Q. What is your take on using two-sided aluminum material in the attic over existing insulation? I’ve been told it is an idea from NASA that uses material like this to protect astronauts in space. A ...

— Q. Even with my high air-conditioning electric bills, my house is uncomfortably warm in the afternoon. The heat seems to be coming straight down from the ceiling. What can I do myself to block this ...

This article was originally published July 9, 2012. As the temperatures rise, you start worrying about your air-conditioning bill and hope that somewhere, somehow you can find a new, improved and ...