CNCC FY24-001 - Academic Building Roof Repair, Recover

This project includes the removal of existing roof systems and associated flashing for in-scope roof replacement areas as well as recovering existing in-scope roof areas where the existing roof system will remain in place. The Contractor will be required to furnish and install a new fully adhered black EPDM membrane roof assembly system at all roof replacement areas and a new aggregate embedded asphalt flood coat over existing to remain built-up roof areas. All work will include new flashings and new sheet metal (fascia metal, parapet cap, counter-flashings, roof jacks, etc.) as shown per roof deck assembly on drawings.
All work noted above to be performed as a specified in accordance with the design drawings, specification, and governing building codes.
The Principal Representative has determined that the entire project shall be substantially complete within 30 calendar days from the date of the Notice to Proceed.
This project may have prevailing wage requirements if construction contract is $500,000 or greater.
The scope of this project is a roof recover over the existing EPDM roof assembly. The existing roof systems consist of:
• A fully adhered EPDM membrane over gypsum cover board over one fully adhered layer of polyisocyanurate insulation over one mechanically fastened layer of polyisocyanurate insulation over an existing metal roof deck.
• Contractor to relief cut existing membrane (10’x10’ grid pattern) prior to roof recover installation. All existing roof layers below the existing membrane are to remain in place, with the installation of a new roof recover assembly consisting of:
o Metal Deck (Structural Slope) – All roof areas 1/R-102:
 New 0.060-Inch (60 MIL) non-reinforced black EPDM membrane – Fully adhered over.
 New ½’’ fire-treated, gypsum coverboard with glass mat facers (48’’x48’’ boards) – R-0.56 (Mechanically attached through prepared existing roof assembly below to deck).
o Existing roof system over metal roof deck.
o Contractor to remove and replace all wet or damaged insulation to match existing.