How Window Shutters Help You Control Room Temperature Closed shutters are the next best defence against the extreme temperature and wind in Austin, coming right after windows. Other window treatments such as blinds, draperies, and shades block most of the external temperature, not all. And, where the quality of your window treatment means the difference between a pleasant spot by the window and one that’s not, Polywood® shutters are the optimal product. We make Polywood shutters from a synthetic polymer. Polywood shutters insulate up to 70% better than an equivalent traditional wood shutter. In fact, the Polywood Shutter Insulating System blocks up to 30 degrees of airflow and diminishes heat transfer by 45.96%. This results in energy savings for you – and complete control over room temperature. Your home’s HVAC system will work faster since you’ve now reduced the impact from the weather outside. When you want to let in some of the light and be more exposed to the outside temperature, just slant the louvers and adjust them to how you’d like them. Get even more window treatment temperature control by closing your shutters properly. How to Close Your Shutters for Optimal Temperature Control Two parts of your shutters should be closed to seal off external temperature: the panels and the louvers. To properly close your Polywood shutter panels, swing them toward the window. As you push the panels into the shutter frame, make sure to interlock the pieces of weatherstripping along the vertical ends of your shutters. To properly close your louvers, push the tilt rod toward the louvers and check that the top of the tilt rod fits into the “mouse hole” just above the top louver. Do this by running your hand up the tilt rod, pushing in as you go. This is particularly true for taller shutters – sometimes a little push at the bottom of the tilt rod isn't enough and doesn’t close gaps at the top.