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OC DSS -Hillsborough Commons Skylight Replacement Smith Sinnett / 2020054 <br />Hillsborough, NC Orange County <br /> <br />NON PERMEABLE AIR AND VAPOR BARRIERS 07 27 00 - 4 <br />1. Available Products: Subject to compliance with requirements, products that may be incorporated <br />into the Work include, but are not limited to, the following: <br />a. Carlisle Coatings & Waterproofing; CCW-705. <br />b. Grace, W. R. & Co.; Perm-A-Barrier. <br />c. Henry Company; Blueskin SA. <br />d. Meadows, W. R., Inc.; SealTight Air-Shield. <br />e. NEI; AC AirSeal. <br />f. Rubber Polymer Corporation; Rub-R-Wall SA. <br />g. Tremco, Incorporated; ExoAir 110 <br />2. Physical and Performance Properties: <br />a. ASTM E2357: Standard Test Method for Determining Air Leakage of Air Barrier <br />Assemblies, <br />b. Air leakage: <0.0001 CFM/ft² @1.6 lbs/ft2 to ASTM E2178 and ASTM E283 and have no <br />increased air leakage when subjected to a sustained wind load of 10.5 lbs/ft2 for 1 hour and <br />gust wind load pressure of 62.8 lbs/ft2 for 10 seconds when tested at 1.6 lbs/ft2 to ASTM <br />E331, <br />c. Vapor permeance: 0.03 perms to ASTM E96 (Desiccant Method), <br />d. Membrane Thickness: 0.0394 inches (40 mils), <br />e. Low temperature flexibility: -22 degrees F to CGSB 37-GP-56M, <br />f. Elongation: 200% to ASTM D412-modifed, <br />g. Meets CAN/CGSB-51-33 Type I Water Vapor Permeance requirements <br />2.3 PRIMERS <br />A. Primer for self-adhering membranes at temperatures above 25 degrees F shall be Aquatac Primer <br />manufactured by Henry or equal; a polymer emulsion based adhesive, quick setting. Primer shall have <br />the following physical properties: <br />1. Weight: 8.7 lbs/gal, <br />2. Solids by weight: 53%, <br />3. Water based, no solvent odors, <br />4. Drying time (initial set): 30 minutes at 50% RH and 70 degrees F <br />B. Adhesive for self-adhering membranes at all temperatures shall be Blueskin Adhesive manufactured by <br />Henry or equal, a synthetic rubber based adhesive, quick setting, having the following physical <br />properties: <br />1. Weight: 6 lbs/gal, <br />2. Solids by weight: 35%, <br />3. Drying time (initial set): 30 minutes <br />2.4 JOINT TREATMENT, PENETRATION AND TERMINATION SEALANT <br />A. Joint Treatment, penetration and termination Sealant shall be HE925 BES Sealant manufactured by <br />Henry or equal; a moisture cure, medium modulus polymer modified sealing compound having the <br />following physical properties: <br />1. Compatible with sheet air barrier, roofing and waterproofing membranes and substrate, <br />2. Complies with Fed. Spec. TT-S-00230C, Type II, Class A, <br />3. Complies with ASTM C 920, Type S, Grade NS, Class 25, <br />4. Elongation: 450 – 550%, <br />5. Remains flexible with aging, <br />6. Seals construction joints up to 1 inch wide <br />DocuSign Envelope ID: 51195338-6F17-4D2B-B990-4A82329E7F4E