Polaris Thermal Performance Ratings

How We Measure Up
Polaris energySMART Intercept Stainless with Foam Fill Ratings

Thermal Performance Ratings:
U-Value (U):
Solar Heat Gain Coefficient (S):
Measures how well a product prevents heat from
escaping a home or buidling. U-Factor ratings
generally fall between 0.20 and 1.20. The lower the
U-Factor, the better a product is at keeping heat in.
The U-Factor is particularly important in
northern climates.

Measures how well a product blocks heat from the
sun. SHGC is expressed as a number between 0 and
1. The lower the SHGC, the better a product is at
blocking unwanted heat gain. SHGC is particularly
important in southern climates.

Visible Transmission (V):
Condensation Resistance (C):
Measures how much light comes through a product.
VT is expressed as a number between 0 and 1. The
higher the VT, the higher the potential for daylighting.

A measure of the effectiveness of a window or
glazing system to reduce the potential for
condensation. The higher the condensation
resistance factor, the more efficient the window
and glazing system.

Family of High Performance Glass

The glass in a window is referred to as an Insulating Glass (IG) unit. Panes of glass are held together by a spacer. This creates
an insulating air space between the panes. We offer IG unit choices to block damaging ultra violet rays, block the cold and hold
your warmth. According to the U.S. Department of Energy windows could account for 10% to 25% of your energy bill. Windows
manufactured with Low-E glass and argon gas to replace your single pane windows that have clear glass will reduce your
energy consumption.

Foam Filling Benefits
Not all vinyl-framed windows are created equal. Some are insulated; some
are not. Your energy dollars could be leaking out of your window frames.
If they are not filled with ENVIRONMENTAL GREEN™ polyurethane
foam - the same type of foam that insulates your refrigerator and thermos.

Our window frames insulated with ENVIRONMENTAL GREEN™ foam give you:

  • Increased Energy Savings
  • Lowers the U-Value which increases thermal performance

Maximize your window energy efficiency. Insist on ENVIRONMENTAL GREEN™
polyurethane foam-filled window frames.

Polaris Environmental Green™ Foam Fill