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
- B1093-1
- B1093-1
- July 12, 2016
- November 2, 2018
- 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 -
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 Plywoods
- Please see listing document link at the top of the page
-
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 (FSI) SMOKE DEVELOPED INDEX (SDI) FLAME FRONT* 1/2″ – 3/4″ SYP < 25 < 50 < 10.5 feet. 1/2″ – 3/4″ DF < 25 < 50 < 10.5 feet. *No evidence of significant progressive combustion after extended 20 minute duration.
FlameTech™ Treated Plywood Maximum Loads and Spans determined per ASTM D6305 based on testing to ASTM D5516 are outlined in Table 4:
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 minute duration.
FlameTech™ Treated Lumber Allowable Design Properties Determined per ASTM D6841 based on testing to ASTM D5664 are outlined in Table 6:
Table 4: FlameTech™ 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
Fastener Connections
0.95
0.90
0.95
0.90
0.95
0.90
0.95
0.90
Allowable Design Properties Service Temperature Service > 100oF ≤ 150oF
PROPERTY DF SPF SYP OTHER IA 1B 2 1A 1B 2 1A 1B 2 1A 1B 2 Extreme fiber stress in bending, Fb
1.00 1.00 1.00 0.91 0.93 0.95 0.81 0.81 0.81 0.81 0.81 0.81 Tension parallel to grain, Ft 0.91 0.95 0.99 0.93 0.96 0.99 0.84 0.90 0.96 0.84 0.90 0.96 Compression parallel to grain, FCII
0.87 0.91 0.95 0.88 0.91 0.94 0.82 0.88 0.94 0.82 0.88 0.94 Horizontal shear, Fu 0.91 0.95 0.99 0.93 0.96 0.99 0.81 0.87 0.93 0.81 0.87 0.93 Modulus of elasticity, E
0.99 0.99 0.99 0.96 0.96 0.96 0.87 0.87 0.87 0.87 0.87 0.87 Compression perpendicular to grain, FCI 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 Fastener Connections 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 -
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.
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