Numerous factors need to be considered to determine the best solution for firestopping perimeter conditions. There are several architectural designs, which, in turn, influence the perimeter containment and insulation approach for all types of building envelope construction. The substrate can be glass, concrete, aluminum, stone or steel spandrel panels, steel or aluminum framing, with a variety of interior construction materials that can all affect which design to use. Perimeter fire and smoke containment involves a “system” approach, integrating thermal and vapor control. Superl has substantial expertise and experience installing thermal and vapor envelopes and all perimeter fire and smoke stop systems. Another good reason to consult and contract with Superl for your perimeter envelope/containment needs.  email info@superl.net Corporate Headquarters 7301 Apollo Court, Lino Lakes, MN 55014 Phone: (763) 571-7464 Fax: (763) 571-7646