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<br />ApPROVED ASSEMBLIES: <br /> <br />Deck Type 7: <br /> <br />Existing Substrates: <br /> <br />System Type: <br /> <br />Recover <br /> <br />Wood, Steel, Concrete, Granule Surfaced or Smooth Surface BUR <br /> <br />AU General and System Limitations apply. <br /> <br />Sprayed polyurethane foam covered with an approved elastomeric coating. <br /> <br />Deck Requirements: For recover applications, existing roof deck shall be in compliance with <br />applicable Building Code and Roofing Application Standard RAS 109. <br /> <br />Surface Preparation: Substrate shall be free of loose dirt, grease, oil or other contaminants prior to <br />priming or foam. application. Remove loose dirt or debris by use of <br />'compressed air, vacuum or brooming. No washing shall be permitted. Oil, <br />grease, release agents or other CODl:Bmlmmts shall be removed with proper <br />cleaning solutions. <br /> <br />Polyurethane Foam <br />Application: <br /> <br />Protective Coating <br />Application: <br /> <br />Maximnm Design <br />Pressure: <br /> <br />8 <br /> <br />Primers shall be applied in accordance with the nUllll~.:facturer' s instructions. <br />All primers must be thoroughly dry and cured prior to foam. application. <br /> <br />The polyurethane foam. sball be applied directly and uniformly over the entire <br />surface at the specified thickness in compliance with the requirements set <br />forth in RoofIng Application Standard RAS 109. The sprayed polyurethane <br />foam shall be feathered at the edges to produce a Smooth tr~ition, <br /> <br />Shall apply a Miami-Dade County approved elastomeric roof coating with a <br />current NOA in accordance with the guidelines listed in the NOA. <br /> <br />Polyurethane foam smface shall be free of moisture, dust, debris, oils, tars, <br />grease or other materials that will impair adhesion of the protective coverings. <br />Any damage or defects to the polyurethane foam smface shall be repaired <br />prior to the coating application. The base coat shall be applied the same day <br />as the foam when possible. If more than 72 hours elapse prior to the <br />application of the base coat, the polyurethane foam shall be inspected for IN <br />degradation. <br /> <br />-457.5 psf (for concrete deck applications) (See General limitation #6) <br />-82.5 psI. (fot steel deck applictltions) (See General Limitation #6) <br />-45 psf (jor all other applications) (See General Limitation #6) <br /> <br />NOA No: 06-1031,06 <br />Expiration Date: 03/07/12 <br />Approval Date: 02101107 <br />Page 4 of 5 <br />