How do window shades and in particular exterior solar shades play a role in “sustainable design”? To understand the role that these shades play, we need to understand what is sustainable design. A good definition comes from the AIA website where it states that “sustainable design is a collaborative process that involves thinking ecologically— studying systems, relationships, and interactions—in order to design in ways that remove rather than contribute stress to systems”.
The last part of that statement – in order to design in ways that remove rather than contribute stress to systems – has an important association to exterior solar shades. This next generation in window coverings succeeds as a sustainably designed solution because it removes stress to systems by reducing over 85% the amount of solar energy entering a space and thereby reducing the amount of energy required for cooling. This is a certain qualifier for making the exterior solar shade a sustainable solution.
It is true that putting any type of solar shade fabric on the exterior side of a window can reduce solar heat gain. However, the critical question to ask is: What type of exterior solar shades are the best at reducing solar heat gain as well as, withstand high winds, have a long useful lifespan, is easy to maintain and provides a quick return on investment? Let’s examine these challenges to determine the three best exterior solar shade solutions.
