CAD Details Sun Shading SystemsALB Active Rectangular (linear) Planning PrinciplesUnit ExamplesHorizontalVertical Systems DrawingsStructural Mullion and other ProfilesRectangular Louver Blades AR + AP Hollow (linear) Planning PrinciplesUnit ExamplesStructural Mullions with Top AttachmentStructural Mullions with Bottom Attachment Systems DrawingsStructural MullionsHollow Louver Blades AH Hollow (Concealed) Planning PrinciplesUnit ExamplesDrive In Mullion Systems DrawingsHollow Louver Blade AH