Central West Headquarters Re-Roof
Closed State & local contract opportunity Posted
- Solicitation number
- PW#2025-028
- State
- Washington
- Responses due
Opportunity facts
- Jurisdictions
Opportunity details come from constructionbidsource.com. Updated .
About this opportunity
King County and Spokane City are requesting bids on re-roofing work at Central West Headquarters with proposals due August 19, 2026. Past performance demonstrates 20% WMBE utilization rates on completed projects.
The scope includes removal and disposal of existing built-up roof membrane and corrugated metal siding; installation of tapered polyisocyanurate insulation and coverboard with mechanical fastening of the first layer and full adhesion of subsequent layers; installation of new EPDM roof membrane at flat roofs and standing seam metal roof with underlayment at vaulted roof; raising parapet height to accommodate new insulation; installation of new sheet metal flashings, parapet coping, safety rails, and ladders. An additive for structural upgrades includes installation of 5/8" plywood roof diaphragm. Work addresses existing T & G wood decking at high roof and barrel vault and plywood deck at low roof.
No contract value, term, or evaluation criteria are specified in the solicitation notice.
Opportunity text
Re-roof - remove and dispose of the existing built-up roof membrane down to the existing T & G wood decking at high roof and barrel vault. remove and dispose of built-up roof to plywood deck at low roof. remove and dispose of corrugated metal siding at gable ends of vaulted roof. install tapered polyisocyanurate insulation, and coverboard. mechanically fasten the first layer of insulation and fully adhere the subsequent layers. install new EPDM roof membrane at flat roofs. install standing seam metal roof at vaulted roof and underlayment. raise parapet height to accommodate new tapered insulation. install new sheet metal flashings and parapet coping. install safety rails. install ladders. Additive Structural upgrades. Install 5/8" plywood roof diaphragm. Past Performance of 20 % WMBE utilization rates based on completed projects.
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