ASTRA Tower

SGH consulted on the design for below-grade and ground-level waterproofing assemblies, glazing assemblies, exterior opaque wall cladding and water-resistive barriers, amenity deck waterproofing, and roofing. Highlights of our work include:

• Reviewing the proposed design and recommending ways to improve airtightness, watertightness, thermal performance, condensation resistance, and constructability
• Helping select assemblies and developing details to integrate the enclosure systems
• Consulting on the design for the exterior walls for the tower featuring a mix of unitized panels containing glazing, stone, metal panel, and curtain wall assemblies, and the exposed concrete masonry at the parking levels
• Performing hygrothermal analyses of selected project-specific solid exterior wall assemblies to evaluate the potential for condensation and moisture accumulation
• Analyzing the design and performance of the typical facade horizontal and vertical joints
• Assisting with the waterproofing design for the amenity decks and for roofing assemblies at multiple levels
• Visiting the glazed aluminum framing system factory and participating in laboratory and on-site mockups of the glazing assemblies
• Providing construction phase services, including reviewing submittals, visiting the site to observe ongoing building enclosure work, witnessing field performance testing of the glazing, and helping address field conditions