Addressing the “Elephant” in the Building Envelope

Windows are the weakest part of the building envelope from a heat gain, heat loss, and safety/security perspective, yet they are neglected because of high capital investment and long paybacks.
Per the NFRC, Inefficient windows can cost the U.S. $50 billion annually in energy waste.
Some of the ways to address inefficient windows are replacing them with high performance ones, using PV, using some sort of shading device or applying an all-season window film. Each has its pros and cons.
Window film technologies are now able to keep heat where it belongs, outside in the summer and inside in the winter. All Season Intelligence 65 can lower the solar heat gain in the summer, of an existing double pane window, up to 60% while increasing wintertime insulation by over 32%. Adding window film technologies to existing windows provides a sustainable and cost-effective solution to reducing the energy bills in a building. On single pane, the numbers are more impressive, lowering shgc by up to 75% and increasing wintertime insulation by up to 45%.
There are several measurement and verification tools including energy modeling.
The portfolio also addresses safety/security, anti-graffiti, bird strike, decoration and upgrading the exterior look of the windows.