Thursday started off brutally cold in Chicago, with wind chills dipping below zero, but what exactly does that mean and how is it calculated? A wind chill is the "measure of how cold the air feels on ...

EPA, or Effective Projected Area, measures the size of the cross-sectional area of a fixture and its components as seen by the wind. This determines the overall strength of a fixture and the amount of ...

Installing hurricane-impact windows is a critical investment in protecting your home from storms while improving its energy efficiency and boosting its value. Impact windows are specifically designed ...