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<br />073113.8 – ASPHALT SHINGLED ROOF SYSTEM <br /> <br />Project Manual for Motor Pool Main Building Roof Replacement <br />Orange County, Hillsborough, NC <br />Prepared by Atlas Engineering, Inc., 551-A Pylon Drive – Raleigh, NC 27606 <br />August 2021 <br /> <br />manufacturer to obtain proper coverage, and color variation. Snap chalk lines as necessary to <br />ensure straight and even placement. Maintain the shingle exposure recommended by the <br />manufacturer for the specific shingle selected. Racking of shingles is not accepted regardless of <br />acceptance by the manufacturer. <br /> <br />F. Ridges and Hips:At ridges , install shingles up to the ridge deck opening (cut plywood at nailbase <br />to allow for ventilation as shown on the details – Alternate Bid 01). Allow for adequate coverage <br />by making sure that the last course of shingles will not be exposed more than 5" when the hip or <br />ridge cap shingles are applied. <br /> <br />1. At the ridge, install ridge vent material in accordance with the manufacturer’s installation <br />instructions. <br />2. At ridge and hip, install shingles specifically intended for capping ridge and hip. <br />3. Install cap starting from the bottom of a hip and one end of the ridge. <br />4. Bend the cap along the centerline of the longer dimension to form it in place over the hip. <br />Fasten each cap with 2 fasteners a minimum of 1" in from each side edge and at a <br />location from the end of the cap as recommended by the manufacturer to ensure <br />5"exposure and full coverage of the fasteners with installation of next cap shingle. <br />5. Be sure that fasteners used are of sufficient length to penetrate through the shingle, the <br />ridge vent (at ridge only), and provide proper penetration into the roof deck as specified. <br />6. Install succeeding courses of cap shingles working up the hip or along the ridge. If the <br />manufacturer allows face-nailing the last cap in a row of hip or ridge, protect the nail <br />heads with a spot of asphalt roofing cement and an aesthetic cap shingle set in asphalt <br />cement. <br />7. Install the pre-fabricated ridge ventilation system with filters, support material, and <br />baffles in accordance with the ridge ventilation system manufacturer and shingle <br />manufacturer’s installation instructions. The direction of lap for the ridge cap shingles <br />should be kept consistent along each ridgeline and should be determined prior to the start <br />of installation. <br />8. The cutting of the deck for the ventilated ridge detail should be held back 6” from the <br />gable ends and should stop 12”-18” back from ridge-to-valley intersection in each <br />direction to allow for proper termination of the pre-fabricated vent material and <br />securement of the tops of the valley flashings. <br /> <br /> <br />G. Use starter course along rake edge. <br /> <br />H. Follow manufacturer’s requirements for perimeter sealing of shingles if necessary to meet wind <br />uplift resistance requirements. <br /> <br />I. To prevent visible areas of variation in shingle color or texture premix the bundles before loading <br />the roof to provide even distribution of bundles. After initial installation begins, inspect the roof <br />from the ground at a distance of no greater than 40 feet to confirm that consistent appearance has <br />been obtained. This process should be repeated throughout installation at regular intervals. <br />Failure to mix bundles resulting in uneven areas of coloration may result in rejection of the <br />installation. <br /> <br />DocuSign Envelope ID: 9514E4EC-C3C9-4752-8A7F-22E83B22BB8E