How Well Do Plantation Shutters Insulate?
A shutter produces an additional layer between the room and the glazed window, which can help reduce heat transfer when the panels and louvres are closed.
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How the extra layer helps
The shutter doesn’t replace insulated glazing, but the panel and the air space between the shutter and glass can reduce direct air movement and radiant heat exchange at the window.
Fit influences performance
A neat fit around the opening helps. Large gaps, an unsuitable frame or panels that don’t close properly reduce the benefit of the additional layer.
Use shutters with the season
Close shutters during periods of strong summer sun or on cold nights, then open them when you want solar warmth, daylight or airflow. The benefit depends on the window, room and climate.
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