X hits on this document

1552 views

0 shares

0 downloads

0 comments

168 / 324

    • 2.2

      MATERIALS

      • A.

        Polyicynene Spray Insulation: Icynene; hydrophobic, low-density, open-cell modified polyicynene; conforming to the following:

        • 1.

          Thermal Resistance (R-Value/inch): ASTM C518; 3.6 hrlsq ftldegree F/BTU. (RSI 0.62 hr/m2/degree C/W).

        • 2.

          Air Permeance: ASTM E283; 0.0049 I/m2/second for 5.25 inches(133 mm) of material.

        • 3.

          Water Vapor Transmission: ASTM E96; 10 perms for 5 inches (127 mm) of material.

        • 4.

          Sound Transmission Class (STC): ASTM E90; STC 37 in wood stud wall.

        • 5.

          Noise Reduction Coefficient (NRC): ASTM E90; NRC-0.7 in wood stud wall.

        • 6.

          Corrosion: No significant corrosion when in contact with steel under 85 percent relative humidity and 118 degrees F.

        • 7.

          Bacterial or Fungal Growth: No growth; no material deterioration.

        • 8.

          Flame Spread and Smoke Developed Rating: ASTM E84; <201<400.

        • 9.

          Fuel Contribution: ASTM E84; O.

        • 10.

          Oxygen Index: ASTM 02863; average value 23.1 percent.

PART 3 EXECUTION

    • 3.1

      EXAMINATION

      • A.

        Do not begin installation until substrates have been properly prepared.

      • B.

        Verify that substrate and cavities are free of any foreign material that will impede

application.

  • C.

    Verify that other work on and within spaces to be insulated is complete prior to application.

  • D.

    If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.

    • 3.2

      PREPARATION

      • A.

        Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.

B.

Remove foreign materials, dirt, grease, oil, paint, laitance, efflorescence, and other substances that will affect application.

    • C.

      Mask and protect adjacent surfaces from overspray or damage.

      • 3.3

        APPLICATION

        • A.

          Apply insulation in accordance with manufacturer's written application instructions.

Apply insulation to a uniform density without voids.

B.

Apply to minimum cured thickness as indicated on the Drawings or as scheduled at the end of this Section.

  • C.

    Apply to minimum cured thickness as scheduled on Drawings.

  • D.

    Apply insulation to fill voids around doors and windows. Apply insulation to fill voids

around accessible service and equipment penetrations.

E.

Apply insulation to seal voids at truss ends to prevent wind scouring of ceiling

07210-3

Document info
Document views1552
Page views1552
Page last viewedMon Jan 23 02:56:28 UTC 2017
Pages324
Paragraphs11037
Words86316

Comments