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TranSystems Corporation - LGM Construction

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501070099 Federal Express Oakland Sort Expansion Issued for Bid 10/11<br />

A. Furnish cooler and freezer boxes, including self-contained refrigeration system. See<br />

drawings for approximate sizes. Use manufacturer’s matching size or next larger standard<br />

size.<br />

B. Insulation Panel Enclosure:<br />

1. Panels shall be prefabricated, insulated sections. They shall consist of interior<br />

and exterior metal pans precisely formed with metal dies and checked with<br />

gauges for uniformity. The metal panels shall be placed in steel molds with liquid<br />

urethane injected into the mold to form rigid insulation. “Foamed-in-place” must<br />

bind tenaciously to interior and exterior metal pans to form a rigid, strong wall.<br />

Panels shall be made without internal wood or metal structure members, with<br />

100% of each panel, exclusive of metal pans, being urethane insulation. A<br />

flexible vinyl gasket shall be fitted on the interior and exterior of each panel along<br />

every tongue edge to provide gasketing at each joint. Floor panels shall be<br />

fastened together with threaded post-tension system. Rods shall be contained in<br />

seamless weld tubes, foamed-in-place and held securely by steel fins.<br />

2. Insulation shall be 4” thick, RIM (reaction injection molded) injected urethane,<br />

expanded with R141b, no CFC’s used. In-place density of 2.25 lb./cu. ft. 95%<br />

closed cell, with low k factor, and shall meet ASTM E-84 (UL723, FM4411).<br />

3. Flame spread limited to 25 or lower, smoke generation limited to 450 or lower.<br />

C. Wall and Ceiling Finishes:<br />

D. Floors:<br />

E. Doors:<br />

1. Exposed Exterior: 24 ga. white G90 galvanized<br />

2. Interior Walls: 24 ga. white G90 galvanized<br />

3. Interior Ceiling: 24 ga. white G90 galvanized<br />

1. Floors shall be pour-in-place concrete over heating system, vapor barrier and<br />

insulation, all provided by this contractor. Freezer slabs will be depressed to<br />

accept “roller bed flooring system” by others.<br />

1. Man doors, sizes as shown on drawings<br />

a. Provide flush-mounted, infitting doors hinged as per plan. Doors shall be<br />

constructed in a similar fashion as other panels. Each door shall contain<br />

a full perimeter 11-gauge welded steel frame to ensure structural stability.<br />

Doors shall seal to section via neoprene plastic gasket with magnetic<br />

core. Gaskets shall seal three sides while a flexible sill weep gasket shall<br />

seal bottom of door. Gaskets shall be replaceable without the use of tools<br />

WALK-IN COOLERS AND FREEZER 13100-3

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