Seattle, WA
Seattle Heights
Scope/Solutions
Seattle Heights is a twenty-six-story condominium building with four levels of below-grade parking. Shorty after construction, occupants experienced water leakage, excessive air infiltration, and apparent mold growth. SGH investigated causes and consequences of the building’s problems and designed repairs.
The condominium building features an exterior insulation and finish system (EIFS) facade with aluminum-framed windows and sliding glass doors opening onto private balconies. Three landscaped, terraced roofs cover residential units at the lower floors. Our building enclosure investigation included:
- Using water testing and making observations at exploratory openings to determine leakage paths
- Identifying defects in the design and construction of the windows, doors, balconies, and EIFS cladding
- Assisting homeowners throughout the litigation process to recover costs for repairing construction defects
- Preparing construction documents for the building enclosure repairs, including replacing terraced roofs, installing new windows and doors, integrating new window and balcony deck flashing with a drainable, double-sealant joint system
- Monitoring the contractors’ performance during the work
Project Summary
Solutions
Repair & Rehabilitation
Services
Building Enclosures
Markets
Mixed-Use
Client(s)
Seattle Heights Condominium Association
Specialized Capabilities
Condition Assessments
Key team members

Additional Projects
West
Lane Building, 8th and Spring Streets
The historic Lane Building is a twelve-story, nonductile concrete structure originally constructed in the early 1920s. SGH collaborated with the project team to design seismic strengthening that could be integrated with the proposed program, while maintaining the building’s historic character.
West
NEMA at 10th and Market Streets
NEMA houses 754 rental units in two high-rise towers and two mid-rise buildings along with ground-level retail space. SGH assisted with roofing and waterproofing design for this multi-use project.