Seismic Wall Expansion Joint at Elevator to Existing Building Sealed with Seismic Colorseal
HBD Construction was in search of an expansion joint system to accommodate the seismic opening between a new elevator tower and and the existing building that houses the Provision Living Center for the aged in St. Louis. After a visit to EMSEAL’s website HBD looked to the Seismic Colorseal as a possible candidate and was linked to Shield Systems, the local rep firm for technical assistance.
A visit to the jobsite by a Shield sales consultant confirmed the Seismic Colorseal to be a perfect match for the application. The product could accommodate the variation in the masonry to masonry joint opening as it is manufactured in 1/4″ increments for such challenges.
In addition, the joint opening made a change in plane and continued over the top of the tower and down the back side of the elevator structure. Again, the Seismic Colorseal could be installed to provide continuity of seal in the joint from start to finish.
The average opening was approximately 4 1/2″ and was installed quickly by two carpenters never before experienced in EMSEAL precompressed foam sealants. A testimony for the simplicity of the product and user friendliness of the product.
The installation starts with removal of the factory wrapping which holds the foam in compression. A release film is removed from the edges of the foam to exposed a mounting adhesive on one face and the material is slipped into the joint.
Shortly after insertion the material swells and forms a permanent seal due to a combination of the acrylic impregnation and the back pressure caused after expansion. Following the expansion process a bead of matching silicone sealant is added to the joint interface to form the final seal.