Energy-Efficient Fiberglass Entry Doors
Compared to wood counterparts, fiberglass doors – the fastest-growing area of the entry door market – are more durable, longer-lasting and energy efficient. Therma-Tru fiberglass doors provide as much as four times the insulation of most wood doors.* Today, more than 80% of Therma-Tru’s door and glass options are National Fenestration Rating Council certified and ENERGY STAR qualified, helping homeowners reduce their heating and cooling costs and their carbon footprints.
*Comparison of fiberglass to wood doors, both without glass.