Custom Solutions for Every Environment

Purpose-Built Protection for Any Application

No two environments face the same risks. Whether safeguarding industrial operations, reinforcing existing structures or protecting homes and communities from extreme weather, FORTRESS delivers custom-engineered solutions designed to withstand the harshest conditions.

From blast, fire, toxic and fragment protection to explosive, ballistic, and storm shelters, our expertise ensures the right level of defense for any application.

Retrofitting and Upgrading Existing Buildings

FORTRESS specializes in strengthening and modifying existing structures to enhance safety, providing protection against the full range of hazardous events.

Before and after FORTRESS building upgrades

Building Upgrades and Structural Enhancements

We reinforce existing buildings with structural improvements to increase blast, fire, toxic and impact resistance. Often, strengthening aspects of a building can increase its structural capacity to a point where buildings can continue to be occupied in an industrial setting. Whether this involves adding mass to walls or strengthening a roofing system, we have the ability to provide both the design and construction services.

building update toxic safe haven

Toxic Refuge and Shelter-In-Place Design

We reinforce existing buildings with structural improvements to increase blast, fire, toxic and impact resistance. Often, strengthening aspects of a building can increase its structural capacity to a point where buildings can continue to be occupied in an industrial setting. Whether this involves adding mass to walls or strengthening a roofing system, we have the ability to provide both the design and construction services.

Blast resistant door assembly

Blast Door, Fire Door, and Blast Window Replacements

We equip existing structures with specialized blast-resistant doors and windows engineered to withstand a range of pressures as well as other hazards such as fires and impacts while maintaining structural integrity.

Before and after FORTRESS building upgrades

Building Upgrades and Structural Enhancements

We reinforce existing buildings with structural improvements to increase blast, fire, toxic and impact resistance. Often, strengthening aspects of a building can increase its structural capacity to a point where buildings can continue to be occupied in an industrial setting. Whether this involves adding mass to walls or strengthening a roofing system, we have the ability to provide both the design and construction services.

building update toxic safe haven

Toxic Refuge and Shelter-In-Place Design

We reinforce existing buildings with structural improvements to increase blast, fire, toxic and impact resistance. Often, strengthening aspects of a building can increase its structural capacity to a point where buildings can continue to be occupied in an industrial setting. Whether this involves adding mass to walls or strengthening a roofing system, we have the ability to provide both the design and construction services.

Blast resistant door assembly

Blast Door, Fire Door, and Blast Window Replacements

We equip existing structures with specialized blast-resistant doors and windows engineered to withstand a range of pressures as well as other hazards such as fires and impacts while maintaining structural integrity.

Protective Barriers and Enclosures

FORTRESS engineers high-performance protective barriers that mitigate the impact of explosions, fires and high-velocity debris impacts.

Fire Walls

FORTRESS fire walls are engineered to contain and mitigate smaller thermal hazards, reducing heat transfer and providing critical time for evacuation. While fire walls enhance safety, they are not typically suitable for shelter-in-place applications. Proper fire wall design should be based on a computational fluid dynamics (CFD) analysis to account for fire behavior and blast loading, providing optimal protection in high-risk environments. Built with reinforced materials, FORTRESS fire walls are designed to withstand prolonged exposure to extreme temperatures without structural failure.

Blast Walls

These walls are meticulously designed to absorb and redirect blast energy, effectively mitigating the impact of the blast wave. Proper design is essential—improperly designed walls can allow blast waves to “roll over” the top, applying dangerous loads to the protected structure. FORTRESS utilizes advanced engineering methods, including computational blast modeling and material analysis, to ensure optimal height, thickness and material selection for each site-specific application. Built with reinforced concrete, our blast walls provide durable, reliable protection tailored to specific threat levels and operational requirements.

Protective Enclosure FORTRESS

Protective Enclosures

FORTRESS enclosures are designed to contain high-energy fragments and mitigate hazards originating from within a structure, such as high pressure testing, battery abuse testing, flywheel containment systems, and many more. Constructed with reinforced concrete walls, base and roof, these enclosures are engineered to withstand the hazards generated by the equipment within the structure.

Steel rebar reinforcement enhances structural integrity, allowing the enclosure to absorb and dissipate kinetic energy from ejected debris. For additional safety, linings or barriers can be installed on interior walls to reduce the impact of secondary projectiles. Ventilation and access points, if required, can be designed with protective grates or blast-resistant doors to maintain containment integrity. These enclosures ensure that personnel and critical equipment outside the impact zone remain protected—even in worst-case scenarios.

Fire Walls

FORTRESS fire walls are engineered to contain and mitigate smaller thermal hazards, reducing heat transfer and providing critical time for evacuation. While fire walls enhance safety, they are not typically suitable for shelter-in-place applications. Proper fire wall design should be based on a computational fluid dynamics (CFD) analysis to account for fire behavior and blast loading, providing optimal protection in high-risk environments. Built with reinforced materials, FORTRESS fire walls are designed to withstand prolonged exposure to extreme temperatures without structural failure.

Blast Walls

These walls are meticulously designed to absorb and redirect blast energy, effectively mitigating the impact of the blast wave. Proper design is essential—improperly designed walls can allow blast waves to “roll over” the top, applying dangerous loads to the protected structure. FORTRESS utilizes advanced engineering methods, including computational blast modeling and material analysis, to ensure optimal height, thickness and material selection for each site-specific application. Built with reinforced concrete, our blast walls provide durable, reliable protection tailored to specific threat levels and operational requirements.

Protective Enclosure FORTRESS

Protective Enclosures

FORTRESS enclosures are designed to contain high-energy fragments and mitigate hazards originating from within a structure, such as high pressure testing, battery abuse testing, flywheel containment systems, and many more. Constructed with reinforced concrete walls, base and roof, these enclosures are engineered to withstand the hazards generated by the equipment within the structure.

Steel rebar reinforcement enhances structural integrity, allowing the enclosure to absorb and dissipate kinetic energy from ejected debris. For additional safety, linings or barriers can be installed on interior walls to reduce the impact of secondary projectiles. Ventilation and access points, if required, can be designed with protective grates or blast-resistant doors to maintain containment integrity. These enclosures ensure that personnel and critical equipment outside the impact zone remain protected—even in worst-case scenarios.

Safe Escape Routes and Heat Shielding

Protecting personnel with safe evacuation is essential in hazardous environments. FORTRESS integrates advanced escape route designs and high-performance heat shields to provide reliable protection during emergency egress.

Safe Escape Routes

Designing Safe Egress Routes

FORTRESS designs and constructs emergency escape pathways to ensure personnel can safely move from an unsafe location to a designated shelter or a sufficiently distanced safe location.

Our escape route designs take into account blast impacts and thermal exposure mitigation to provide the safest possible evacuation corridors.

Heat Shields by Locker Group

In collaboration with Locker Group, we implement heat shielding solutions that significantly reduce thermal hazards while maintaining ventilation and structural durability.

  • Independently tested up to 60 kW/m² for extreme heat exposure scenarios
  • Designed for excellent ventilation and visibility, maintaining safe working conditions without compromising protection
  • Engineered to withstand wind and snow loads, offering protection in extreme environmental conditions
  • Quick on-site installation and removal

Project Management - Construction Support Services

FORTRESS provides expert project management services to support projects focused on fortifying facilities against high-risk events, integrating protective solutions for maximum resilience. Understanding the nuances of protective building projects can aid in keeping projects on schedule and on budget, completed with the original design intent intact:

  • Project Management
  • Constructability and Design Reviews
  • Project Consulting
  • Estimating

Safe Escape Routes

Designing Safe Egress Routes

FORTRESS designs and constructs emergency escape pathways to ensure personnel can safely move from an unsafe location to a designated shelter or a sufficiently distanced safe location.

Our escape route designs take into account blast impacts and thermal exposure mitigation to provide the safest possible evacuation corridors.

Heat Shields by Locker Group

In collaboration with Locker Group, we implement heat shielding solutions that significantly reduce thermal hazards while maintaining ventilation and structural durability.

  • Independently tested up to 60 kW/m² for extreme heat exposure scenarios
  • Designed for excellent ventilation and visibility, maintaining safe working conditions without compromising protection
  • Engineered to withstand wind and snow loads, offering protection in extreme environmental conditions
  • Quick on-site installation and removal

Project Management - Construction Support Services

FORTRESS provides expert project management services to support projects focused on fortifying facilities against high-risk events, integrating protective solutions for maximum resilience. Understanding the nuances of protective building projects can aid in keeping projects on schedule and on budget, completed with the original design intent intact:

  • Project Management
  • Constructability and Design Reviews
  • Project Consulting
  • Estimating

Upgrading Temporary and Mobile Structures

For high-risk environments where permanent buildings are not feasible, FORTRESS upgrades mobile structures to meet strict safety requirements.

Reinforcing Modular and Trailer Units

We retrofit wood trailers and modular units with blast-resistant materials, reinforced entry points and overpressure resistance up to 2+ psi.

Cost-Effective Protection

Our mobile safety solutions provide enhanced protection

Storm Shelters and Safe Rooms

FORTRESS extends its expertise in hazard-resistant design to residential and community storm shelters, providing life-saving protection during extreme weather events.

Pre-Engineered Concrete Shelters

We manufacture storm-resistant concrete shelters designed to withstand tornadoes, hurricanes, wildfires and other severe weather conditions.

Compliance with Industry Standards 

Our structures meet or exceed FEMA and ICC standards for wind and impact resistance, providing maximum reliability in high-risk areas.

Flexible Installation Options 

We offer customizable storm shelter configurations, allowing for easy installation and tailored sizing to accommodate various safety needs.

Protective Building Selection Guide