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    Home directory Chicago Flameproof and Wood Specialties Corp.
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    Chicago Flameproof and Wood Specialties Corp.

    Building Products Listing Program

    • Chicago Flameproof and Wood Specialties Corp.
    • Fire Retardant Treated Wood Products
    • 1200 South Lake Street, Montgomery, IL
    • www.chicagoflameproof.com
    • B1093-1
    • B1093-1
    • July 12, 2016
    • March 6, 2020
    • N/A
    • ASTM E84 Standard Test Method for Surface Burning Characteristics of Building Materials”, extended to 30 minutes duration.
      ASTM E2768 Standard Test Method for Extended Duration Surface Burning Characteristics of Building Materials – 30 min Tunnel Test
      ASTM D5516 Standard Test Method for Evaluating the Flexural Properties of Fire-Retardant Treated Softwood Plywood Exposed to Elevated Temperatures
      ASTM D6305 Standard Practice for Calculating Bending Strength Design Adjustment Factors for Fire-Retardant-Treated Plywood for Roof Sheathing
      ASTM D5664 Standard Test Method for Evaluating the Effects of Fire-Retardant Treatments and Elevated Temperatures on Strength Properties of Fire-Retardant Treated Lumber
      ASTM D6381 Standard Practice for Calculating Design Value Treatment Adjustment Factors for Fire-Retardant-Treated Lumber
      ASTM D3201 Standard Test Method for Hygroscopic Properties of Fire-Retardant Wood and Wood-Base Products
      ASTM E119 Standard Test Methods for Fire Tests of Building Construction and Materials
      CAN/ULC S101 Standard Methods of Fire Endurance Tests of Building Construction and Materials.

      Species: Douglas-fir (DF), Spruce-Pine-Fir, Southern Yellow Pine (SYP), Other Species Lumber
      SYP, DF and Other Softwood Plywood

    • FlameTech™ Fire Retardant Treated Lumber
      FlameTech™ Fire Retardant Treated Plywood

    • Species: Douglas-fir (DF), Spruce-Pine-Fir, Southern Yellow Pine (SYP), Other Species Lumber
      SYP, DF and Other Softwood Plywood

       

       

    • Label(s):  Example labels found in QAI certified FlameTech™ lumber and plywood fire retardant treated wood products - Please refer to the Listing Document Link at the top of the page
    • Plywood Ratings: The following outlines FlameTech™ Pressure Treated Plywood product ratings:

      Table 1: FlameTech™ Plywood Surface Burning Characteristics per ASTM E84 (Extended) / ASTM E2768

      NOMINAL DIMENSIONS SPECIES FLAME SPREAD INDEX (FSI) SMOKE DEVELOPED INDEX (SDI) FLAME FRONT*
      ½ inch – ¾ inch SYP < 25 < 450 < 10.5 feet
      ½ inch – ¾ inch DF < 25 < 450 < 10.5 feet

      *No evidence of significant progressive combustion after extended 20 minutes duration.

       

      FlameTech™ Treated Plywood Maximum Loads and Spans determined per ASTM D6305 based on testing to ASTM D5516 are outlined in Table 2:

      Table 2. FlameTech™ Plywood Maximum Loads and Spans

      PLYWOOD THICKNESS (inches) UNTREATED SPAN RATINGS (Roof / Subfloor) TREATED SHEATHING SPAN (in) MAXIMUM LIVE LOAD
      ZONE 1A ZONE 1B ZONE 2
      (psf) (psf) (psf)
      15/32 (0.469) 32/16 24 29 42 61
      19/32 (0.594) 40/20 24 49 72 103
      32 28 41 58
      23/32 (0.719) 48/24 32 40 59 84
      48 18 26 37

       

      Lumber Ratings:  The following outlines FlameTech™ Pressure Treated Lumber product ratings:

       

      Table 3: Surface Burning Characteristics per ASTM E84 (Extended) / ASTM E2768

      NOMINAL DIMENSIONS SPECIES Flame Spread Index (FSI) Smoke Developed Index (SDI) Flame Front*
      2×4, 2×6, 2×8, 2×10, 2×12 SPF, DF, SYP < 25 < 450 < 10.5 feet.

      *No evidence of significant progressive combustion after extended 20 minutes duration.

      FlameTech™ Treated Lumber Allowable Design Properties Determined per ASTM D6841 based on testing to ASTM D5664 are outlined in Table 4:

      Table 4: FlameTech™ Fire Retardant Treated Lumber Allowable Design Properties

      Allowable Design Properties Service Temperature Service ≤ 100oF

      PROPERTY DF SPF SYP OTHER
      Extreme fiber stress in bending, Fb 1.00 0.96 0.82 0.82
      Tension parallel to grain, Ft 1.00* 0.99 0.98 0.98
      Compression parallel to grain, FCII 0.96 0.95 0.96 0.95
      Horizontal shear, Fu 1.00* 1.00 0.95 0.95
      Modulus of elasticity, E 0.99 0.93 0.87 0.87
      Compression perpendicular to grain, FCI 0.95 0.95 0.95 0.95
      Fastener Connections 0.90 0.90 0.90 0.90

       

      Allowable Design Properties Service Temperature Service > 100oF ≤ 150oF

      Please refer to the Listing Document Link at the top of the page 

       

      ASTM E119 / CAN/ULC S101 Fire-resistance Rated Assemblies are outlined in Table 5:

      Table 5: FlameTech™ Fire Retardant Treated Lumber and Plywood Fire-Resistance Rated Assemblies per ASTM E119 / CAN/ULC S101:

      QAI DESIGN LISTING RATING DESCRIPTION
      B1093-1a 1-hour Load Bearing Fc Allowable Design Properties applied following ASD* 1-hour FlameTech™ fire retardant treated wood stud and plywood load bearing assembly.
      B1093-1b 2- hour Load Bearing Fc Allowable Design Properties applied following ASD* 2-hour FlameTech™ fire retardant treated wood stud and plywood load bearing assembly

      *Allowable stress design method determined in accordance with National Design Specification for Wood Construction. Allowable stress for FlameTech™ FRTW products are to be calucated with allowable design properties per QAI listing B1093 as detailed in tables above.

       

       

       

       

      • FlameTech™ lumber products found in Table 6 were found to have a less than 28% moisture content when tested in accordance with ASTM D3201 at a 92 percent-relative humidity.
        Final acceptance of the product in the intended application is to be determined by the authority having jurisdiction.
        These results do not apply to engineered wood products.
        FlameTech™ Pressure Treated Lumber and Plywood products are not for use in conditions exposing the product to weathering.

      The materials, products or systems listed in this directory have been qualified to bear the QAI Listing Mark under the conditions stated with each Listing. Only those products bearing the QAI Listing Mark are considered to be listed by QAI.

      No warrantee is expressed or implied, and no guarantee is provided that any jurisdictional authority will accept the Listing found herein. The appropriate authorities should be contacted regarding the acceptability of any given Listing.

      Visit the QAI Online Listing Directory located at www.qai.org for the most up to date version of this Listing and to validate that this QAI Listing is active. Questions regarding this listing may be directed to info@qai.org. Please include the listing number in the request.

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