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Objective of this Scope of Work

► To ensure that the underlayment and roofing materials are installed in a manner consistent with all applicable building codes, manufacturer's instructions and warranty requirements, and acceptable construction practices.

Terms used in this document

►SITE SUPERINTENDENT: shall refer to any Company representative with authority to enforce this Scope of Work.
►SUBCONTRACTOR: shall refer to the Subcontractor's organization, its employees, or any representative of the Subcontractor assigned the authority to perform per this Scope of Work.

Acceptable Performance
► Roofing is divided into two phases: Underlayment and Roofing. Both phases are included in this Scope of Work. Payment will be made per each of the phases.
Roofing: General

► The Roofing Subcontractor is the subcontractor most subject to serious injury on the jobsite. The Subcontractor is required to have OSHA-approved ladders and use one of the approved safety devices that anchor roofers to the roof area. If the Subcontractor uses pump-jack scaffolding, the scaffolding must have handrails installed. Toe boards are against code and shall not be used.
► The Subcontractor is required to use OSHA-approved safety measures for securing workers to the roof.
► All work is to be done by trained, experienced individuals.
► Roofing should be installed according to manufacturer’s recommendations and should not leak under normal conditions.
► Roofing shall be applied only when the supporting roof decking is clean and dry.
► If any roof sheathing is warped, the Site Superintendent should be notified immediately. Applying roofing over a bad decking job will result in a poor-quality job. Roof sheathing shall not bow more than 1/4 inch in 2 feet.
► Roofing should be secured using the correct number and size fasteners properly positioned on the roofing material. Fasteners shall be compatible with the flashing used. The fasteners approved by the manufacturer must be used.
► If the Subcontractor has contracted for a turnkey job, the Subcontractor shall furnish all materials of the type, brand, and color specified by Company.
► All checks shall be made jointly to the roofing supplier and the Subcontractor unless the Subcontractor brings all materials onto the jobsite. If a supplier delivers roofing materials to the jobsite, Company reserved the right to issue joint checks to the roofer and the roofing supplier.
► The Subcontractor will be paid by the squares installed, not by the number of bundles delivered to the jobsite.

Roofing: Underlayment

► Underlayment shall be installed over the entire roof as soon as the roof sheathing is complete.
► The underlayment shall lap at least 2 inches horizontally and 4 inches at any side lap, and should lap 6 inches at hips and ridges.
► One layer of underlayment is to be applied parallel to the eves lapping each course of the felt over the lower course at least 2 inches horizontally, 4 inches where ends join, and 6 inches at hips and ridges.
► Underlayment is to be applied only to dry decking. It is not to be applied to damp, wet, or warped decking.
► Chimneys should be counter-flashed to permit movement. A saddle should be installed where the chimney projects through the roof below the ridge.
► Valleys are to be constructed by centering 14-inch-wide aluminum valley metal flashing over the underlayment, securing with approved shingle fasteners, and covering with asphalt shingles.
► Wall flashing shall be installed in the same manner as valley flashing.
► All chimneys shall be flashed.
► The Subcontractor shall establish a drip edge to extend no less than 1/4 inch and not more than 3/4 inch over the fascia.


► All roofing shall be blind fastened with all fasteners fully covered, if possible. Any nail holes shall be completely sealed. If nails or screws are used they must be corrosion-resistant nails, a minimum 12-gauge with a 3/8-inch head. If staples are used they must be corrosion-resistant staples, a minimum 16-gauge with a 15/16-inch crown width. All staples must be applied with pneumatic staplers.
► All roofing shall be applied true and straight. A chalk line shall be used for coursing.
► Cut lines running up the roof on asphalt shingles should not vary more than 1/2 inch to either side of a line stretched from the eve to the ridge running parallel to the gable. Shingle edges running parallel to the ridge should vary no more than 1/2 inch from a line parallel to the eve or ridge and stretched from one gable to the adjacent gable unless designed otherwise.
► Shingle reveal at the ridge after capping shall be within 1 inch plus or minus of the intended shingle reveal stipulated by the manufacturer. Edge cuts shall be square and clean. The ridge cap shall begin at the roof end opposite the direction that prevailing winds travel. All nail holes shall be caulked with silicone caulk.
► Fasteners shall be long enough to penetrate into the decking a minimum of 1/2 inch. A penetration of 3/4 inch is preferred. Fasteners must be driven straight into decking.
► All roof vents (continuous ridge vents or turtle-back vents) shall be installed per plan.
► If shingles are applied, a cover shingle is to be used to cover all horizontal and headwall flashing.
► All excess material shall be stacked in one location at the front of the lot. Excess material is to be counted, and amounts and types are to be listed on the Work Order.
► All scrap material, shingle wrappers, and other trash shall be cleaned up and placed in the dumpster or the designated area for trash.
► Any items found during the final inspection that need correction shall be corrected before payment will be made.

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