energy efficient homes

You may have seen them before without giving them much thought: window bars that gently bulge outward instead of running straight down. At first glance, they might look decorative — or even strange. But that curved design isn’t random at all. Those outward-curving bars are known as “potbelly window grills”, and they serve several practical purposes that go far beyond … [Read more...] about If You Notice Window Bars That Curve Outward at the Bottom — Here’s What They’re Really For