Q: I am considering installing glass block windows on some first floor ones for security. Is the solid glass energy efficient and can I have some summertime ventilation with them? A: From a security ...

Glass block windows were trendy in the 1980s, and believe it or not, they were actually making a comeback then. Incredibly, these glass products were first used in 1933, and they can be an instant ...

Cold weather is resilient, sneaking through hidden cracks in your windows during winter and reducing the efficiency of your HVAC system. Even walking by a closed window may chill you, since glass only ...

Dear James: There have been break-ins in my neighborhood, so I want to install glass block windows for security. This will result in an extremely strong window that would take a thief a long while to ...

If you’ve been in Pittsburgh for more than a few hours, you’ve definitely seen them. They’re in basement, bathroom and kitchen windows, of course — odds are you have one in your house. But they also ...