12-28-2015 Council Packet - Laserfiche WebLink

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3.05 WORKMANSHIP A. All Work of this Contract shall be done in a workmanlike manner, by skilled personnel experienced in the particular type of work being performed. The coating shall be performed using approved methods, acceptable tools and practices, and shall be performed in a manner satisfactory to the Engineer. B. Proceed with surface preparation and coating application only when air surface temperatures are above the manufacturer's recommended minimum surface temperature in degrees Fahrenheit and below 100 degrees F, and surface temperature is at least 5 degrees above wet bulb air temperature reading. Coating shall not be applied in rain, snow, fog or mist, or when relative humidity exceeds 85 percent. No coating shall be applied when it is expected that the relative humidity will exceed 85 percent or when the air temperature will drop below 50 degrees F (40 degrees F when fast cure products are used) within 8 hours after the application of the coating. If working conditions are questionable, the Engineer shall make the decision and the Contractor shall accept his interpretation as final and binding. The Engineer intends to monitor temperature and humidity to insure Contractor's compliance with the listed conditions. The Contractor shall record the relative humidity, air temperature, and surface temperature upon commencement and completion of coating application for each day said work is undertaken. The daily log shall be submitted to the Resident Project Representative for comparison with the Owner's data and verification or compliance. C. Each coat shall be applied at the specified rate and in the manner recommended by the coating manufacturer and it shall be well worked into the surface to which applied. No laps or brush marks shall show. The film thickness of the coatings will be measured and any readings below the specified film thickness shall be corrected by applying additional coat(s). Where thinning is necessary, only the products of the manufacturer furnishing the coating and for the particular purpose shall be allowed. All thinning shall be done strictly in accordance with the manufacturer's instructions, as well as with the full knowledge and approval of the Engineer. Dry film thickness will be measured be means of the "Mikrotest" gage manufactured by the Nordson Corporation of Amherst, Ohio, or equivalent; and measurements of wet mil thickness will be accomplished by use of the "Nordson" wet film gage or such other gage as the Engineer might determine as being satisfactory. D. Care shall be given to insure a uniform coating carefully worked with a brush around rivet heads, weld seams, scabmarks, plate overlap, joints, and other irregularities in the surface. Each coat shall be allowed to dry thoroughly before the next coat is applied as required by the coating manufacturer's written recommendations. E. If the coating is applied by spraying, use suitable nozzles to provide an adequate supply of air within the proper pressure range to the liquid in the container and to the atomizing nozzle, all as recommended by the coating and equipment manufacturers as being best suited or necessary for the production of good work. All necessary precautions must be taken to avoid spray fallout on and the consequent damage to any works, improvements, or properties of either the Owner or of other parties, wherever located. The Contractor shall be responsible for any and all damage resulting from drifting of the spray. F. No exterior spray painting will be allowed, except as noted. The Contractor shall take necessary precautions to avoid paint fallout on and the consequent damage to any works, improvements, or properties of either the Owner or of other parties, wherever located. The Contractor shall be responsible for any and all damage resulting from drifting of the paint. WATER TOWER REPAINTING © 2012 Stantec 1 193803415 09 91 55 - 8