Classic-Craft is our top of the tine, premium product catalog. It''s a door which is made of fiberglass that has all the beauty and design appeal of a wood door without entry the inherent maintenance problems. The doors polyurethane foam core offers an insulation value five times greater than wood. And. They won''t warp, crack, rot or split. According to a recent Brand Study. more builders use Therma-Tru doors than any other brand. That''s because successful home builders want a door that can withstand the demands of the job site, that requires little maintenance and that reduces callbacks. The company that successfully pioneered steel entry doors now drives the demand for fiberglass, promoting its superior looks and performance. Established nearly 40 years ago, Therma-Tru Doors has always believed that to succeed, a manufacturer must stress quality and innovation, and then support them with a level of customer service second to none. Putting excellence to builders first -- excellence in both product and service -- is the only sure way to uphold your trusted brand name.

Classic-Craft is our top of the tine, premium product catalog. It''s a door which is made of fiberglass that has all the beauty and design appeal of a wood door without entry the inherent maintenance problems. The doors polyurethane foam core offers an insulation value five times greater than wood. And. They won''t warp, crack, rot or split. According to a recent Brand Study. more builders use Therma-Tru doors than any other brand. That''s because successful home builders want a door that can withstand the demands of the job site, that requires little maintenance and that reduces callbacks. The company that successfully pioneered steel entry doors now drives the demand for fiberglass, promoting its superior looks and performance. Established nearly 40 years ago, Therma-Tru Doors has always believed that to succeed, a manufacturer must stress quality and innovation, and then support them with a level of customer service second to none. Putting excellence to builders first -- excellence in both product and service -- is the only sure way to uphold your trusted brand name.

Other alternatives are made of a polyurethane foam insulation core - offering six times the door energy efficiency of wood - faced on both sides with vinyl or aluminum. These typically cost for a 6-foot-wide door. All well-made nonwood doors are designed with thermal breaks (separations between indoor and outdoor surfaces that block the conduction of heat or cold.) Glazing options Of course, the largest part of a glass sliding door is glass. To make a door truly energy efficient, high-performance glazing is key. Fortunately, this is standard with most high-quality sliders. You''ll find double-paned glass with low-E (low energy) coating and, in some cases, argon gas filling. Low-E reduces heat transfer and protects against ultraviolet damage; argon gas filling provides greater insulation. Some manufacturers let you specify the glazing you want when you order. Where sun-caused fading or damage can e a serious problem, you may want to opt for glass with a solar bronze or solar gray tint to reject ultraviolet rays. entry In addition, door some companies entry offer decorative stained or beveled glass with true brass caming (leading). For bathrooms or other places where privacy is a concern, obscure glass is available.