Wall Systems Have you heard the old saying "The devil is in the details?" Nothing can be more true when designing or installing Air Barrier and Waterproofing products and systems. The time spent in detailing a project typically is critical to the success of a project. Polyguard Products Architectural Division manufactures and markets a series of Wall Flashings and Accessories to connect, divert, and drain moisture out of your wall system. They come in various thicknesses, widths and lengths; each designed and engineered to meet a specific need that you may encounter on your next project.