Western Specialty Contractors, KBS to Complete Extensive Curtain Wall Restoration at Award-Winning, 42-Story Mixed-Use Tower in Chicago

Four-year project promotes sustainability/cost control while providing an impressive tenant amenity

Western Specialty Contractors – Chicago Facades Branch and KBS, one of the largest owners and operators of premier commercial real estate buildings in the nation, are completing the restoration of a curtain wall at Accenture Tower, an award-winning, 1.46-million-square-foot, 42-story Class A office and retail property at 500 West Madison Street in Chicago, Illinois.

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Western Specialty Contractors, KBS to Complete Extensive Curtain Wall Restoration at Award-Winning, 42-Story Mixed-Use Tower in Chicago (Photo: Business Wire)

The tower, completed in 1987 and formerly known as 500 West Madison, has twice earned The Outstanding Building of the Year (TOBY) Award Internationally by The Building Owner and Managers Association. The building, which features numerous top-tier amenities, contains 40 stories of office space and 80,000 square feet of retail space over two levels. Sitting above the Ogilvie Transportation Center, the sixth-busiest railway commuter station/terminal in North America, Accenture Tower has earned a UL Verified Healthy Building verification and is LEED Gold and WiredScore Gold certified.

KBS contracted Western Specialty Contractors – Chicago Facades Branch in 2021 to completely restore the existing curtain wall at the property. The project, which is expected to continue through 2025, includes the removal and replacement of the original 35-year-old sealants on the entire 588-foot-tall building’s curtain wall and bridge over Canal Street.

“This restoration demonstrates KBS’ ongoing dedication to delivering the highest-quality amenities at its office properties and highlights its partnerships with service providers like Western Specialty Contractors,” says Luke Hamagiwa, Asset Manager for Accenture Tower and Vice President at KBS. “The curtain wall system will help prevent leaks which is extremely important given the area’s inclement weather.”

According to Debbie Kalck, Branch Manager for Western’s Chicago Facades Branch, a curtain wall system on a building’s façade plays an important role in protecting the building and its occupants by keeping the weather out while allowing extra natural light deeper into a building’s interior space. Additionally, curtain wall systems play a critical role in the overall building’s design and performance and must take into account various forms of outside air, water infiltration, wind loading and seismic forces.

Kalck adds that the restoration’s long completion schedule is due to Accenture Tower being equipped with two maintenance house rigs—working platforms attached to the curtain wall’s structural tube members and internal track system that are similar to swing stages and operated remotely—which allow Western’s crews to access approximately 80% of the exterior. The house rigs limit the number of crews able to work on the building at one time and do not provide access to the base of the building or the Canal Street bridge.

Areas of Accenture Tower’s that are not accessible with the house rig or aerial man lift include the 42^nd-floor rollback at the center of the south elevation and the lower rollbacks on floors 4-6 and 6-9 of the north elevation. Western determined that the most cost-effective way to perform the work at these locations would be via an extensive rope access/controlled descent.

Western employees performing this work have received Society of Professional Rope Access Technicians (SPRAT) training from certified SPRAT evaluators Elevated Safety and are certified as SPRAT Level 1: Rope Access Workers. This training ensures safe work-at-height practices and progresses into the specifics of working on a two-rope system, ascending, descending, transfers, controlled descent devices, and rescue. In addition, workers were trained on anchoring basics, awareness and job hazard analysis. Work at times is performed on a Bosun chair if workers are not able to position themselves elsewhere to perform the work.

“I am so proud of our crews who continue to take on the most challenging projects and are committed to providing our clients with the most cost-effective solutions to safely perform those projects,” says Kalck.

For photos, please visit: here.

About Western Specialty Contractors

Family-owned and operated for more than 100 years, Western Specialty Contractors is the nation’s largest specialty contractor in masonry and concrete restoration, waterproofing and specialty roofing. Western offers a nationwide network of expertise that building owners, engineers, architects and property managers can count on to develop cost-effective, corrective measures that can add years of useful life to a variety of structures including: industrial, commercial, healthcare, historic, educational and government buildings, parking structures and sports stadiums. Western is headquartered in St. Louis, MO with 30 branch offices nationwide and employs more than 1,200 salaried and hourly professionals who offer the best, time-tested techniques and innovative technology. For more information about Western Specialty Contractors, visit www.westernspecialtycontractors.com.

About KBS

KBS is one of the largest investors of premier commercial real estate in the nation. As a private equity real estate company and an SEC-registered investment adviser, KBS and its affiliated companies have completed transactional activity of more than $44.5 billion on behalf of private and institutional investors globally. Founded in 1992 by Peter Bren and Chuck Schreiber, KBS acquires and operates premier commercial real estate in some of the most successful epicenters in the country. The firm is committed in its business ethics, its business relationships, and its constant focus on exceeding the expectations of its investors, partners, and tenants. SEC registration as an investment advisor does not imply any particular level of skill or training. For more information on KBS, please visit www.kbs.com.

This release may contain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including statements relating to KBS’ ability to invest in and manage a diverse portfolio, and the performance of Accenture Tower and of the Chicago, Illinois real estate market. These statements are subject to known and unknown risks, uncertainties and other factors which may cause Accenture Tower’s actual results, performance, or achievements to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements.

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