Western’s 600 Series Thermally Broken Multi-Slide Door utilizing our Thinline Sill (or “hidden track”) has passed AAMA testing for structural integrity and also for air infiltration. By meeting both of these requirements, Western has the ability to offer our customers these door systems with our popular track and also provide NFRC labeling. In markets such as Las Vegas, our architectural partners were desperately asking for us to provide a product that passed this test utilizing our specialty track. We are excited to be able to meet their needs. Now even the most energy conscious designers, builders, and homeowners have the freedom to open up entire walls of their homes with a door track system that nearly disappears. The possibilities are endless.

Fleetwood has tested their multi-slide door utilizing their hidden track system and has been unsuccessful in passing the test for air infiltration. Failing this test has limited their ability to meet the needs of the architectural community.

“This issue was incredibly important to my company because so many architects were requesting it. I presented the challenge to Western and they moved immediately to get their product tested and approved. Their support for my needs was incredible.”   Rick Salter, Custom Home Window & Door