Lead Lined Hollow Metal Door Spec 08 34 49

Click here to Download this as a .DOCX file

SECTION 08 34 49

LEAD-LINED HOLLOW METAL DOORS

GUIDE SPECIFICATION - 2026

NOTE TO SPECIFIER: This section is written in CSI three-part format for lead-lined hollow metal doors used in radiation shielding assemblies. Edit bracketed requirements to coordinate with Drawings, door schedule, hardware schedule, frame requirements, fire ratings, glazing requirements, and the project radiation shielding report prepared by the qualified health or medical physicist.

This section is based on products of Lead Glass Pro, located at:

1968 South Coast Highway

Laguna Beach, CA 92651-3681

Toll Free: (800) 506-9972

Email: sales@leadglasspro.com

Web: https://www.leadglasspro.com

Lead Glass Pro manufactures radiation shielding products including lead-lined hollow metal doors and frames, lead-lined wood doors, leaded X-ray glass, lead-lined view window frames, and related radiation shielding accessories.

Part 1 - General

Section Includes

Lead-lined hollow metal doors for radiation shielding openings.

Lead lining, steel face sheets, channels, internal construction, hardware reinforcements, primers, and accessories required for complete lead-lined hollow metal doors.

Coordination with radiation protective frames, hardware preparations, fire labels, and vision lite glazing where indicated.

Related Sections

Section 08 11 13 - Hollow Metal Doors and Frames.

Section 08 34 40 - Radiation Protection Doors.

Section 08 34 50 - Radiation Protection Metal Doors and Frames.

Section 08 71 00 - Door Hardware.

Section 08 80 00 - Glazing.

Section 08 88 60 - X-Ray Lead Glass.

Section 13 49 00 - Radiation Protection.

References

American National Standards Institute (ANSI):

ANSI Z97.1 - Safety Glazing Materials Used in Buildings.

ASTM International (ASTM):

ASTM A1008/A1008M - Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake Hardenable.

AWS - Structural Welding Code and applicable welding standards.

Consumer Product Safety Commission (CPSC):

16 CFR Part 1201, Category II - Safety Standard for Architectural Glazing Materials.

Federal Specifications:

QQ-L-201F, Grade C - Lead Sheet, 99.9 percent pure.

Hollow Metal Manufacturers Association (HMMA):

HMMA 840 - Installation and Storage of Hollow Metal Doors.

HMMA 861 - Commercial Hollow Metal Doors and Frames.

National Council on Radiation Protection and Measurements (NCRP):

NCRP Report No. 49 - Structural Shielding Design and Evaluation for Medical Use of X-Rays and Gamma Rays of Energies up to 10 MeV.

NCRP Report No. 147 - Structural Shielding Design for Medical X-Ray Imaging Facilities.

Steel Door Institute (SDI):

SDI-100 - Recommended Specifications for Standard Steel Doors and Frames.

Comply with local radiation safety regulations and requirements of authorities having jurisdiction where more stringent than references listed above.

Definitions

Lead Equivalence: Thickness of lead that provides the required radiation attenuation under specified conditions.

Radiation Shielding Report: Project-specific shielding report prepared by a qualified health or medical physicist, indicating required lead thickness and shielding configuration for doors, frames, glazing, hardware preparations, and adjacent assemblies.

Performance Requirements

Provide lead-lined hollow metal doors with lead thickness not less than indicated on Drawings and required by the project radiation shielding report.

Provide lead lining in doors with lead thickness equal to or greater than the lead shielding in the partition or wall assembly in which each door occurs, unless otherwise indicated.

Maintain continuity of radiation protection at door edges, hardware cutouts, vision lite openings, glazing stops, frame interfaces, and adjacent lead-lined assemblies.

Provide doors 1-3/4 inches (45 mm) thick, rigid, neat in appearance, free from warpage, and with true and straight edge bends.

Fire Ratings: Provide non-rated doors or UL fire-rated doors with A, B, or C labels up to 3 hours only where indicated on Door Schedule.

Submittals

Product Data: Submit manufacturer's printed technical data for lead-lined hollow metal doors, steel face sheets, lead lining, internal construction, reinforcements, primer, handling instructions, and installation recommendations.

Shop Drawings: Indicate door sizes, thicknesses, handing, steel gages, lead thickness, lead location, core construction, edge construction, hardware reinforcements, vision lite openings, glazing stops, fire labels, and frame coordination.

Radiation Shielding Coordination: Submit documentation verifying that proposed door lead thickness and details comply with the project radiation shielding report.

Door Schedule Coordination: Coordinate submittals with door schedule, frame schedule, hardware schedule, fire-rating requirements, and glazing requirements.

Certificates of Compliance: Submit manufacturer's certificate stating that lead-lined hollow metal doors furnished for the Project comply with this Section, the Drawings, and the project radiation shielding report.

Quality Assurance

Manufacturer Qualifications: Manufacturer regularly engaged in production of lead-lined hollow metal doors and radiation shielding materials of type specified.

Installer Qualifications: Installer experienced in installation of hollow metal doors, radiation protective doors, and related hardware and frame coordination.

Single Source Responsibility: Provide lead-lined hollow metal doors and radiation shielding accessories produced as standard products of Lead Glass Pro.

Regulatory Requirements: Comply with applicable building codes, radiation safety standards, fire-label requirements, and requirements of authorities having jurisdiction.

Coordination: Coordinate door thickness, door weight, hinges, closers, hardware reinforcements, frame construction, wall shielding, fire ratings, and glazing before fabrication.

Delivery, Storage, and Handling

Deliver doors in manufacturer's original protective packaging with labels intact and legible.

Handle doors carefully to prevent warpage, denting, corrosion, finish damage, and deformation.

Store doors flat, indoors, and protected from moisture, direct sunlight, temperature extremes, and construction traffic.

Keep doors flat until ready for installation. Do not store in the sun or in areas where moisture is present.

Project Conditions

Field Measurements: Verify actual frame openings and conditions before fabrication where field dimensions are required.

Environmental Conditions: Install doors only after building is enclosed and openings are ready to receive doors and hardware.

Part 2 - Products

Manufacturers

Approved Manufacturer: Lead Glass Pro, 1968 South Coast Highway, Laguna Beach, CA 92651-3681; Toll Free: (800) 506-9972; Email: sales@leadglasspro.com; Web: https://www.leadglasspro.com.

Substitutions: Not permitted unless approved in writing by Architect, Owner, and project radiation physicist of record, and unless proposed materials demonstrate equal radiation shielding performance, hollow metal construction quality, frame and hardware compatibility, safety glazing compliance, and fire-rating compliance where required.

Lead-Lined Hollow Metal Doors

Basis of Design: Lead-Lined Hollow Metal Doors, as manufactured and supplied by Lead Glass Pro.

Construction: Commercial-quality flush lead-lined hollow metal doors with no visible seams on either face.

Door Thickness: 1-3/4 inches (45 mm), unless otherwise indicated.

Face Sheets: Commercial-quality steel, 18 gage unless otherwise indicated; 16 gage or 14 gage face sheets where scheduled.

Edges: 16 gage steel channels.

Internal Construction: Single layer of unpierced sheet lead bonded within the door assembly; provide internal construction as required by manufacturer to produce a strong, rigid, level door free from warpage.

Lead Sheet: 99.9 percent pure sheet lead complying with Federal Specification QQ-L-201F, Grade C.

Lead Thickness: Provide thickness indicated on Drawings and required by the project radiation shielding report; thickness must be equal to or greater than lead shielding in surrounding partition unless otherwise indicated.

Lead Continuity: Apply sheet lead continuously from top to bottom and edge to edge.

Finish: Manufacturer's standard pretreatment and rust-inhibitive primer.

Optional Facing: Factory-applied Wilsonart plastic laminate on door faces where indicated.

Compliance: Comply with HMMA 861 and SDI-100, Grade II, Heavy Duty, Model 3, seamless hollow metal construction.

Vision Lites and Glazing

Provide vision lite openings only where indicated on Door Schedule and approved by the project radiation physicist of record.

Vision Lites: Lead-lined vision lite assemblies with radiation shielding X-ray safety glass labeled as impact resistant.

Safety Glazing: X-ray safety glass must comply with ANSI Z97.1 and CPSC 16 CFR Part 1201, Category II.

Fire-Rated Glazing: Where fire-rated doors require vision lites, provide additional clear ceramic fire-rated glazing or other listed fire-rated glazing assembly as required for the door rating.

Maintain radiation shielding continuity at lite kits, glazing stops, and cut edges.

Hardware Reinforcements

Factory-mortise and reinforce doors for field application of hinges, locksets, closers, and other scheduled hardware in accordance with approved hardware schedule and templates.

Hinge Reinforcement: 7 gage minimum.

Lock Reinforcement: 12 gage minimum.

Closer Reinforcement: 14 gage minimum.

Other Surface-Mounted Hardware Reinforcement: 16 gage minimum.

Lock Support: 20 gage minimum.

Coordinate hardware locations, reinforcement, hinge quantity, hinge size, closers, and operators with increased door weight resulting from lead lining.

Fabrication

Reinforce vertical edges with 16 gage minimum continuous steel channels extending full height of door.

Reinforce top and bottom edges with 16 gage channels spot welded to face sheets.

Fabricate metalwork to required profiles with exposed edges straight and sharp or radiused as required.

Weld in accordance with AWS standards. Grind exposed welds smooth.

Clean and phosphatize doors to inhibit corrosion, then apply one coat of manufacturer's standard primer.

Fabricate doors square, flat, and free from defects that impair appearance, operation, finish, fire rating, or radiation shielding performance.

Part 3 - Execution

Examination

Examine frames, openings, supports, hardware preparations, and adjacent construction for conditions affecting installation, operation, fire rating, or radiation shielding continuity.

Verify frames are accurately set, plumb, level, square, rigid, and properly lead-lined before installing lead-lined hollow metal doors.

Do not proceed with installation until unsatisfactory conditions have been corrected.

Installation

Install lead-lined hollow metal doors in accordance with manufacturer's written instructions, approved shop drawings, Door Schedule, hardware requirements, HMMA 840, and the project radiation shielding report.

Install doors level and plumb, aligned with frames, and with uniform clearances at heads, jambs, and meeting edges.

Coordinate installation with radiation protective frames. Maintain radiation shielding continuity between doors, frames, walls, hardware preparations, and vision lite assemblies.

Install hinges, pivots, closers, operators, and related hardware suitable for door weight and required operation.

Protect lead-lined doors from field cuts, penetrations, or modifications not approved by manufacturer and project radiation physicist of record.

Field Quality Control

Manufacturer Certification: Upon completion of material supply, manufacturer shall furnish certificate of compliance stating that materials are in accordance with this Section and the project radiation shielding report.

Radiation Shielding Testing: When required, test radiation shielding after X-ray equipment has been installed and placed in operating condition and before occupancy and use.

Correct deficiencies in radiation shielding Work identified by inspection or testing.

Adjusting

Check and readjust operating hardware, leaving doors and frames undamaged and in proper operating condition.

Adjust doors for smooth, balanced, quiet operation without binding, scraping, or excessive clearance.

Cleaning

Remove excess materials and debris from site.

Clean exposed door surfaces in accordance with manufacturer's recommendations.

Touch up primer damage in accordance with manufacturer's recommendations.

Protection

Protect installed doors from damage by construction operations until Substantial Completion.

Limit unapproved access to radiation-protected rooms after door hardware is installed.

Replace damaged doors or components that compromise appearance, operation, fire rating, or radiation shielding continuity.

End of Section