Iowa City Community School District Bidopportunities #RFB952100-01

Roof Replacement Project for DPS District 1 Building, Des Moines, Iowa

This opportunity involves the replacement of the roofing system at the DPS District 1 building in Des Moines, Iowa. - Government Buyer: - Iowa Department of Administrative Services (DAS) - Project managed by Boyd Jones Construction Manager; design by Genesis Architectural Design - Products and Materials Requested: - Thermoplastic Polyolefin (TPO) roofing membrane (60 mil, gray, fully adhered) - Polyisocyanurate roof insulation (minimum R-25, ASTM C 1289 Type II) - Sheet metal flashing and trim (24 gauge galvanized steel, SMACNA and ANSI/SPRI/FM4435/ES-1 compliant) - Roof specialties including roof drains and retrofit roof drains (e.g., Hercules RetroDrain or equal) - Roof accessories such as weather-resistant EPDM rooftop pipe supports (for 3/4" to 2" pipes, 650 lbs max load) - Joint sealants (single-component nonsag urethane and silicone, ASTM C 920 compliant) - Miscellaneous rough carpentry (wood blocking and nailers, DOC PS 20 compliant) - Services Requested: - Demolition and disposal of existing roof - Installation of new roofing system and accessories - Unique/Notable Requirements: - Performance specifications for wind uplift resistance (FM Approval Testing 4474, UL 580, UL 1897) and fire rating (ASTM E 108 Class B) - Substitution requests for products allowed if submitted in writing prior to bid opening - Bid security of 5% of total bid amount required - Compliance with state and federal affirmative action and equal employment opportunity provisions - Project exempt from Iowa sales and use taxes; Davis-Bacon wage rates do not apply - Place of Performance: - DPS District 1 Building, 1333 Ohio Street, Des Moines, Iowa 50314 - Iowa Department of Administrative Services, 109 Southeast 13th Street, Des Moines, Iowa 50319 - No specific OEMs are named; bidders may propose equivalent products meeting specifications.

Description

The Iowa Department of Administrative Services is soliciting bids for the replacement of the roofing system at the DPS D1 building located at 1333 Ohio Street, Des Moines, Iowa 50314. The project anticipates construction to begin in August 2026 and end in November 2026. Bids must be submitted online through the IMPACS Electronic Procurement System by June 16, 2026, at 2:00 PM. The solicitation includes detailed project manuals, drawings, and instructions to bidders to guide prospective contractors.

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