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Kellogg Middle School

Steel Building with Mass Timber Elements

Location:

Shoreline, WA

Year Built:

2020

District:

Shoreline School District

Type:

Replacement Building

Photos:

© Benjamin Benschneider

About this Project

Kellogg Middle School in a new 152,000 SF facility and the first acoustic dowel-laminated timber (ADLT) system installation in the U.S., where the wood panels are utilized for a combination of structure, finish, and acoustical control. Acoustic DLT is unique in that sound-absorbing fiber insulation is added to the panels. This is accomplished in the factory, by using CNC tools to rout out thin channels between the laminations, and inserting acoustic insulation in the cavities. This unique process can be used to achieve a noise reduction coefficient as high as 0.7. At Kellogg, the acoustic profile was utilized to showcase the wood structure without the need for an additional acoustic ceiling. The largest DLT panels in this project are nearly forty feet long by six and a half feet wide. The panels were prefabricated and efficiently flat-packed to the construction site, where they were erected in just two weeks.

The school is designed to address the specific academic, social, and emotional needs of the teenage learner. Internal and external transparency throughout the school creates an open, welcoming, and safe learning environment that inspires curiosity. Internal and external transparency throughout Kellogg Middle School creates an open, welcoming, and safe learning environment. Conceptually, the site is divided into a secure middle school “backyard” to the north and a public, open “front yard” to the south. A central, secure learning courtyard provides ample opportunities for students to take short cuts to their next class and connect with nature.

Project Highlights

First use of acoustic dowel-laminated timber (ADLT) in the U.S. Detailed cost analysis demonstrated that ADLT was more cost-effective than a steel alternative with acoustic ceiling finishes

Building Statistics

  • Building Area: 152,000 SF
  • Areas featuring Mass Timber: Common areas, Library, Entry Hall

Project Team

  • Architect: Mahlum Architects
  • Structural Engineer: Coughlin Porter Lundeen
  • General Contractor: Hoffman
  • Timber Installer: Hoffman
  • Timber Manufacturer: StructureCraft

Project Gallery

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