Replace Roof on the Perry Maintenance Garage

Overview The Iowa DOT is seeking competitive bids for the removal of the roof on the Perry Maintenance Garage as per the Plans and Project Manual on the Buyer Attachments section of this RFB. Base Bid: Remove existing roof material, flashings, gutters and downspouts on Perry Maintenance Garage to expose the existing rigid insulation board. Raise the curbs as needed for the existing roof vents and pipe penetrations to maintain their height above the increased insulation depth. Replace with a rigid polyisocyanurate insulation meeting a LTTR rating of R-30 mechanically fastened to the metal deck, 1/4" cover board adhered to the insulation layer and covered by a 60 mil adhered EPDM roof membrane. Install new edge flashing, gutters and downspouts to match the existing quantity, profile and color. Add additional mechanically fastened rigid polyisocyanurate insulation to meet an LTTR of R-30. Adhere a 1/4" cover board to the insulation and adhere a 60 mil EPDM membrane to the cover board. Install new tapered insulation as needed to direct water to the existing roof drains. Install new sheet metal coping around the high office parapet as detailed. Building to remain open during construction. Unit Price: Remove the existing wet rigid insulation board found, and replace with new. Place new insulation board over new self adhered vapor barrier over existing metal deck. LINES ARE TIED. RESPONDERS MUST RESPOND TO BOTH LINES ON THE ITEMS SECTION TO BE COMPLIANT. The Iowa DOT bidding process is subject to the procedures and requirements established in Iowa Administrative Code 761--20. Shipping Terms Deliveries shall be F.O.B Destination. Award - Cost and Other Factors It is the intent of the Iowa DOT to award the contract to the responsible bidder whose submission is the most advantageous to the Iowa DOT, cost and other factors considered. Other factors include, but are not limited to: meeting or exceeding mandatory requirements, proposed staffing, and meeting required time schedule. Other factors may also include a comprehensive review of bidders past work performance, and work capacity.. Notification of Intent to Award After responses are evaluated, a Notification of Intent to Award (NOIA) and bid tabulation will be posted publicly on the IMPACS Business Opportunities site. Communication Until a contract is awarded, the sole point of contact for this bid opportunity will be the Purchasing Agent listed in the event. All questions must be directed solely to the Purchasing Agent and will not be accepted after the Q&A Submissions Close Date. Bidders are strongly encouraged to submit all questions through the Q&A Board. Responses to questions will be posted on the Q&A Board. Contract Term DOT estimated start date: September 1, 2026 DOT estimated completion date: October 15, 2026 DOT Responsibility-Inspection and Supervision All work shall be according to the approved design and shall be under the direct supervision of the Iowa DOT. Periodic site inspections will be carried on by the Iowa DOT with the Contractor to ensure coordination of the project. The Iowa DOT will provide a list of items requiring inspection prior to or during installation. The Contractor is to give the Iowa DOT notice no less than 24 hours in advance of installation. The Iowa DOT point of contact after the contract award shall be determined. Payment and Completion of Contract Payments on contract will be made monthly by means of state warrants to the extent of Ninety-Seven Percent (97%) of the value of work performed, including acceptable material stored at the building site, as determined by the Contractor as governed by the Iowa DOT. Site Visits A site visit is Highly Recommended. Below are dates and times that Contractors may visit the site. Any questions that arise during the site visit must be emailed to Teri Schulz at teri.schulz@iowadot.us or submitted through the Q & A Board on the solicitation. Contractors must provide their own equipment, including ladders, for the site visit. Monday August 10, 2026: 1:30-2:30 pm Tuesday August 11, 2026: 8:30-10:00 am Tax Exemption The Iowa Department of Transportation is a tax-exempt agency. Tax exemption certificates will be provided upon request. Davis-Bacon wages do not apply. _________________________________________________________________________ Bid Opening Date: August 20, 2026 Time: 1:00 pm CT Interested responders are welcome to attend the bid opening via the Teams meeting link or by phone with the conference id number (listed below) followed by the # sign. JOIN TEAMS MEETING Meeting ID: 260 355 860 286 370 Passcode: oi9Cp3by Dial in by phone +1 515-817-6093,,115139662# United States, Ames Find a local number Phone conference ID: 115 139 662# Those who join the public bid opening after 1pm may not hear all the responses read aloud but all responses will be posted publicly for viewing as soon as they become available.