Roof replacement - main flat roof remove the existing roofing material down to the wood decking. Inspect any damaged wood and replace install new wood nailer along the rising wall as needed install new curbs around the existing skylights to reach the 8 inch minimum required per the manufacturer install bilco s roof hatch with newly built curb install 1/2 inch hd iso mechanically fastened throughout the roof install tapered insulation crickets in front of the skylights and roof hatch install . 0 epdm membrane roof system install new 24 gauge kynar coated edge metal around the perimeter and coping on the rising wall. Install hvac unit on 4x4 blocks over a slip cover