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 ...

Last week I received an email from a concerned reader who said his 85-year-old mother-in-law had recently purchased a $2,500 radiant barrier insulation system for her 1,800 sf townhouse in Austin, MN.