Building AV600 Roof Repairs for U.S. Navy/Naval Facilities Engineering Command Southeast

This is a design-build project located at Naval Station Guantanamo Bay, Cuba. The project is to replace entire existing roofing on all roof areas on the east side of two-story lean-to of Operational Hangar AV600, damaged as a result of Hurricane Sandy. Building AV600 was built in 1954 and has a floor size of 106,602 square feet. The building is currently used as an aircraft hanger/air terminal. Building construction is two story permanent concrete and steel structure, CMU and concrete siding, rolled and coated sheet metal roofing and concrete on slab foundation.

The work involved the demolition of the existing mechanically fastened, single ply EPDM and TPO membrane roofing and underlying built-up roofing and insulation and removal of all roof systems down to the concrete deck. We constructed a new modified bitumen roof system and installed minimum R20 roof insulation system over conditioned interior spaces. The scope of work also included the installation of new lightning protection system for the entire facility. Removal and reinstallation of mechanical and vent piping was necessary to complete the work. The existing underlying built-up roof and mastics contained asbestos and all painted surfaces contain lead.