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DocuSign Envelope ID: B49FB256 -4ADF- 4759- AF63- 134AD44FC239 <br />5thWall Building Diagnostics Consultants <br />1.05 Environmental Conditions <br />Slate Roof Replacement <br />Orange County Skills Development Center <br />Chapel Hill, NC <br />August 2017 <br />Material installation shall proceed only when weather conditions are in compliance with <br />manufacturer's recommendations for installation, and no precipitation is eminent. Materials installed <br />during adverse weather conditions shall be subject to rejection including removal and replacement. <br />1.06 Quality Assurance <br />A. Provide sufficient qualified workmen and supervisors who shall be present at all times <br />during execution of this portion of the work, and who shall be familiar with the type of <br />construction involved and the materials and techniques specified. <br />B. Contractor shall have a minimum of 10 years' experience in successfully installing slate <br />roofing. Submit list of completed projects; include names, addresses, phone numbers; <br />include names of key personnel and their experience who will work on this specific project. <br />PART2 PRODUCTS <br />2.01 Materials <br />A. Slate: Shall be standard slate, 9 "X16 "X1 /4" in size, or as required to match existing. Slate <br />shall be hard, dense, sound rock conforming to the requirements of ASTM C- 406 -89 Grade <br />1. Slate shall be machine punched for two nails each. Corners shall be square cut. Color <br />shall match existing. Slate shall be manufactured by Evergreen Slate Co., Inc., 68 Potter <br />Ave., Granville, NY 12832; Buckingham- Virginia Slate Corp., Arvonia, VA, North <br />Country Slate, Scarborough, Ontario, Canada, or approved equal. Delivery shall be <br />within four (4) weeks of ordering. <br />B. Underlayment: Shall be a self - adhering membrane composed of a rubberized asphalt <br />laminated to a polyethylene film. Total membrane thickness shall be 40 Mils minimum. <br />Materials shall be similar to Ice and Water Shield by W.R. Grace, Cambridge, <br />Massachusetts; Polyguard Deck Guard by Polyguard Products, Inc., Ennis, Texas; or <br />Royston Ice Guard 108AGN by Royston, Pittsburgh, Pennsylvania or approved equal. <br />C. Eave and Ice Dam Protection: Shall be a self - adhering membrane composed of a rubberized <br />asphalt laminated to a polyethylene film. Total membrane thickness shall be 40 Mils <br />minimum. Materials shall be similar to Ice and Water Shield by W.R. Grace, Cambridge, <br />Massachusetts; Polyguard Deck Guard by Polyguard Products, Inc., Ennis, Texas; or <br />Royston Ice Guard 108AGN by Royston, Pittsburgh, Pennsylvania or approved equal. <br />D. Fasteners: <br />For slate: shall be large -head solid 12 gauge copper slating nails. Fasteners for <br />slates 18 inches or less in length shall be 1 1/4 inch in length minimum; use 1 1/2 <br />inch long fasteners for slates longer than 20 inches; hips and ridges shall be secured <br />with 2 inch long fasteners. <br />2. For underlayment materials: shall be roofing nails; 1 -1/2 inches long. <br />17 -198 Slate Roofing <br />073300.2 <br />