specify the likely target application from single-family residential to high-rise commercial buildings. A Performance Grade, a number from 15 to 40, is also given which specifies the maximum Design Pressure (DP) as well as water and air resistance pressure that the fenestration can withstand.
NFRC - The National Fenestration Rating Council (NFRC) certifies the energy performance of fenestration. It allows buyers to compare the insulation properties of doors and windows - the U-Factor, Solar Heat Gain Coefficient (SHGC), Visible Light Transmittance (VT) and Air Leakage.
The NFRC also confers Energy Star ratings for each of the four climate zones in the USA. These charts show the required performance needed for Energy Star in your area.
U-factor measures how much heat loss occurs through a window or door and is probably the most important figure to use for comparisons. The lower the U-Factor, the less heat is allowed to escape, which means better insulation and lower energy bills. EuroLite doors and windows can achieve the lowest U-Factor of any steel and glass fenestration products - as low as 0.18.
Current Certification Status
* The NAFS is a work of the American Architectural Manufacturers Association (AAMA)*, the Window & Door Manufacturers Association (WDMA) and the Canadian Standards Association (CSA).