Orange County NC Website
Browse       Search
DocuSign Envelope ID:A9CF8A9E-4CDB-4BB9-A678-D4AD80CD1393 <br /> 5thWall Building Diagnostics Consultants Roof Replacement <br /> Central Recreation Center <br /> Hillsborough,NC <br /> August 2016 <br /> PART 2 PRODUCTS <br /> 2.01 Sealants <br /> A. General: except as specifically directed otherwise by the Designer, use only the type of <br /> sealants described in the section. <br /> B. Sealant: Shall be low modulus, non-staining one-part urethane and of gun-wade <br /> consistency. Sealant shall be easily workable and shall be capable of producing a <br /> smooth attractive finish. For joints in vertical surfaces, provide ASTM C920, Type S or <br /> M, Grade NS, Class 25,Use NT. For joints in horizontal surfaces,provide ASTM C920, <br /> Type S or M, Grade P, Class 25, Use T. Color shall be approved by Owner. <br /> C. Sealant shall be Dynatrol I, by Pecora Corporation; Sonolastic NP-1, by Sonneborn; <br /> Sikaflex 201,by Sika Corporation, or approved equal. <br /> 2.02 Back-up Materials <br /> A. General: Use only those back-up materials which are specifically recommended for this <br /> installation by the manufacturer of the sealant used, and which are non-absorbent and <br /> non-staining. Closed-cell back-up materials must be 1/8 inch larger in diameter than the <br /> width of the joint; soft back-up materials must be 25% larger in diameter than the width <br /> of the joint. <br /> B. Acceptable types include closed-cell, resilient urethane or polyvinylchloride foam; <br /> closed-cell,polyethylene foam; closed-cell sponge of vinyl or rubber, or approved equal. <br /> C. Fire Rated Walls: Mineral wool or Ultra-Block as manufactured by Pecora. The wall <br /> shall have a minimum two hour rating. <br /> 2.03 Cleaner: Shall be xylol, toluene, or commercial solvent recommended by the sealant <br /> manufacturer. <br /> 2.04 Primer: Shall be as supplied by sealant manufacturer. <br /> 2.05 Miscellaneous Materials: All other materials not specifically described but required for complete <br /> and proper caulking and installation of sealants shall be first quality of their respective kinds, <br /> new, and as selected by the Contractor subject to the approval of the Owner. <br /> PART 3 EXECUTION <br /> 3.01 Examination <br /> A. Examine all areas and conditions under which work of this section will be perfoimed. <br /> B. Correct conditions detrimental to the proper and timely completion of the work. Do not <br /> proceed until unsatisfactory conditions have been corrected. <br /> 3.02 Preparation <br /> A. Do not add liquids, solvents, or powders to the sealant. Mix multi-component <br /> elastomeric sealants in accordance with manufacturer's instructions. <br /> 16-171 Sealants and Caulking <br /> 079200-2 <br />