Specifications include, but are not limited to: The project involves adding an alternating-tread stair to provide access to the existing welding shop mezzanine, demolition of the wall between two classrooms to create a larger classroom, demolition of three smaller rooms below the mezzanine structure to allow open access from the Welding shop to the shear room. The adjacent classroom will be converted to shear room; this includes as an alternative the removal of exterior doors and sidelight and the replacement with an overhead door. Work also comprises the relocation of existing bottle filler, all associated power, lighting, fire alarm modifications, and new power for shear room equipment.; FIRE ALARM SYSTEM: A. This section of the specification includes the furnishing, assembly, construction, installation, connection and testing of a complete fire alarm system as described herein and on the drawings.; B. All related work specified in other sections shall be properly coordinated with the fire alarm equipment.; C. The additions to the system shall include all wiring, raceways, pull boxes, terminal cabinets, outlet and mounting boxes, alarm initiating devices, alarm indicating devices, and control equipment, and all other accessories and miscellaneous items required for an operating system.; INTERIOR LIGHTING: A. Fixtures: Set level, plumb, and square with ceiling and walls, and secure according to manufacturer's written instructions and approved submittal materials. Install lamps in each fixture.; B. Support for Fixtures independent of ceiling systems, ducts, and piping.: 1. Provide support system rods or wires for each fixture from structure above. Locate not more than 6 inches (150 mm) from fixture corners.; 2. Support Clips: Fasten to fixtures and to ceiling grid members at or near each fixture corner.; 3. Fixtures of Sizes Less Than Ceiling Grid: Arrange as indicated on reflected ceiling plans or center in acoustical panel, and support fixtures independently with at least two 3/4-inch (20-mm) metal channels spanning and secured to ceiling tees.; C. Suspended Fixture Support: 1. Pendants and Rods: Where longer than 48 inches (1200 mm), brace to limit swinging.; 2. Stem-Mounted, Single-Unit Fixtures: Suspend with twin-stem hangers.; 3. Continuous Rows: Use tubing or stem for wiring at one point and tubing or rod for suspension for each unit length of fixture chassis, including one at each end.; 4. Continuous Rows: Suspend from cable installed according to fixture manufacturer's written instructions and details on Drawings. Provide alignment fittings as required for uniform, level installation of continuous rows of suspended fixtures.; PLUMBING INSULATION: a. Install all insulation materials and accessories in accordance with manufacturer's published instructions and recognized industry practices to ensure that it will serve its intended purpose.; b. Install insulation on piping subsequent to installation of heat tracing, painting, testing, and acceptance tests.; c. Install insulation materials with smooth and even surfaces. Insulate each continuous run of piping with full-length units of insulation, with single cut piece to complete run. Do not use cut pieces or scraps abutting each other. Butt insulation joints firmly to ensure complete, tight fit over all piping surfaces.; d. Maintain the integrity of factory-applied vapor barrier jacketing on all pipe insulation, protecting it against puncture, tear or other damage. Seal all tears, punctures and other penetrations of the pipe insulation vapor barrier coating.; e. On exposed piping, locate insulation and cover seams in least visible location.