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New Products Coming to the Website soon!
  • Roof Vent Grease Trap
  • Roof Hatch and Smoke Vents
  • Skylight Safety Protection
    (for acrylic domes and corrugated fiberglass skylights)
  • Safety Edge Rail Guard
  • Temporary Edge Protection
    (for all types of constuction projects)
  • Ladder Safety Products
  • Walkway and Equipment Platforms
  • Zone 4 Pipe Supports
    (equipment platforms sismic attachments)
For Tech Support, Custom Projects and Pricing please contact us
Toll Free: 1.866.536.5506

RoofTop Accessories
P.O. Box 1671
Tomball, Texas 77377
Ph: 281.351.9559
Fax: 281.516.9002
Email: info@keycurb.com

Copyright 2007 RoofTop Accessories
All Rights Reserved
Patents and Patents Pending
General Information:
KeyCurb Pipe Supports
Models:
Curb Supports
Strut Supports
Roller Supports
Bridge Supports
Accessories
Specifications:
3 Part Specifications
Technical Data :
Roof Deck Compression Strengths
Roof Loads
Rubber Specifications
Warranty
Installation: (pdf files)
KC9
KS8
KSA8
KSH4
KR4
KRA4
KCB24
KCBA24
AS3624
ASB3624
Pricing Information:
Keycurb


Download: Molded Recycled Rubber Specifications

Composition Recycled Rubber - 100% Binder  
Curb Supports Thickness, Weight 4", 8.0 lbs./1f.  
Color Black  
Tensile Strength ASTM D412-92 350 psi
Hardness ASTM D2240-91 53 Shore A
Flammability Meets Federal Flammability Doc FF 1-70 CPSC  
Flame Spread (UL 94 Standard, Horizontal Burning test for Classifying Material 94 HB) 0.495”/Min on ¾” thick mat
Dimensional Stability +0.242% at two hours @ 60?C-0.092% at 48 hours @ 20?C & 65% Rel.Humidity  
Ultimate Elongation ASTM D412-87 152%
Critical Radiant Flux ASTM E648-94a 0.11 watts/sq.cm.
Electrical Resistance ASTM D991 1.6 x 10 9 megohms average
5.6 x 10 8 megohms average
Electrostatic Propensity AATCC Teat Method 134-1991 Neg 0.9 KV Maximum Voltage
Thermal Resistance R-Value 0.36 per ½”
Thermal Resistivity   .72 (all thicknesses)
Thermal Conductance   2.78 per ½” – 1.78 per ¾”
Thermal Conductivity K-Value 1.39 (all thicknesses)
Tear Resistance (ppi) ASTM D624-91 122 lbs./in.
Coefficient of Friction ASTM D1894 .096
Density KG/m3 ASTM C177 1039 Relatively Dense
Oil/Gasoline Submersion No Effect
Salt Exposure No Effect
UV Aging ASTM G23-88 No Cracks/Deterioration
Compression and Recovery ASTM D575 Immediate 98.1%
After 24 hours 99.2%
After 48 hours 99.4%
After 72 hours 99.7%
After 96 hours 99.7%
Accelerated Weathering Carbon Arch Weather-ometer Fed-Std-191 Method 5804 expect with filters removed. Tensile, psi
Unexposed 499
Full Exposure 344
Elongation, %
145
70