Barrel Vault Recaulking

The Washington State Convention Center (Seattle Convention Center) is procuring contractor services for the Barrel Vault Recaulking project, a public works solicitation managed through King County jurisdictions. The scope of work involves removing and replacing exterior caulking and backer rod on a barrel vault glazing system comprising 416 glass panels (approximately 64" x 58" each) located in the skybridge at the Arch facility between grid lines N17 and N22. The contractor must remove all existing caulking and backer rod, thoroughly clean and prepare all joint areas, install new backer rod matching existing profiles, and apply GE UltraGlaze SSG4000 silicone caulk in black color. Required qualifications include current contractor registration under Chapter 18.27 RCW, a Washington Unified Business Identifier (UBI) number, industrial insurance and employment security coverage, and vendor registration through the SCC procurement portal. A mandatory pre-bid meeting and job site walk-through was scheduled for Monday, March 23, 2026, at 11:00 AM at SCC's administrative offices (705 Pike Street, Seattle, WA 98101), with sealed bid proposals due by 3:00 PM on Monday, April 7, 2026, through the SCC public procurement portal and opened via Microsoft Teams on the same date. Substantial completion is required by August 5, 2026, with all equipment removal completed by end of day on the substantial completion date, and work is available 24 hours daily in the exterior area, though interior storage areas require clearance during the weekend of July 25-26 due to an internal event.

This procurement is subject to Washington State prevailing wage requirements under Chapter 39.12 RCW, with the King County prevailing wage schedule effective April 7, 2026, and includes voluntary Minority Business Enterprise (MBE) and Women's Business Enterprise (WBE) participation goals of 10 percent and 6 percent, respectively. No apprenticeship utilization requirement applies as the project falls below the $2,000,000 threshold. A bid guarantee equal to five percent of the base bid amount is required, and for contracts exceeding $150,000, AIA Payment Bond and Performance Bond forms (A312) covering 100 percent of the contract sum including all change orders and state sales tax are mandatory; the project estimated at $750,000 therefore requires performance and payment bonds. Subcontractor listing forms (Forms A and B) must be submitted within 48 hours of bid submission via email to procurement@seattleconventioncenter.com for bidders whose base bid plus additive alternates total one million dollars or more, with substitution of named subcontractors prohibited except as permitted under RCW 39.30.060. Progress payments will be made within 30 days of receipt of properly executed applications for payment, with 5 percent retainage held in accordance with RCW 60.28.011. The estimated project cost is $750,000, with bid due date of April 7, 2026 (originally posted deadline of April 8, 2026).