Independence Mental Health Institute Infirmary Building Roof Replacement

The Iowa Department of Administrative Services is requesting bids for removal and replacement of the roof at the Independence Mental Health Institute Infirmary building, 2277 Iowa Avenue, Independence, Iowa, with bids due August 27, 2026.

The scope includes demolition of existing asphalt shingle roofing down to plywood and removal of EPDM roof membrane systems, followed by installation of new asphalt shingle roofing over synthetic underlayment matching existing colors and new EPDM membrane roofing with associated flashing and vent work. The contractor must preserve existing copper gutters, downspouts, stone parapet caps, and gutter systems in place during construction. Field verification of existing dimensions and site conditions is required before demolition begins. The building will remain occupied during construction, requiring coordinated work to minimize occupant interference and maintain dry interior conditions throughout the project.

Asphalt shingles must meet ASTM D3018 with Class A fire resistance and 130-mph wind resistance, backed by a 40-year limited warranty. EPDM roofing systems must comply with ASTM D4637 with a 25-year non-prorated warranty covering material and labor. Ice and water shield underlayment must be applied a minimum of three feet on asphalt shingle areas and two feet on EPDM areas. All roofing materials, installation procedures, shop drawings, and product data require manufacturer approval. A pre-installation meeting is mandatory one week before work commences, and final technical inspection must be performed by a non-sales representative of the system manufacturer. Work must comply with NRCA, SMACNA, and SPRI industry standards and all applicable federal, state, and local regulations.

Technical drawings, bid form, and project manual are available. The project is identified as RFB951900-01 with project number 9519.00, issued July 31, 2026.