Bethesda, MD

Element 28

Scope/Solutions
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Project Summary

Scope/Solutions

Prominently heading off the downtown Bethesda intersection at 100 Commerce Lane, Element 28 brings more than 100 rental units and ground-level retail to the neighborhood. Residents can access many amenities, including private balconies, landscaped plazas, a fitness studio, and a rooftop deck with a retractable glass wall at the indoor/outdoor clubroom. SGH consulted on the building enclosure for the fifteen-story, mixed-use building clad with a red-glazed terra cotta and glass fiber-reinforced concrete rainscreen.

SGH consulted on the design of below-grade, wall, and balcony waterproofing; window and curtain wall systems; rainscreen cladding assemblies; and roofing. Highlights of our work include:

Reviewing the proposed enclosure design, focusing on design efficiency, performance, and constructability, and developing details to integrate the various systems
Helping develop and coordinate waterproofing, drainage and thermal barriers at complex plaza and rooftop amenity spaces, such as the art installation, stair enclosure, rain ladder, and intensive bioretention feature
Consulting on the structural glass feature at the building entrance vestibule, including its integration with adjacent roofing, cladding, and plaza waterproofing systems
Performing hygrothermal and thermal analysis to evaluate moisture transmission in proposed wall and roof assemblies
Evaluating enclosure system products and materials for conformance with performance expectations and service life
Reviewing on-site mockups and quality control testing of window and roofing systems
Performing construction phase services, including reviewing submittals, visiting the site to compare the constructed work with the design intent, and helping respond to contractor questions and address field conditions