CLG processes over 4,000 square feet of insulated glass every day.  Our insulated glass units are double sealed, using a primary polyisobutylene seal and a secondary silicone seal. To ensure the sealed space remains dry throughout the unit’s lifetime, the glass lites are separated by a desiccant-filled aluminum spacer. As an IGCC Certified Fabricator, CLG offers a 10 year warranty on all units and is partnered with Guardian Industries to provide their entire line of SunGuard^® Low-emissivity (low-E) glass which provides natural light transmission while limiting heat transmission.