Specifications include, but are not limited to:Componentization Descriptions: 811011 Building shell: the exterior walls, excavation within the building footprint, foundation, floors, and roof structural system and decking of a building. The walls consist of the wall layers starting with the exterior building skin and ending at the inner thermal layer. The suggested useful life of a building shell is 30 years. 811023 Roof Coverings: includes the covering material used to establish the water barrier o n t h e b u i l d i n g ’ s r o o f d e c k . T h e r o o f c o v e r i n g s t a r t s w i t h t h e first membrane above the roof decking materials including the urethane layer, coating, shingles, films, metal panels, clay tiles and all material installed above the roof deck; The recommended useful life of clay tile is 30 years. The recommended useful life of a metal panel roof is 20 years and a urethane roof or shingle roof is 15 years. The recommended useful life of all other roof types is 15 years. 811022 Elevator system: comprised of the elevator and escalator conveyance systems including controls; The recommended useful life of this system is 20 years. 811024 Floor Coverings: includes carpet, ceramic tile, stone, terrazzo, vinyl tile, wood, laminate and linoleum floor coverings, and other types of floor coverings and all padding and barrier sheeting installed above the concrete slab or wooden deck; The recommended useful life of ceramic tile, stone and terrazzo is 30 years. All other floor types should have a useful life of 15 years. 811014 Interior finish: all walls, partitions, ceilings and millwork that are inside the building shell walls. This will include but not limited to, all framework, interior doors, interior windows, sheet rock, paneling, paint and any other wall and ceiling coverings; The recommended useful life is 15 years. 811020 HVAC: includes the chillers, condensers, exhaust fans and coil units, heating strips, chilled/heating water supply and return piping, air ducts, registers, climate control panels and all circuitry connected to the power supply panel. The recommended useful life of this equipment is 15 years
