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

We make a big deal about energy efficiency in window treatments. But that’s because we’ve got the hard data to back up our claims. With the help of some outside research, we can chart the energy efficiency of the most often-chosen window coverings in Baltimore, from blinds to drapes to shutters.

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

Everything in your house that insulates, from the walls to your window coverings, has an R-value. That number lets you know how effective it is at preventing heat from moving through it. A higher r-value indicates a more effective insulator.

So what difference does the r-value of a window covering make? Simply put, a more energy efficient window treatment lets you keep your home at your preferred temperature. Whether you want to keep in the heat at wintertime or want to stay cool during the summer months, great insulation is a requirement. That’s even more necessary for your windows, because they’re a big reason for energy loss in your home.

Window Treatment R-value Comparison Chart

You don’t get the same benefits from every window treatment, at least not when it comes to energy efficiency. Though there’s some variation based on the material and thickness between different manufacturers and models, here’s what you’re likely to find when comparing window treatments.

R-value averages sourced from Energy.gov and HouseLogic.

A short look at the chart tells you a number of things. The first is that a few certain window treatments barely give you any benefit at all (ahem, blinds), while others are energy-efficient beasts. That big gap in R-value could result in a difference of several degrees – that’s the difference in whether or not you crank up the AC.

Something else you might notice is that what the window treatment is made out of is a big deal. Honeycomb shades, which are made with multiple insulating layers designed to repel heat, can stop heat flow much better than pleated shades.

Similarly, Polywood® plantation shutters, built from a completely solid faux wood compound, can block heat a to a much greater degree than hardwood shutters. Natural wood can be permeable, with natural gaps and knots that let heat flow through them easily. Polywood shutters, combined with seamless weatherstripping, build a solid seal on your window when closed, which is the reason for their best in class r-value of more than 6.

Up Your Home’s R-value

The science doesn’t lie. Your window treatments play a big role in how comfortable your space is. Could your home be a little more comfortable? We can help. Have a chat with the team at Sunburst Shutters Baltimore by calling 301-321-7998, or use our free consultation request form below.