2025 MF-2 TPO.pdf

This is a Temporary Roof Overlay (TPO) specification document prepared by the Department of Accounting and General Services (DAGS), Central Services Division, for the State of Hawaii. The project involves temporary roof repairs at the Honokaa State Office Building to address active water infiltration affecting approximately 4,500 square feet of roofing area. Offerors must provide bids for two alternative line items: installation of either a Snap-Clad metal roofing overlay system or a TPO membrane overlay system over the existing roof and skylight area, with the state reserving the right to award one or both line items. The specifications detail comprehensive requirements for furnishing all labor, materials, equipment, and supervision necessary to complete the overlay installation in accordance with manufacturer standards and applicable building codes.

The TPO specification establishes detailed technical requirements for membrane composition, including minimum 45-mil thickness, UV-resistant properties, and fire rating classification. The document specifies installation methodologies, including fastening patterns, seaming procedures, and flashing details, along with requirements for substrate preparation and quality assurance. Contractor qualifications must include demonstrated experience with TPO membrane systems and roof overlay installations. The specifications mandate adherence to Hawaii's building code requirements and establish performance standards for weather resistance and durability. No specific pricing, award dates, or contract term information is provided within the TPO specification document itself, as these details are contained in separate bid documents and solicitation materials.