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Q: What is R-value on cellular shades?
A:
R-value indicates a material’s resistance to heat flow. Higher R-values mean better insulation. With cellular (honeycomb) shades, the air pockets slow heat transfer, improving comfort in both winter and summer.Q: How do single-cell and double-cell shades differ in R-value?
A: Double-cell shades typically provide higher R-values than single-cell because there are more air chambers. Deep pleats and tighter weaves also help increase thermal resistance.
Q: Do light-filtering vs. blackout fabrics change the R-value?
A: Yes. Blackout fabrics usually add mass and layers, boosting R-value compared to light-filtering fabrics. If insulation is your priority, choose double-cell with blackout fabric.
Q: Why do published R-values vary between brands?
A: Test methods, shade size, fabric composition, liners, and even mounting style can change results. Use R-value as a comparison within a brand or product family, and consider overall build and fit.
Q: R-value vs. U-factor—what’s the difference?
A: U-factor measures how quickly heat flows through a product (lower is better). R-value is the inverse (higher is better). Some manufacturers list one or the other; both describe insulation.
Q: Inside mount or outside mount—does fit affect insulation?
A: Yes. Reducing edge gaps improves performance. An outside (overlap) mount that extends past the frame helps block drafts. For inside mounts, add side returns or layer with drapery.
Q: What R-value should I aim for in my climate?
- Cold climates: Double-cell + blackout for the highest R-value.
- Mixed climates: Double-cell light-filtering balances light and insulation.
- Hot/sunny climates: Light-colored cellular fabrics reduce heat gain; consider blackout on west/south windows.
Q: Can installation upgrades improve effective R-value?
A: Add side channels, top valances, or layer with lined drapery to cut convection around the shade and boost real-world performance.
Shop Cellular Shades
Ready to compare styles and fabrics? See our full Cellular Shades collection for single-cell, double-cell, light-filtering, and blackout options.
Energy efficient window treaments can help with energy loss. Knowing the R-Value of the shade or blind is important. R value is assigned to any building materials and is used to tell the amount of heat the window covering resists. The higher the number, the better job the window treatment does in insulating your windows. Typical R-value ranges from 0.9 to 3.0.
On a typical home, windows account for nearly 50% of the heat gain or loss depending on the season. That means 50% of the work your air conditioning or heating unit does is from energy loss through your windows. Proper coverage of your windows with window blinds or window shades can reduce your energy bills. Calculate the money you can save with the energy efficient blinds calculator.
Three factors control the energy loss through your windows. The material of the windows, the size of the windows, and the window coverings.
Window treatments can be the greatest investment for energy savings. Energy efficient shades can also protect your furniture, art, wood flooring as well as your carpet from damaging uv rays. Browse our website for a complete list of our energy efficient shades. We have also created a simple energy savings calculator to determine an approximate savings on your energy bill. Simply enter the square footage of your home and pick your window coverings.
2 answersOn a typical home, windows account for nearly 50% of the heat gain or loss depending on the season. That means 50% of the work your air conditioning or heating unit does is from energy loss through your windows. Proper coverage of your windows with window blinds or window shades can reduce your energy bills. Calculate the money you can save with the energy efficient blinds calculator.
Three factors control the energy loss through your windows. The material of the windows, the size of the windows, and the window coverings.
Window Materials
Advances in the technology of windows have made them more energy efficient. Windows made with low-e glass and dual pane windows will better insulate than those with single pane windows. Double paned windows with the low-e glaze are 35% more energy efficient than untreated double-paned windows.Window Square Footage
Since windows account for about 50% of the homes energy loss and they typically are only 18% of the overall house, most of the heat transfer is through the windows. The amount of energy loss is directly proportional to the amount and size of the windows.Window Treatments
All window treatments are not created equal when talking about r-values and energy savings. Typical horizontal blinds have an average R-value of 2.5 while honeycomb shades are better insulators and have an R-value between 3.25 to 5.0. By increasing the R-value of your window coverings you can decrease your energy bills.Window treatments can be the greatest investment for energy savings. Energy efficient shades can also protect your furniture, art, wood flooring as well as your carpet from damaging uv rays. Browse our website for a complete list of our energy efficient shades. We have also created a simple energy savings calculator to determine an approximate savings on your energy bill. Simply enter the square footage of your home and pick your window coverings.
