North Calais IA - LPOE Roof Replacement

Amendment / Modification

This document is Amendment 0001 to Solicitation 47PC5226R0009, dated 1/14/2025. It provides answers to questions submitted by vendors during a site visit.

This amendment addresses questions related to:

• Roof core samples and material removal.
• Specifications for the new roof system, including base layer, insulation, and roofing materials.
• Existing roof system materials and architectural style.
• Substrate re-sloping for drainage.
• Inspection and decision-making timelines.
• Mastic/adhesive specifications and cure times.
• Taping of insulation seams and acceptable tape types.
• Acceptability of substituting 5/8" DensDeck Prime with high-density polyiso cover board.
• Acceptability of standard 24ga prefinished metal cap and flashing.
• Requirements for roof manufacturer site walks.

The closing date for this solicitation is NOT extended by this amendment.

Solicitation / RFP / RFQ

This solicitation is for a construction contract for the North Calais IA - LPOE Roof Replacement project. The General Services Administration (GSA) requires the removal and replacement of the TPO roof of the commercial building located at the Calais IA LPOE due to severe wind damage. The project involves a total roof replacement.

• Removal of existing TPO roofing, Dens Deck, and insulation.

• Installation of new air and vapor barrier, rigid panel insulation, Dens Deck, and Thermoplastic Polyolefin (TPO) roofing membrane (min 60 mil).

• Installation of new parapet wall flashing and top cap.

• Salvaging and reinstallation of grounding rods and wire where possible.

• Compliance with GSA, NRCA, IBC, and NFPA standards.

• Provision of a 15-year warranty with 100 MPH wind protection.

• Contract Type: Firm Fixed Price.

• Estimated Price Range: $500,000 to $700,000.

• Period of Performance: Approximately 10 days after award to commence, with a total completion time of 120 calendar days.

• Proposals are due by 4:30 PM EST on Friday, February 13, 2026.

• Evaluation will be based on the Lowest Price Technically Acceptable (LPTA) method.

• Technical proposals must not exceed 5 pages.

• Key evaluation factors include Experience on Similar Projects, Key Personnel, and Past Performance.

• This solicitation is a TOTAL HUBZone Set-Aside for HUBZone certified firms in Penobscot County, Aroostook County, and Washington County, Maine.

• A pre-proposal conference will be held on January 28, 2026, at 10:00 AM EST at the project site.

• DHS clearance will be required for personnel. Allow 1-2 weeks for processing.

• Project hours of operation are 0700-1900.

Other / Unclassified

This document is a "Sources Sought" description of work for a commercial building re-roofing project at the Calais Maine International AVE LPOE. The project is necessitated by severe wind damage sustained by the TPO roof on or around April 20, 2025. GSA has determined a total roof replacement is required.

This document outlines the basic scope of work for the re-roofing project, including:

• Removal of existing TPO roofing, Dens Deck, and insulation.
• Preparation of penetrations and installation of a temporary weather barrier.
• Installation of approximately 30,400 sqft of 4” rigid panel insulation.
• Preparation and installation of approximately 30,400 SQFT of 1½ inch prime dens deck, with tapered insulation crickets and saddles to ensure proper drainage.
• Installation of approximately 30,400 SQFT of flat Thermoplastic Polyolefin (TPO) roofing, using a low-rise urethane adhesive due to a hollow core concrete deck.
• Installation of approximately 700 SQFT of Parapet wall (vertical TPO).
• Installation of new top flashing around the parapet wall.
• Reinstallation of grounding rods and final sealing of all penetrations.

The document also notes that the building will remain operational during the reroofing process and that a site walk will be available once the solicitation is open. This information is critical for potential bidders to understand the scope, materials, and sequence of work involved in this roofing opportunity.