a. Interior of the van shall provide a minimum of 74” of standing headroom and shall be fully insulated and finished per the following specifications: b. Insulation shall be 3M Thinsulate SM600L with two layers of 1.6” material, each specified at an R-Value of 5.2 (10.4 collectively), along with a layer of Low-E Radiant barrier, resulting in a total combined R-Value of 17.4. c. Ceiling shall be finished with the contour of the OEM-shaped roof to maintain the maximum allowable interior standing height. There shall be no flat ceiling. d. Walls shall be base-lined with ¾” ACX sanded plywood. e. The ceiling shall be base-lined with ¼” ACX sanded plywood. f. The floor shall be base-lined with ½” ACX sanded plywood. g. Walls and ceiling shall be covered with nonporous white fiber-reinforced polymer panels
