Photo courtesy of PCL Constructors High-performance silicon sealants were used to protect the two-tower Bravern Signature Residences, left, from the elements.

The Bravern Signature Residences consist of two 33-story towers in downtown Bellevue.

From a weatherproofing standpoint, the buildings presented quite a challenge due to the multiplicity of construction materials used on the project, including precast concrete, glass and glazing, curtain wall and metal panel cladding.

High-performance silicon sealants, installed by United Professional Caulking & Restoration, were used in a two-stage system to maintain adhesion during standard building movement, protect the buildings against moisture intrusion and provide the desired aesthetic appeal.