- Project uploaded by Susan Jones on 03-08-2021
- Project last updated by WoodWorks on 08-15-2024
Heartwood Workforce Housing
Seattle, WAThe eight-story project is the first IBC Type IV-C workforce housing project permitted in the United States. The project exposes the CLT ceilings and glulam column and beams within the units, hallways and lobby, along with two Mass Plywood Panel (MPP) exit stairs. 126 studio and 1-bedroom units are provided, and the building includes an outdoor amenity courtyard, bike parking, retail, laundry. Led by architect atelierjones, the project was completed in Dec. 2023 for owner, Community Roots Housing. With Skipstone, Linage, DCI, TimberLab, Swinerton Construction and a fully integrated team using extensive Building Information Modeling (BIM) for prefabrication of all Mass Timber elements. Supported by a 2019 USFS grant.
This video explores the creation of 2-hour rated glulam beam-to-column connections on Heartwood, the 8-story Type IV-C building in Seattle, WA. Hear from project team members about the design, fabrication, and construction process they undertook to blend traditional joinery techniques with cutting-edge mass timber fabrication advancements. Featuring Adam Jongeward, PE SE; DCI Engineers; Taylor Cabot and Lauren Magasko, Timberlab.
Project Details
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Year Built
2023
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Number Of Stories
8
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Bldg system
Mass Timber
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Square footage
67,500
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Construction Type:
IV-C
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Building Type:
Multi-Family (Apartments, Condos)
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Material Types:
Mass Timber
Cross-Laminated Timber (CLT)
Glue-Laminated Timber (GLT or glulam)
Structural Composite Lumber (e.g. LVL and LSL)
Project Team
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DCI Engineers Structural Engineer
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Swinerton General Contractor, Mass Timber
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Timberlab Mass Timber Fabrication + Installation
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atelierjones LLC Architect
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Freres Engineered Wood MPP Stairs
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Kalesnikoff Glulam and Cross-laminated timber (CLT)
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Simpson Strong-Tie Screws
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Susan Jones Principal Architect
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Taylor Cabot Project Manager
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William Silva Project Executive
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Zachary Brehm Operations Manager
- Project uploaded by Susan Jones on 03-08-2021
- Project last updated by WoodWorks on 08-15-2024