Series 1000 Traditional Sliding Glass Door
Air Leakage: Wood and vinyl swell and shrink as the weather changes. And like an old house they can creak and groan. DO NOT be fooled by those windows/doors that tout "U-value = energy efficiency." To understand the U-value test is to know that it is a misleading rating. During the test all weep holes, seams, etc are sealed shut. No wonder wood and vinyl perform so well in this "test" because only material is tested and not the product. Real conditions cause expansion and contraction, which allows energy to come right through the frame. Aluminum has infinitesimal movement during weather change, which causes it to be efficient year in and year out.
Saving More Money: Larger doors mean more natural light, saving you money. If you choose one of our higher performing glass systems the light is conditioned for greater comfort. Destructive elements such as UV Rays are filtered out, which improves your comfort and protects your flooring, furnishings and art.
Flared Interlockers: Notice how the interlockers on all Fleetwood doors "wedge" into each other? This makes a rattle free union. Cheaper models rely solely on the brush weather-stripping. This causes more noise and air infiltration because the brush wears out.
NFRC Ratings: In the Testing section of our product page we list several test results with varying types of glass, from standard insulated glass to high performance glass.