WakeMed North Hospital wanted to pursue LEED Gold certification
Raleigh, North Carolina
When you strip the skin off the building and remove windows, the exposure can be tremendous – particularly when it goes on for months at a time and through the winter months.
WakeMed North Healthplex in Raleigh, North Carolina was transformed into a full-service hospital with a 131,000-square-foot expansion and an 8,550-square-foot central energy plant being added to an existing 109,250-square-foot complex. A five-story, 61-bed acute care expansion will focus on inpatient women’s specialty services, offering a full range of obstetric and gynecological services including comprehensive preventive, diagnostic and therapeutic care.
The joining of the old with the new represented two completely different worlds colliding. BBH Design, a sustainable architectural design firm specializing in healthcare and education, faced the challenge of ensuring continuity throughout the building enclosure during the construction process and for decades to come. Not only was the challenge to transform this medical complex built in 2001 into a high-performance, full-service medical institution, but to pursue LEED Gold under the LEED for Healthcare (LEED-HC) program.
Some manufacturers do not even warranty the use of their own sealants with sheet membranes. With Tremco, that would not be a problem.
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 job site. 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.