The Blind Alley, Custom Drapery and Window Covering Specialists serving Bellevue, Washington and the Greater Seattle area since 1984.


HUNTER DOUGLAS DUETTE SHADES
ENERGY EFFICIENCY

During the hottest months of the year, over half the heat in a home comes in through the windows. According to the U.S. Department of Energy, this can add 15 to 20 degrees to interiors and force air conditioners to work two to three times harder. And in winter months, heat lost through windows can account for as much as 10 to 25% of a heating bill.

Duette Shades Offer Solutions

Fortunately, window coverings - particularly Duette honeycomb shades - can protect against heat gain and harsh glare in summer and heat loss in winter. Duette shades boast a unique construction that traps air in the honeycomb pleats and insulates against summer heat and winter cold. In fact, Duette Architella™ honeycomb shades are the most energy-efficient nationally branded window covering on the market today!

Hunter Douglas Duette Architella honeycomb shades boast a very high R-value (resistance to heat flow) of 7.73 in winter, while a typical double-paned window only has an R-value of 1.75. And, a single layer of uncovered glass has an R-value of about 0.88. The higher the R-value, the more insulation a window covering provides in the closed (lowered) position. This means less heat is lost and more energy is saved.

Hunter Douglas Duette Architella honeycomb shades boast a very high R-value (resistance to heat flow) of 7.73 in winter, while a typical double-paned window only has an R-value of 1.75. And, a single layer of uncovered glass has an R-value of about 0.88. The higher the R-value, the more insulation a window covering provides in the closed (lowered) position. This means less heat is lost and more energy is saved.

Keeping Rooms Cooler

Duette Architella honeycomb shades also boast a low summer shading coefficient, which measures a product's ability to shade against solar heat gain, and reflect heat to make rooms cooler. The lower the summer shading coefficient, the greater the percentage of heat reduction. The percentage of heat reduction is calculated, subtracted from 100 and then turned into a decimal.

For example, Duette Semi-Opaque Architella honeycomb shades stop 84% of solar heat from entering a home, which means they have a very low summer shading coefficient of 0.16. Duette Architella honeycomb shades in opaque fabric with a metallized core offer even more protection from solar heat gain. They block 87% of solar heat and have a shading coefficient of 0.13.

Let the Sun Shine!

And when dealing with direct sunlight, many Duette honeycomb shades have neutral white fabric backings, regardless of the color selected, which reflect the sunshine. This also allows them to have a uniform look from the exterior. In addition, Duette honeycomb shades offer superior protection - up to 99.9% - against the sun's harsh UV rays that can fade and eventually damage upholstery and drapery fabrics, carpeting, furniture, floors, as well as valuable artwork.

Hunter Douglas Duette Energy Savings

Duette honeycomb shades help keep out the cold in winter and heat in summer. The patented honeycomb design creates air pockets that give each shade a remarkable insulating quality.

   Is Energy Efficiency your priority? Then Hunter Douglas Duette Architella Honeycomb in Eclipse Opaque is the best choice amongst all of the Hunter Douglas Duette products.

Is Energy Efficiency your priority? Then Hunter Douglas Duette Architella Honeycomb in Eclipse Opaque is the best choice amongst all of the Hunter Douglas Duette products.

FABRIC TYPE

WINTER
R-VALUE*
SUMMER
SHADING**
   1-1/4" Opaque Architella 7.73 .13
   3/4" Opaque Architella 7.22 .14
   1-1/4" Semi-Opaque Architella 6.02 .16
   Triple Honeycomb 5.69 .18
   3/4" Semi-Opaque Architella 5.48 .18
   Double Honeycomb 5.22 .19
   3/8" Opaque 6.25 .38
   3/4" Opaque 5.23 .36
   1-1/4" Opaque 6.63 .26
   3/8" Semi-Opaque 5.37 .20
   3/4" Semi-Opaque 5.17 .19
   1-1/4" Semi-Opaque 5.51 .18
   3/4" Semi-Sheer 3.96 .25
   3/4" Sheer 3.61 .78
   1-1/4" Sheer 4.03 .24
* R-value measures resistance to heat loss. The higher the R-value, the more insulation the product provides.

** Summer shading coefficient measures the amount of heat passing through a covered window versus a bare window. The lower the number, the less heat is transferred. In summer, less heat transfer means a cooler room.

Ratings may change slightly depending on variances in glazing, fit and color. R-values shown above are factored using Low-E double glazing.



Hunter Douglas Duette Ultraviolet Protection

FABRIC TYPE

99% 95% 90% 85% 80% 75% 70% 65% 60% 55%
 Architella 3/4" Semi-Opaque

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 Phenomena Triple Honeycomb

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 Encore Double Honeycomb

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 Panache Encore Double Honeycomb

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 Classic Eclipse 3/8" Opaque

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 Elite Eclipse 3/4" Opaque

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 Classic 3/8" Semi-Opaque

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 Elite 3/4" Semi-Opaque . . . . . . . . .
 Batiste Refined 3/4" Semi-Opaque . . . . . . . . .
 Batiste Textured 3/4" Semi-Opaque . . . . . . . . .
 Panache 3/4" Semi-Opaque . . . . . . . . .
 3/8" Commercial™ . . . . . . . . .
 3/4" Commercial™ . . . . . . . . .
 Expressions 3/4" Semi-Sheer . . . . . . . . .
 Whisper 3/4" Sheer . . . . . . . . .

The patented honeycomb design also helps to protect home furnishings. Duette honeycomb shades are ideal in any climate, even those with abundant humidity, heat and sunshine. While many shades wilt and wither from ultraviolet sunrays and humidity, Duette shades are designed and tested to withstand whatever Mother Nature serves up.

Duette honeycomb shades block up to 99% of the sun's damaging ultraviolet rays, depending on your fabric selection.


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