Specifications include, but are not limited to: Section 1: • Remove the existing EPDM and dispose off-site. (Existing insulation will remain) • Attach two layers of 20 PSI poly iso insulation to achieve an R-30 Value. • Install sumps around the drains to aid in positive water drainage. • Install wood blocking around the perimeter to match new insulation heights. • Fully adhere new white 60 mil TPO membrane with manufacturer’s flashings and details. • Install new 24-gauge, Kynar finish, shop fabricated gravel stop around the perimeter. • Install new aluminum retrofit drains where existing. • Provide and install new wood supports and protection mat under the gas lines. Section 2: • Cut the existing EPDM membrane to inspect the existing insulation for moisture or deterioration. Wet or deteriorated insulation will be replaced at the below square foot price. • Attach one layer of 20 PSI poly iso insulation to achieve an R-30 Value. • Install sumps around the drains to aid in positive water drainage. • Install wood blocking to match new insulation heights. • Install new batt insulation and backer rod along expansion joints. • Fully adhere new white 60 mil TPO membrane with manufacturer’s flashings and details. • Install new 24-gauge, Kynar finish, shop fabricated gravel stop on the outside edge. • Install new aluminum retrofit drains where existing. • Install TPO walk way pads at the roof hatch. • Provide and install new wood sleepers and a protection mat under the skid units and gas lines.
