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2745 Bridge St. - Victoria, B.C. Canada - Phone: 250-412-8014 - Fax: 250-384-0204
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Design Trends

Insulate Against Cold Reduce Solar Heat Gain Filter Natural Light
R-value is a 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 around 3.5. Add a properly installed Duette® Architella™ 1¼ honeycomb shade with Panache&trade opaque fabric and the R-value peaks at 7.86, more than doubling the energy efficiency and reducing heat loss by over 50%.
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, which can help a home stay cooler 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 a Duette® Architella™ 1¼ shade with Elan™ opaque fabric and the solar heat gain coefficient drops to 0.15 - only 15% of the solar heat is transmitted.
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 fasions, including Silhouette® window shadings and Luminette® Privacy Sheers, filter out as much as 86% of harmful UV rays in the open vane position.

Hunter Douglas makes products with a range of R-values and SHGC ratings so you can meet both your design and energy efficiency needs.

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 treatmetns can help decrease heat loss and heat gain, thereby reducing heating and cooling costs.

Some treatments are more energy efficient than others, so make sure to check a product's R-value and Solar Heat Gain Coefficient (SHGC) rating.
Hunter Douglas window fasion
plus low-e double-glazed window
Total R-Value Total SHGC
Duette Architella® honeycomb shades 7.86 0.21
Duette® honeycomb shades (excl. sheers) 6.44 0.29
Applause® honeycomb shades 5.89 0.29
Summerwind™ polysatin shutters 5.68 0.22
Brilliance® pleated shades 4.68 0.35
Alouette® LightLouvers 4.64 0.27
Vignette® Modern Roman Shades 4.53 0.28
Designer Roller Shades 4.52 0.36
Luminette® Privacy Sheers 4.36 0.23
Provenance® woven wood shades 4.33 0.33
Designer Screen Shades 4.25 0.44
Nantucket™ window shadings 4.05 0.35
Silhouette® window shadings 4.02 0.34
Pirouette® window shadings 3.95 0.30
Park Lane™ Privacy Sheers 3.94 n/a
Country Woods® wood blinds 3.94 0.29
Chalet Woods® wood blinds 3.94 0.30
EverWood® Collection
alternative wood blinds
3.94 n/a
Hunter Douglas Custom Vertical Blinds 3.94 0.22
Skyline™ Gliding Window Panels 3.88 0.28
Modern Precious Metals®
aluminum blinds
3.87 0.33
Information provided courtesy of Hunter Douglas.

                                                                                                                                                                                                                              
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