Radiation Shielding, Bullet Resistant Products, Fire Rated Products (423) 449-9729
We offer lead backed drywall and plywood in over 17 different lead thicknesses.
For heavy lead requirements we use 1/2" and 3/4" thick fire retardant plywood and laminate the lead to the back side (stud side).
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Since this material is very common for medical safety, our lead lined drywall meets ASTM C 1396 requirements and the pure sheet lead that we use to line our sheetrock meets Federal Specification QQ-L-201 F, Grade C, and ASTM B749-03, type L51121, which is factory laminated under high pressure to the backside of the drywall.
We provide high-quality drywall with a lead lining that has been laminated onto the sheetrock. Although lead is a heavy metal, it is safe to use as prevention of radiation, x-rays and gamma rays; since it remains in solid lead form the entire time there is no risk of the lead becoming airborne.
Lead backed drywall (also called lead backed sheetrock) is gypsum wall board with lead laminated to the backside that faces the studs. It is required in almost every radiation imaging room since the lead lining provides protection from x-rays and gamma-rays.
The most common rooms for lead backed drywall to be installed are C-Arm Radiography, General X-Ray rooms, P.E.T and CT Scan rooms, and labs with radioactive materials or equipment.
There can be huge ramifications from radiation exposure to your body. It can also cause birth defects in unborn children, and serious health defects if the x-ray technician is not properly protected. Lead backed drywall is the most effective method of protection against all of these radioactive ramifications for improper safety precautions.
Lead stops radioactive particles from passing through the wall since lead has an incredibly high molecular density.
Adhering sheets of pure lead to the back of the sheetrock/drywall ensures that the lead surrounds the room and prevent leaks of any kind.
Building the walls out of lead backed drywall can provide a permanent shield from radiation since it is involved in the structure of the room, not just a partition or a temporary shield. This all-around protection is incredibly important for employees or technicians in labs or rooms with constant exposure or frequent exposure to radiation and radioactive materials.
Essentially, lead backed drywall provides:
Our Custom Lead Backed Drywall Services and Products
We create custom products and work around our customer’s needs, so each order is unique to the client. The time to fill and produce orders is typically two days.
Our products include lead lining on ½ inch non-rated sheetrock or ⅝ inch fire-rated sheetrock gypsum wallboard. We also offer lead backed plywood with ½” or ¾” fire retardant plywood
The standard size of the lead lined drywall is 4 foot by 7 foot lead on 8 foot board. We can also do up to 12 foot board and full height lead if the project requirements call for that.
We include one 2-inch vertical batten strip per sheet for joints and 50 lead discs per sheet to be placed over the tops of the screw heads for maximum protection. Optional lead corner protectors are also available.
We offer 17 different lead thicknesses for the lead backing of the drywall. These thicknesses range from 1/64 of an inch (1#) to ¼ of an inch (16#). We also offer the fabrication of lead-lined plywood for heavier thicknesses of lead backing, ranging from ⅛ of an inch (8#) to 2 inches (120#).
We also offer additional options for your lead backed drywall, such as mold-resistant and abuse-resistant wallboards.
Your Radiation Shielding Report
Some several rules and regulations must be followed when going about installing or applying lead backed drywall as radiation protection to your building.
The radiation shielding must be designed by an expert in the industry. These experts could be radiation physicists, county health officers, or medical health physicists who are well educated in radiation protection and is competent enough to design radiation protection for radioactive medical imaging.
The person who designs the structure of the protection in the walls must be certified by the American Board of Radiology, American Board of Health Physics, or the Canadian College of Physics and Medicine.
It is required by federal law to have a shielding report produced licensed radiation physicist, because without this report you can have radiation leaking into the rest of your building and have dangerous repercussions physically and financially.
You must make sure that your expert is highly engaged in the early stages of the design process to ensure that your design fits all shielding requirements for your imaging equipment and your location.
The shielding regulations and requirements for each location will be different, and a radiation physicist will make sure that your radiation imaging room is contained without leaks.
The expert will be able to help identify the proper choice of radiation facilities and building construction to maximize the safety precautions of the spaces being protected.
Whoever you choose as your expert should understand the laws and have all the pertinent information about exposed radiation, proposed radiation equipment, and how it will be used in the building, the type of building, and the surrounding building occupancies or spaces.
Requirements for Lead Backed Drywall
The lead lining on the drywall must consist of a whole monolithic piece of lead that is unpierced prior to installation, otherwise, there can be radiation leaking into the rest of the building.
If your requirements for the radiation application exceed ⅛ of an inch and are unable to support the thickness of the lead, you may want to use lead backed plywood to maintain a rigid structure.
The installation must be executed properly, there to be no leakage of radiation. The seams of the walls should be installed with the joints of the walls running vertically from ceiling to floor and every joint must have a lead batten strip overlapping the lead lining on the drywall. Lead backing at every penetration is required; including all electrical outlets, pipes, ventilation, etc. If you follow these standards correctly, you will pass inspection of your lead backed drywall room.
Industry Standard Tips for Installing Lead Backed Drywall
Ensure that when you fasten your lead backed drywall panels, your screw schedule should be 8 inches on the edges of all the drywall and a 12 inches on the intermediate studs with standard drywall screws.
You should apply the 2 inch wide batten strips of the sheet lead of the same thickness as the lead backing on the drywall to the joint studs. This can be done using standard construction adhesive.
The lead sheet strips will assure that you meet standards for a 1/2-inch lead overlap on all seams.
Ensure that all the fasteners and screws are covered with the lead discs. ⅜-inch diameter discs are the recommended standard and an equal thickness as the lead backing on the drywall.
When installing the screws (standard drywall screws will be fine) make sure that the screws dimple into the drywall slightly. This, with the lead discs secured on top of the heads of the screws, will help eliminate any radiation leakage at any point of fastening or conjunction.
When installing lead backed drywall, you will also need to use lead backing on the areas around any switches, levers, or fasteners in the walls. These areas are a common reason for radiation leaking into the surrounding rooms.
To conclude, please ensure that you have the proper precautions and experts working on your team when trying to protect your building and physical safety.
This is a vital piece of protecting your building, and we hope that we can support you in your journey!