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RADIATION SHIELDING LEAD LINED PLYWOOD Many types of plywood are available upon request. We can readily offer 5/8” and 3/4 ” thick fire treated plywood meeting or exceeding the following specifications: ASTM D5516ASTM D5564 ASTM E-84 We also offer CDX, Pyro-Guard, HI- ABUSE® & HI-IMPACT® FIRE-SHIELD WALLBOARD, best used with our lead angles.
Lead lined plywood is typically recommended with heavier lead shielding requirements, usually when the lead shielding exceeds 1/8” thick. Lead lined plywood at these thicknesses becomes very heavy to handle in full sheet form (4’ x 8’). We recommend having us cut the lead lined plywood into widths that equal your on-center stud dimensions (e.g. 12” or 16”). This will make the lead lined plywood much more manageable for the installer. Example:1 sheet of 3/4 ” x 4’ x 8’ plywood with 1/4 ” lead lining to 7’ weighs approx 505 lbs. 1 sheet of 3/4 ” x 16” x 8’ plywood with 1/4 ” lead lining to 7’ weighs approx 168 lbs. 
For shielding requirements that exceed 3/8” thick lead, but are under 3/4” thick, we recommend using 3/8” lead lined plywood sandwiched with the additional lead laminated to a separate sheet of plywood. The detail below illustrates how we achieve a 5/8" thick lead shielding requirement using 3/8" lead lined plywood and 1/4" lead lined plywood. 
Just like lead lined drywall, you must account for the shielding of all penetrations, seams and cut outs in the lead lined plywood. If the lead lined plywood is cut to the on-center stud dimensions, lead angles of the same lead thickness and height will shield all the joints and fastener penetrations. The cut outs (receptacles, light switches, etc…) will need to have shielding behind them as well to ensure total protection. Radiation Protection Products, Inc. P. O. Box 862 Wayzata, MN 55391 Toll-Free: (800) 328-3361 / (888) RING RPP Fax: (952) 476-8445 E-mail: bcohen@rppinc.com Web site: http://www.radiationproducts.com |