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Orange County Solid Waste <br />Scalehouse Building 07 41 13 -11 METAL ROOF PANELS <br />G.Self-Adhering Underlayment: 40-mil minimum thickness sheet,slip-resistant surfacing, <br />polyethylene-film-reinforced top surface laminated to SBS-modified asphalt adhesive, <br />with release paper backing;suitable for high temperature applications up to 250 degrees. <br /> Acceptable products include: <br />1.Mid-States Asphalt Quik-Stick HT <br />2.Grace Ice and Water Shield HT <br />3.Carlisle WIP 300 HT <br />4.Petersen PAC-CLAD HT <br />H.Accessories:Manufactured,supplied and/or otherwise approved by the standing seam <br />roofing Manufacturer. <br />I.Sheet Metal Flashings,Closures and Trim: <br />1.Provide sheet metal flashings,closures and trim fabricated from the specified <br />pre-finished metal of the same gauge,finish and color as the roof panels. <br />a.Zee Closure <br />b.Headwall Flashing <br />c.Counterflashing <br />d.Drip Edge <br />2.Provide sheet metal cleats and attachment components of the same base <br />material,one gauge thicker than the flashing or trim being secured: <br />a.Continuous Cleat <br />J.Sealants: <br />1.Polyurethane Sealant:One-component elastomeric gun grade polyurethane <br />sealant conforming to ASTM C920​,Type S,Grade NS,Class 25,and use NT,M, <br />A,G,or O as required by substrate conditions.Color to match adjacent <br />materials. <br />2.Silicone Sealant:One-component,non-sag,neutral cure,low-modulus,UV <br />resistant,high performance silicone sealant.Meet ASTM C920​,Type S,Grade <br />NS,Class 100,Use M,G,A or O.Color to match adjacent materials.Utilize <br />where exposed. <br />3.Sealant Tape:3/16-inch x 7/8-inch tri-bead,non-skinning butyl sealant tape. <br /> Utilize 2-1/2-inch wide by 3/16-inch thick triple-bead,non-skinning butyl sealant <br />tape where indicated in Contract Drawings or required by metal roof panel <br />manufacturer. <br />4.Butyl Sealant:Gun grade,non-skinning,non-hardening,flexible blend of butyl <br />rubber and polyisobutylene sealant. Utilized where concealed between sheet <br />metal sections,laps,etc. <br />Docusign Envelope ID: FA2D0569-6BCE-4E38-B3EE-9B3EFD09A753