Bellevue | Eastside Prep Middle School Exterior Envelope
Project Overview
This project involved the exterior envelope construction for the Eastside Preparatory School Middle School building in Bellevue. Synapse Construction partnered on this institutional project to deliver a durable, modern exterior system capable of meeting the performance demands of a school environment while supporting a clean, contemporary architectural design.
The scope required precise coordination, phased construction, and careful detailing to integrate metal cladding, windows, and weather-resistive barriers into a long-lasting commercial envelope system.

Scope of Work
Commercial Exterior Envelope
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Installation of a complete exterior envelope system
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Integration of weather-resistive barrier and air barrier assemblies
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Coordination of envelope details across multiple elevations and transitions
Metal Panel Cladding
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Installation of custom-finished steel panel siding
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Vertical metal panel system supplied by Phoenix Metals
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Precise alignment and detailing at corners, window openings, and terminations
Windows & Openings
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Integration of new window systems into the exterior envelope
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Careful flashing and waterproofing at all penetrations
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Coordination between metal panels, glazing, and WRB systems

Materials & Systems
Custom Finished Steel Panels
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Custom-fabricated and finished steel panels from Phoenix Metals
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Selected for durability, low maintenance, and clean architectural lines
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Well suited for high-traffic, institutional use
Commercial WRB & Air Barrier
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Continuous weather-resistive and air barrier assemblies
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Installed to support long-term moisture management and energy performance
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Critical for durability in a school environment
Construction Process
Synapse delivered exterior envelope craftsmanship that met commercial construction standards while maintaining consistent quality and attention to detail throughout the build.
Final Outcome
The completed Eastside Prep Middle School exterior delivers a durable, high-performance envelope with a bold, modern appearance. The custom steel panel cladding, integrated windows, and carefully executed waterproofing details provide a long-lasting solution designed to serve the school community for years to come.
This project demonstrates Synapse Construction’s ability to deliver commercial and institutional envelope systems with the same level of craftsmanship, coordination, and technical expertise applied to mixed-use and residential work. Contact Synapse Construction today!
— Synapse Construction | Building Envelope Specialists