In the winter, as much as 40% of the heat that escapes a home flows through the windows. During the summer, heat from the sun’s rays coming through the windows can make it harder to keep a home cool. Energy-efficient window treatments an help decrease heat loss and heat gain, thereby reducing heating and cooling costs.
Let Window Treatments act as Insulation
Some treatments are more energy efficient than others, so make sure to check a product’s R-value and Solar Heat Gain Coefficient (SHGC) ratings.
- Save money on utility bills
- Conserve natural resources
- Lessen fading of carpets, fabrics, artwork and wood
The Value of R-Value
R-value is measure of a product’s ability to resist heat flow, which is especially important in the cool winter months. The higher the R-value number, the more insulation it provides and the better it is at reducing heat loss.
A bare, low-e double-glazed window has an R-value of about 3.5. Add property insulated Duette® Architella™ 1 1/4” honeycomb shade with Panache™ opaque fabric and the R-vlaue increases to 7.86, more than doubling the energy efficiency and reducing heat loss by over 50%.
Solar Heat Gain Coefficient Explained
Solar Heat Gain Coefficient (SHGC) is the amount of solar heat that passes through a window, where 0 = none and 1 = all. The lower a product’s SHGC, the less solar heat it transmits and the cooler the home will stay in the warm summer months.
The SHGC of a bare, double-glazed window is 0.76, which means 76% of solar heat is transmitted through it. Add an opaque Duette® Architella™ shade and the solar heat gain coefficient drops as low as 0.15 — only 15% of the solar heat is transmitted, reducing cooing costs.
Protect Your Home from UV Light
UV exposure is not only harmful to skin, it can also damage furnishings, floors and fine art. Most Hunter Douglas products have fabric options that filter out 99% of these harmful rays in the closed position.
Many Hunter Douglas window fashions including Silhouette® window shadings and Luminette® Privacy Sheers, filter out as much as 87% of harmful UV rays in the open-vane position.