The promises are based on two new window products tuned to different climatic needs. Both windows contain Southwall's Heat Mirror plastic film suspended inside an insulated glazing unit. This creates two chambers filled with inert gas. Shading coefficient describes the amount of solar heat that passes through the window.
Higher numbers mean more heat can penetrate.
This window would be appropriate for northern climates where solar heat gain is beneficial. TC stands for twin coat, meaning that low-e coatings have been applied to both sides of the film. The shading coefficient is 0.41. Hurd's windows also employ warm edge spacers and wood frames with exterior aluminum cladding. All Oikos pages copyright 1996 - 2001, Iris Communications, Inc .