GENERAL SPECIFICATIONS: The thermo-kool or equivalent exterior walk-in specified shall be prefabricated modular construction. It shall be designed and constructed to allow fast and easy field assembly, disassembly, relocation and enlargement by the addition of like modular panels. Exterior walk-in cooler shall be designed and constructed as shown on plan. Overall size of walk-in cooler shall have outside dimensions of 14 ft 0 in deep X 24 ft 0 in width X 9 ft 2 in height to fit exact job site requirements. All measurements must be field verified prior to construction by the vendor. PANEL CONSTRUCTION: Wall and ceiling panel widths shall be within 1" increments up to 46" wide. Corner panels shall be 90-degree angle, 12" x 12". All panels shall be interchangeable with like panels for fast and easy assembly. All panels shall consist of metal pans formed to precise dimensions. Exterior finishes to be stucco aluminum except for the exterior door frame. Exterior door frame to be stucco aluminum. Internal panels to be stucco aluminum. Ceiling panels to be Pre-painted White Stucco aluminum panels. Insulation shall be "foamed-in-place" urethane to bond permanently to complete inner surfaces of both interior and exterior metal pans to form strong rigid unit. Panels shall not have internal wood or metal support, framing, straps, or other non-insulating members. Each panel shall be 100% urethane foam insulation exclusive of metal pans. Perimeter structure shall be formed of DURATHANE, high density urethane insulation forming tongues and grooves to assure vapor and airtight joints and to prevent pre-installation damage and deterioration of exposed urethane surfaces. Vinyl Roof Cap to be installed, with a slope in the direction of front to back with the door being the front of the unit and the back is the opposite back wall. Flashing to seal cap to building walls shall be provided. Vertical trim to be provided by awardee to close the gap between the existing building exterior walls and the exterior walls of the new cooler. WARRANTY: Panels shall be covered by a Ten-Year Factory Warranty. INSULATION: Insulation shall be 4" thick rigid, zero ozone depleting HFC 134a blown Class I urethane foam classified according to UL 723 (ASTM-E-84) as tested by Underwriters Laboratories, Inc. The core material has a flame spread of 25 or less and a smoke density of 250. The urethane foam is foamed-in-place to bond to inner surfaces of metal pans having an average thermal conductivity (K factor) of 0.13 BTU/hr./sq. ft. per degrees /Fahrenheit/inch. As tested in accordance with ASTM C 518-2004, the R factor for coolers at temperatures of 55 degrees F is greater than 29.0 for 4" thick panels.
