JELD-WEN Premium Atlantic Aluminum patio doors provide the reliability you are looking. Our aluminum patio doors include a unique performance feature - it's our patented silicone-injected corner key, which is created by injecting silicone into the corners for added strength. This feature also ensures the patio doors is reliably weathertight. Sliding patio doors are spaces saving. Internal Mini-Blinds are thermally sealed between the glass - so there is no need for dusting.