Tremco was the only company able to provide a comprehensive air barrier system. Some manufacturers do not even warranty the use of their own sealants with sheet membranes. With Tremco, that would not be a problem. Tremco has fluid- and sheet-applied membranes, thru-wall flashing, primers, termination mastics, high performance silicone and urethane sealants and transition assemblies that have been formulated and tested to ensure compatibility . . . and long-term performance. Air barriers are only effective when designed as a holistic, continuous system. Simply specifying an air barrier membrane is not sufficient. Codes do not indicate how to achieve an air barrier system, and the details are left up to interpretation at the jobsite. If attention isn’t paid to the compatibility of the components within an air barrier system, a single sealant may be installed in all joint openings and in conjunction with all types of air barriers, moisture barriers and self-adhered membranes and flashings. This can be a recipe for disaster.
On WakeMed North Hospital, Tremco’s ExoAir® 220 Fluid-Applied Vapor-Permeable Air Barrier Membrane, ExoAir® 110 Self-Adhered Air and Vapor Membrane and Spectrem®1 and 2 Silicone Sealants comprised the above-grade system. Spectrem 1 and Spectrem 2 Silicone Sealants were utilized at the fenestrations, louvers and metal panels. Spectrem 1 Silicone Sealant made it easy for installers to provide a secure seal for dynamically moving joints at aluminum curtain walls and window perimeters, metal panels, and the polyethylene-faced self-adhering air barrier membrane.