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 ...

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Dear Jim: My house needs more efficient windows. I live alone, so I am considering some glass block windows for security. Are they very efficient, and how can I have some summertime ventilation with ...

Question: We need to replace two living room windows. We looked at glass block windows because of the security for our family. How energy efficient are they and is it possible to get ones with ...