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ECS Pacific, Inc. <br />Project No. 81:1145 <br /> <br />City of Santa Ana Public Library Renovation <br />26 Civic Center Plaza <br />Santa Ana, California 92701 <br /> <br />COLD FLUID-APPLIED WATERPROOFING <br /> <br />07 1416 - 11 <br /> <br /> <br />N. Within 4 hour re-coat window apply CIM at desired wet mil thickness to achieve a 120 <br />dry mil application respective of desired warranty duration. <br />1. The re-coat window is 1 to 4 hours at 70°F (21°C), and is affected by the air and <br />substrate temperature. Consult manufacturer in determining re-coat window for <br />specific temperatures. <br />O. For Tile: Over 120 mil waterproofing system, apply one 15 to 20 mil tack coat and <br />broadcast clean, graded, kiln dried, 30 mesh sand aggregate to refusal at horizontal <br />surfaces and patted-in at vertical surfaces. Tack coat should be installed 2 to 4 hours <br />after base coat. Excess aggregate may be removed the following day, once cured. <br />P. Joint Lines: <br />1. Prepare for joint lines should rain or other conditions require work stoppage or <br />extended delay. <br />2. Install joint lines clean and straight. Install overlap 6-inches minimum to ensure <br />an impervious joint. <br />3. Severely abrade with wire brush or sandpaper and apply bonding agent to all <br />areas where the fluid-applied waterproofing has cured beyond its recoat window. <br />Q. Recoating: <br />1. Recoat the fluid-applied waterproofing system within the recoat window to obtain <br />maximum interlayer adhesion to build specific thickness. <br />2. Severely abrade with wire brush or surface grinder; apply bonding agent, and <br />recoat, if fluid-applied waterproofing has cured more than the recoat window. <br />Acceptable adhesion can only be achieved through aggressive abrading. <br />R. Curing: <br />1. Cure fluid-applied waterproofing in accordance with manufacturer’s instructions. <br />2. Curing Time: <br />a. Allow minimum solvent release time of 24-hours at 60 F° (15 C°) for a 60- <br />wet mil coating thickness. <br />b. Allow 48 hours for a 90 mil thickness, and 72 hours for thicknesses greater <br />than 90 mils hours at 60 F° (15 C°). <br />3. Receive approval of cured coating by Engineer. <br />3.8 FIELD QUALITY CONTROL <br />A. Testing Agency: General Contractor shall engage a qualified independent testing <br />agency acceptable to the architect to perform tests and inspections. <br />B. Membrane Integrity Testing: Test all horizontal deck areas before placing overlying <br />construction: <br />1. ELD Testing: Testing agency surveys entire horizontal waterproofed area and <br />flashings to locate discontinuities in the system assembly using ELD in <br />accordance with ASTM D7877 and ASTM D8231. <br />a. After testing, repair areas of discontinuities, repeat tests, and make further <br />repairs until waterproofing and flashing installations are contiguous. <br />1) Cost of retesting is Contractor's responsibility.