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<br />010100.4 –SUMMARY OF WORK <br /> <br />Project Manual for Whitted Building Roof Replacement <br />Orange County, Hillsborough, NC <br />Prepared by Atlas Engineering, Inc., 551-A Pylon Drive – Raleigh, NC 27606 <br />May 2022 <br />11. Install batt insulation in the opening and cover existing parapet wall drainage openings on <br />Roof Area B with plywood on the interior of the parapet wall. Where the drain opening <br />turns to an exterior downspout within the existing cornice trim around Building B, cut and <br />cap the downspout to match the cornice trim profile and paint to match the existing cornice. <br /> <br />12. Raise penetrations to finish a minimum of 8″ above the finished roof surface. Any flashing <br />heights less than 8″ will have to be approved by the Designer and manufacturer in writing. <br /> <br />13. Notify the Designer prior to beginning installation of the new roof system on each area. <br /> <br />14. Provide and install a 1/2" gypsum thermal barrier on all roof areas. Stagger all joints. Night <br />tie-in locations shall be saw toothed and “fill in” courses that can be removed when <br />subsequent work <br /> <br />15. Provide and install a 2.0" layer of polyisocyanurate insulation over the thermal barrier on <br />Roof Areas A and B. Mechanically fasten through all layers into the deck to meet FM 1- <br />90 wind uplift requirements over the field of the roof with associated increases in the <br />securement for the roof perimeters and corners. The building is not FM insured, but <br />fastening patterns are to be comparable with the wind uplift resistance provided by a FM <br />1-90 classification and meet the NC Building code. Stagger all joints. Night tie-in locations <br />shall be saw toothed and “fill in” courses that can be removed when subsequent work <br />begins. Locate any conduit beneath the deck to avoid damage by fasteners. <br /> <br />16. Provide and install a 2.0" base layer of polyisocyanurate insulation over the thermal barrier <br />on Roof Areas C, D, E, and F. Install an additional layer of 2” of polyisocyanurate <br />insulation over the base layer on Roof Area C. Install 1/4″ per foot tapered insulation with <br />2" minimum thickness over the base layer of insulation on Roof Areas D, E, and F. Total <br />insulation thickness at the edge of the drain sumps shall be 4.0". Mechanically fasten <br />through all layers into the deck to meet FM 1-90 wind uplift requirements over the field of <br />the roof with associated increases in the securement for the roof perimeters and corners. <br />The building is not FM insured, but fastening patterns are to be comparable with the wind <br />uplift resistance provided by a FM 1-90 classification and meet the NC Building code. <br />Stagger all joints. Night tie-in locations shall be saw toothed and “fill in” courses that can <br />be removed when subsequent work begins. Locate any conduit beneath the deck to avoid <br />damage by fasteners. <br /> <br />17. Provide and install a 1/2″ gypsum coverboard using the specified adhesives on all roof <br />areas. The building is not FM insured, but adhesion patterns are to be comparable with the <br />wind uplift resistance provided by a FM 1-90 classification and meet NC Building Code. <br />Total insulation and coverboard thickness at the edge of the drain/scupper sumps on Roof <br />Areas A and B shall be 3.0″. Alternate Bid 3 is the mechanically fasten all layers to the <br />wood or metal deck. <br /> <br />18. Provide and install tapered crickets/saddles between the drains and overlay with <br />coverboard using the specified adhesive. <br /> <br />19. Provide and install a fully-adhered, thermoplastic roof membrane and membrane flashing <br />systems with heat-welded seams on all areas. Use a designated generator for heat welding <br />DocuSign Envelope ID: 89558C18-938A-4BFF-B14A-A2214E8AA5DD