Main Roof Repairs: Remove and dispose all perimeter sealants at existing low-sloped PVC roof terminations and replace with new sealant as specified. Front Lobby Atrium Metal Roof: Install new metal over metal recover system as specified; install cavity with 1” thick extruded polystyrene insulation board. Main Roof Repairs: Remove and dispose all perimeter sealants at existing low-sloped PVC roof terminations and replace with new sealant as specified. Front Lobby Atrium Metal Roof: Install new metal over metal recover system as specified; install cavity with 1” thick extruded polystyrene insulation board. A. Remove and dispose existing surface fastened metal roof and flashing, gutters and downspouts. B. Clean and prime existing concrete roof deck (below existing roof framing) and install new 40-mil self-adhering modified bitumen metal and tile underlayment to entire concrete deck. C. Install new pre-finished 24 ga. galv. steel surface fastened R-Panel roof and flashings, gutter and downspouts.
