Ray-Bar Engineering Corporation -Lead Backed Plywood

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  • 1/2" or 3/4" thick Fire Retardant ACX
  • Only 1 to 3 business day fabrication
  • Available in 17 standard Lead thicknesses
  • Lead from 7'0" to 8'0" high

Category: fire resistant panels | fire resistant wood panels | plywood...

MasterFormat: Rough Carpentry | Roofing and Siding Panels | Wood Wall Panels...



Ray-Bar Engineering Corporation
697 W. Foothill Blvd.
P.O. Box 415
Azusa, CA 91702 -0415
Tel: (800) 444-9729
Fax: (800) 333-9729

sales@raybar.com

https://www.raybar.com/

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Overview


Lead Backed Plywood

Ray-Bar Lead Backed 1/2" or 3/4" Fire Resistant Treated Plywood utilized for additional structural and sheer strength in meeting heavier lead shielding requirements. Available in 15 standard protective lead thickness levels for X-Ray Shielded Wall System Assemblies in Medical Diagnostic Imaging Room Applications,Radiation Oncology Cancer Therapy Radiation Rooms and Industrial X-Ray Gamma Radiation Shielding Applications meeting all applicable requirements of the National Council on Radiation Protection and Measurements NCRP report # 49 "Structural Shielding Design and Evaluation for Medical use of X-Rays and Gamma Rays of Energies up to 10MeV" and NCRP report # 147 "Structural Shielding Design for Medical X-Ray Imaging Facilities".

Lead Backed Plywood
  • 1/2" or 3/4" thick Fire Retardant ACX
  • Only 1 to 3 business day fabrication
  • Available in 17 standard Lead thicknesses
  • Lead from 7'0" to 8'0" high
  • Includes vertical batten strips
  • Also available prefinished with durable custom color laminate faces
  • Ray-Bar Lead Backed Plywood is available on 1/2”, 5/8”, and 3/4" ACX Fire-Retardant. All Ray-Bar Lead Backed Plywood uses pure lead sheet meeting Federal Specification QQ-L-201 F, Grade C and ASTM B749-03, Type L51121 factory laminated under pressure to the back side of the plywood panel. It is custom manufactured to customer specifications, available as 12”, 16”, 24” and 48” wide, and is typically available in one day.
  • Utilized for structural support and shear in heavy lead shielding requirement applications and flooring shielding.
  • Plywood is UL tested for Flame Spread rating for 30 minutes per ASTM E-84 flame spread test
  • ICC-ESR-1791 has been issued by the International Code Council, confirming compliance with National, Uniform and Standard building codes.
  • ICC-ESR-1791 contains conditions of use and strength adjustments for sheathing, framing and other applications.
  • Meets the flame spread requirement of all building codes which is 25 or less, as determined by Underwriters Laboratories in the extended 30 minute duration of ASTM E-84, "Standard Test Method for Surface Burning Characteristics of Building Materials."
  • Plywood bears the Underwriters Laboratories Classification mark identifying it as being produced under its Classification and Follow Up Services.

Ray-Bar utilizes only Fire-Retardant plywood in all of our lead backed plywood products. All of our plywood is UL tested for Flame Spread rating for 30 minutes per ASTM E-84 flame spread test. Our lead backed plywood products are typically utilized for structural support and shear in heavy lead shielding requirement applications and flooring shielding. Ray-Bar Lead Backed Fire Retardant Plywood is available in 17 standard lead shielding thickness values.

ICC-ESR-1791 has been issued by the International Code Council, confirming compliance with National, Uniform and Standard building codes.

ICC-ESR-1791 contains conditions of use and strength adjustments for sheathing, framing and other applications.

This plywood meets the flame spread requirement of all building codes which is 25 or less, as determined by Underwriters Laboratories in the extended 30 minute duration of ASTM E-84, "Standard Test Method for Surface Burning Characteristics of Building Materials." Each piece of treated wood bears the Underwriters Laboratories Classification mark identifying it as being produced under its Classification and Follow Up Services.

The treated plywood we utilize in our products is pressure impregnated deep into the wood to provide permanent protection, unlike surface applied coatings, which only provide superficial protection.

When pressure impregnated treated plywood wood is exposed to fire, non-combustible gas and water vapor are produced, and a layer of protective char forms, which hinders combustion and insulates the wood against further damage.

Interior fire-retardant pressure impregnated treated plywood has a low rate of fuel contribution and heat release, and it maintains structural integrity longer than other building materials such as steel.

Please note this is a much higher performance requirement than "Fire Retardant" surface coated products that are only tested for 10 minutes and do not meet code requirements for structural uses.


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