ENERGY STAR’s 2015 Most Efficient Fiberglass Windows - What it Takes to be Qualified

ENERGY STAR Windows - 2015's Most Efficient Windows


When looking for fiberglass windows for your home, seeing the Energy Star label assures you that the product is guaranteed to save you money, energy and will be a beneficial part of protecting the environment. This year, Energy Star has introduced the “Most Efficient of 2015” product category for a variety of different products and Fibertec’s fiberglass windows have been included in this category. This category distinguishes products from the standard ENERGY STAR rating. The most efficient window products under this category deliver state of the art technology and energy efficiency that are presented in the most advanced approach. Part of being included in the category is being ENERGY STAR certified with energy efficient windows that will be a presentable candidate for Energy Star products. The energy efficiency of fiberglass windows added to this category are qualified by looking at the U-factor and SHGC (Solar Heat Gain Co Efficient) rating specific to the following regions: North, North-Central, South-Central and South. The following table shows the values that apply to the 2015 Most Efficient Windows category:

Climate Zone U-Factor SHGC
Northern ≤ 0.20 ≥ 0.20
North-Central ≤ 0.20 ≥ 0.40
South-Central ≤ 0.20 ≥ 0.25
South ≤ 0.20 ≥ 0.25
energy star windows