Seattle Park District Opengov #PW# 2025-028

Seattle Central West Headquarters Re-Roof Project Solicitation

This opportunity is for the Central West Headquarters Re-Roof project in Seattle, WA, managed by the City of Seattle Department of Parks and Recreation and Department of Finance and Administrative Services. - Government Buyer: - City of Seattle, Department of Parks and Recreation - Department of Finance and Administrative Services, Purchasing and Contracting, Construction Contracting - Project Scope: - Removal and disposal of existing built-up roof membrane and corrugated metal siding - Installation of tapered polyisocyanurate insulation and coverboard - Mechanically fasten and fully adhere insulation layers - Installation of new EPDM roof membrane at flat roofs - Installation of standing seam metal roof at vaulted roof with underlayment - Raising parapet height and installing new sheet metal flashings and parapet coping - Installation of safety rails and ladders - Structural upgrades (bid additive): installation of 5/8" plywood roof diaphragm - Products/Services Requested: - Tapered polyisocyanurate insulation and coverboard - EPDM roof membrane - Standing seam metal roof and underlayment - Sheet metal flashings and parapet coping - Safety rails and ladders - 5/8" plywood roof diaphragm (structural upgrade) - Roof demolition and disposal - Notable Requirements: - Mandatory pre-bid site meetings - Compliance with social equity and apprenticeship utilization plans - Adherence to WMBE (Women and Minority Business Enterprise) inclusion goals - Lump sum contract with liquidated damages for delays - OEMs and Vendors: - No specific OEMs are named in the solicitation - Potential vendors and roofing contractors listed as plan holders or bidders include: Architectural Metal Works Inc, Krueger Sheet Metal Co., Olympic Roofing LLC, Queen City Sheet Metal & Roofing Inc., Snyder Roofing of Washington LLC, Wayne's Roofing Inc., Ngroupart LLC - Estimated Contract Value: - Base project: $581,072 - Structural upgrade additive: $137,616 - Total estimated range: $581,072 to $718,688

Description

This project involves the removal and disposal of the existing built-up roof membrane down to the existing T&G wood decking at the high roof and barrel vault, as well as removal of built-up roof to plywood deck at the low roof. It includes removal and disposal of corrugated metal siding at gable ends of the vaulted roof, installation of tapered polyisocyanurate insulation and coverboard, mechanically fastening the first layer of insulation and fully adhering subsequent layers, installation of new EPDM roof membrane at flat roofs, and installation of standing seam metal roof at vaulted roof and underlayment. Additional work includes raising parapet height to accommodate new tapered insulation, installing new sheet metal flashings and parapet coping, safety rails, and ladders. There is also a bid additive for structural upgrades involving installation of 5/8" plywood roof diaphragm.

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