How Window Shutters Allow You to Control Room Temperature Closed shutters are the next best barrier against the extreme temperature and wind in Raleigh, coming right after windows. Other window treatments such as blinds, shades, and draperies block most of the temperature from outside, but not all. And, when you need a sturdy window treatment that gives you a cozy spot by the window, Polywood® shutters are the preferred choice. We make Polywood shutters from a synthetic polymer that insulates up to 70% better than a comparable traditional wood shutter. As a matter of fact, the Polywood Shutter Insulating System blocks as much as 30 degrees of airflow and reduces heat transfer by 45.96%. This means energy savings for you – and full room temperature control. Your home’s heating and cooling system won’t have to work so hard now that you have reduced the impact from the weather outside. If you want to feel some of the light and be more exposed to the outside temperature, just slant the louvers open and adjust them to how you’d like them. You can get even more window treatment temperature control. Simply follow the instructions below to close your shutters completely. How to Close Your Shutters for Optimal Temperature Control Two parts of your shutters ought to be closed to seal off external temperature: the louvers and the panels. To close your Polywood shutter panels properly, swing them toward the window. As you move the panels into the shutter frame, make sure to interlock the pieces of weatherstripping along the vertical ends of your shutters. To close your louvers properly, push the tilt rod toward the louvers, checking that the top of the tilt rod will fit into the “mouse hole” just above the top louver. It is best to run your hand up the tilt rod, and push in as you go up. This is particularly true for taller shutters – sometimes a small push at the bottom of the tilt rod isn't enough and doesn’t close gaps at the top.