Johnson County Ionwave #2026-040 Addendum 1

Johnson County Sunset Office Building Roof Replacement Project

This opportunity involves a full roof replacement for the Sunset Office Building in Olathe, Kansas, managed by the Public Building Commission of Johnson County. - Government Buyer: - Public Building Commission of Johnson County, Kansas - Project location: 11811 S. Sunset Drive, Olathe, KS - OEMs and Vendors: - Preferred Lightning Protection (specified for lightning protection system) - No specific OEMs named for roofing materials (DensDeck StormX Prime, polyisocyanurate insulation, TPO membrane are product types, not brands) - Products/Services Requested: - DensDeck StormX Prime 5/8-inch cover board (adhered to insulation) - Polyisocyanurate roof insulation (2.0-inch and 2.5-inch) - Thermoplastic Polyolefin (TPO) membrane, 45 mil (mechanically attached and fully adhered) - Lightning protection system components (Preferred Lightning Protection) - Roof replacement construction services (removal, repair, installation, and related work) - Unique/Notable Requirements: - Removal and reinstallation (with upgrades as needed) of the building's lightning protection system, requiring UL Master Label Certification - All plumbing, mechanical, and electrical work must be performed by licensed contractors - Mandatory pre-bid conference and site visit for general/prime contractors - Fixed allowance for lightning protection system work; unit pricing requested for insulation board - Project-specific staff and subcontractor management plan required - Quality control and protection/repair of existing site features mandated - 5% bid bond, performance and payment bonds, insurance, and tax clearance required

Description

This solicitation is an Invitation for Bid for the Johnson County Sunset Office Building Roof Replacement Project. The work includes removal of the existing roof membrane and associated components, repair of damaged insulation, installation of new insulation, membrane, and related components as detailed in the project drawings and specifications. Bids must be submitted electronically via IonWave by August 12, 2026, and a mandatory pre-bid conference and site visit is scheduled for July 28, 2026. Bidders are required to submit a bid bond of 5% of the bid amount and comply with all specified terms and conditions.

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