Other alternatives are made of a polyurethane foam insulation core - offering six times the energy efficiency Exterior of wood - faced on both sides Front 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 Doors 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. In addition, Exterior some companies 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.

Other alternatives are made of a polyurethane foam insulation core - offering six times the energy efficiency Exterior of wood - faced on both sides Front 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 Doors 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. In addition, Exterior some companies 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.

Therma-Tru doors, which are made of fiberglass, have redefined the traditional concept of high-performance building supplies. The company pioneered the polyurethane foam core, now CEC-free, which offers five times greater insulation value than Front wood doors. Therma-Tru is also the first exterior door manufacturer to feature a full thermal break which prevents the transmission of heat and Doors cold through the surface. Our doors are made of fiberglass so they won''t dent, crack, split or splinter, which means they eliminate callbacks for you. Therma-Tru recognized the need for a more durable, highly efficient door. In 1983, it introduced the first door, the Fiber-Classic. The door became so popular that today, Therma-Tru offers three door lines including fiberglass Classic-Craft, Fiber-Classic and Smooth-Star. For the builder and the customer, there''s a Therma-Tru door to add style and curb appeal to every home whether it''s the ultimate luxury residence or a starter home. Beautifully detailed, Classic-Craft and Fiber-Classic doors look and feel just like wood. Their durable fiberglass surface features a rich red oak grain, but unlike wood doors they don''t come saddled with inherent maintenance problems. Plus, they''re backed by a lifetime-limited warranty.