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R-Values of Shutters: Comparing Energy-Efficient Window Coverings

June 13, 2017

We make a big deal about energy efficiency in window treatments. That’s because we have the numbers to back it up. With the help of some scientific research, we can directly compare the energy efficiency of the most common window coverings in Destin, from drapes to blinds to shutters.

What Is R-Value And Why What Does It Mean For Window Coverings?

Everything in your home that separates indoors from outdoors, from the roof to your window coverings, has an R-value. That number indicates how effective it is at stopping heat from moving through it. A larger r-value indicates a more effective insulator.

roller shades in Destin space 

Why does the R-value of a window covering matter? Basically, a more effective insulator makes it easier to keep your home at a comfortable temperature. No matter if you want to keep the heat inside during the winter or keep your home cool during the summer months, you’re going to need effective insulation. That’s even more crucial for your windows, because they’re a big reason for energy loss in your home.

Window Treatment R-value Comparison Chart

Not all window treatments are made equal, at least not in terms of energy efficiency. Though there’s some difference due to the material and thickness between different manufacturers and makes, here’s what you’re likely to find when comparing window treatments.

Window Treatment

Typical R-Value

Window alone




Pleated shades




Hardwood Shutters


Honeycomb shades


Polywood plantation shutters


R-value averages sourced from HouseLogic &

A quick look at the chart tells you a number of things. Perhaps the first thing you notice is that a few certain window treatments offer almost no benefit at all (ahem, blinds), while others are energy-efficient beasts. That difference in R-value could mean a difference of several degrees – enough to make an impact in whether or not you turn on the AC.

Something else you might notice is that what the window treatment is made out of can have a big impact. Honeycomb shades, which are made with a number of engineered layers designed to trap heat, can stop temperature flow much more effectively than pleated shades.

faux wood shutters in Destin living room 

Likewise, Polywood® plantation shutters, made from a solid-body faux wood compound, are able to block heat a lot more effectively than wood shutters. Natural wood can be permeable, with natural gaps and holes that allow heat to move easily. Polywood shutters, outfitted with custom weatherstripping, make a solid seal on your window when shut, giving them that top of the line r-value of 6 or more.

Add More Value To Your Home

The stats don’t lie. Your window coverings play a big role in how comfortable your house is. Could your home be a bit cozier? We can help. Talk to the team at Sunburst Shutters Destin by calling 850-203-0419, or fill out our free appointment request form below.