Blast-Resistant Products

The Widest Range of Blast- and Pressure-Resistant Door and Window Systems in the World.

High Range Blast Doors and Windows

Due to the unique nature of some projects, a pre-engineered model is not always the best selection. Often, a custom design is required. That is where we come in. Our engineering and sales staff can help custom design a product to meet your most demanding applications.

Pre-Engineered Blast Door Models

Series BMD (Blast Mitigation Door) is a series of doors designed and tested to meet the requirements of Unified Facilities Criteria (UFC) 4-010-01, "DOD Minimum Anti-Terrorism Standards for Buildings." This criteria requires all exterior doors to be designed in accordance with ASTM F2927-12, "Standard Test method for Door Systems Subject to Air blast Loadings"
Click here to see more information.

Series VLRB (Very Low Range Blast), LRB (Low Range Blast) and MRB (Mid Range Blast) are a family of pre-engineered blast- and fire-resistant doors and frames. The doors are used for hazardous material storage, automotive, chemical, petrochemical, and pharmaceutical facilities.

         

VLRB and LRB Doors
Up to 3 psi 

         

MRB Doors
Up to 20 psi

Click Here For More

Click Here For More

 

UL Fire Ratings


Overly has successfully tested many of its products to the latest UL fire test standards, including UL 10B (neutral pressure), UL10C/UBC 7-2 (positive pressure).

We provide all fire labeling under Underwriter's Laboratories procedures. Metal doors are available with up to 3 hour fire ratings. Tested and certified in accordance with UL 10C and UBC 7-2 for doors and UBC 7-4 for windows.
 

Configurations

We offer a full line of single and pair swinging blast-resistant doors. Vision light configurations range from peep sites to dual glazed window systems. Single and bi-parting sliding door systems are also available with either manual or power controls. Tandem assemblies, as well as double egress options are available as well.

Frame Configurations

Many of our blast-resistant products use a frame profile similar to standard hollow metal frames. Other options include split style frames, as well as tandem, four-sided, and double egress configurations. We manufacture frames to meet your exact need. Wrapping frames are sized to your wall. Slip in styles are also available. A range of mullion configurations are available. In some instances, we utilize channel iron framing members for pour-in-place wall systems.

Hardware Configurations

We typically provide a standard hardware package with our blast-resistant products. However, hardware can be supplied from a third party if the information is reviewed by our technical staff. Also, certain blast door models require modified or custom manufactured hardware. It is best to contact the factory for assistance. Factory mounting of hardware is also available. Consult your local representative for more information.

 
 



Custom Hybrid Products

Additional performance options that can be incorporated into this door include: airtight, acoustical, & UL bullet resistant requirements. Depending on the individual design criteria, all features may not be available. Consult the factory with your project specific needs to determine availability. To assist in determining hardware compatibility with Overly Blast-Resistant Doors, please contact our sales department.
 

Sizes

Personnel doors can be manufactured up to 4'-0" x 8'-0" singles; 8'-0" x 8'-0" pairs. However, there is really no limit. We have standardized a number of oversized units or can custom design to your exact specification. Small sizes for hatches and access panels are also available, as well as blow-out panels.
 

Finishes

Metal products receive a coat of rust inhibitive primer. Zinc-rich and other select primers are available. Finish painting may also be available. Consult your local representative for more information.