Baumert technical doors are aimed primarily at professionals, as part of B2B projects for sensitive sites and critical infrastructure. They are designed for environments where access points must meet high requirements in terms of safety, security, containment or operational continuity.They are used in particular for nuclear power plants, defence installations, military bases, government buildings, and critical infrastructure across France and worldwide (in the United Kingdom, Finland, China, the United States, Ukraine, Slovenia, several countries in Africa and the Middle East, and others)These technical doors are used where access points must withstand specific combined constraints: fire, blast, break-in, ballistic impact, seismic loading, air, water or smoke sealing, gamma and neutron radiation shielding, or non-standard dimensions.Baumert supports operators, engineering firms, EPC contractors, civil works companies, technical buyers and maintenance providers in designing bespoke critical access solutions. Baumert does not supply doors for private individuals, residential properties or housing projects.
As early as possible, ideally from the preliminary design phase onwards, before the civil engineering constraints are fixed. On projects with stringent regulatory requirements, the technical file should be established from this preliminary phase. A manufacturer brought in late has to adapt to choices that were not made with its equipment in mind, which extends lead times and increases the cost of qualification.
When comparing technical door manufacturers for a sensitive site or critical infrastructure project, five criteria are decisive.The first criterion is qualification capability: does the manufacturer have existing references, test results or qualified data, or does it have to start from scratch for each project?The second criterion is industrial control: are design, manufacturing, assembly and inspection carried out in-house, ensuring quality, traceability and control of lead times?The third criterion concerns certifications and qualifications. Depending on the site, reference frameworks such as ISO 9001, ISO 19443, CEFRI or EDF UTO qualification may be essential prerequisites.The fourth criterion is the ability to combine multiple performances within a single door leaf: fire, seismic, sealing, anti-intrusion, blast, ballistic or radiation protection. This is often the rarest capability on complex projects.The fifth criterion is the design office's ability to engineer a bespoke solution, beyond a standard catalogue. An expert manufacturer must be able to analyse the specification, the civil engineering interfaces, and the operational, maintenance and qualification constraints, then propose a technical door that is coherent, achievable and suited to the site.
Yes. A technical door can be designed to combine multiple security, safety and sealing requirements within a single unit, depending on the site specification.For example, a door can combine fire resistance, seismic resistance, anti-intrusion, blast resistance, ballistic resistance, and air, water or smoke sealing, along with gamma and neutron radiation shielding. The most common combinations involve seismic resistance with sealing, fire with seismic resistance, anti-intrusion with blast and fire resistance, or radiation shielding with sealing.At Baumert, every door incorporates seismic resistance as standard. This multi-requirement approach calls for a dedicated study, as each performance affects the design, materials, seals, anchorages, dimensions, mass and maintenance.Baumert's design office works with clients to define a solution that is coherent, qualifiable and operable on a critical site. Each combination of performances is validated through dedicated testing, never extrapolated from tests carried out separately.
Civil engineering constraints depend directly on the door's performance requirements. A seismic-resistant door requires anchorages sized to transfer loads to the supporting structure. A door sealed against high hydrostatic pressure requires the supporting wall's resistance to be verified. A radiation protection door can weigh several tens of tonnes: the floor and handling conditions must be planned for in advance. The higher the performance and the heavier the door, the more decisive the interaction with civil engineering becomes. A manufacturer brought in early can help shape these choices.
Yes. A large-format door, including a bespoke design door, can meet fire, seismic, sealing or radiation protection requirements, provided it is specifically designed and qualified for the site environment.Baumert manufactures technical equipment ranging from under one square metre to over 100 square metres. Large dimensions do not preclude performance, but they make design and qualification more complex. A large fire-resistant door must control thermal expansion across its entire surface. A large seismic-resistant door transfers greater loads to its anchorages and to the civil structure. A large radiation protection door must maintain shielding continuity, including at the joints between leaves.For a non-standard technical door intended for a critical site, the study must therefore take into account the dimensions, masses, civil engineering interfaces, operating conditions, maintenance and expected performances. Baumert designs bespoke critical access solutions when standard dimensions are not sufficient.
The CR classification, defined by standard EN 1627, measures a door's resistance to forced entry. The higher the level, the more the door resists prolonged, structured attacks carried out with high-performance tools.A CR3 door protects against forced entry attempts using manual tools such as screwdrivers, pliers or crowbars. It is suited to technical premises, commercial buildings or access points requiring enhanced protection.A CR5 door offers a significantly higher level of protection. It is designed to resist more sustained attacks involving power tools, and is intended for critical sites: nuclear, defence, critical infrastructure or protected zones.Baumert technical doors can be designed to CR3 level, but certain solutions are engineered to reach higher levels: CR4, CR5, or even CR6 in specific cases. The appropriate level depends on the intrusion risk, the security response time and the site's requirements.
The FB classification, defined by standards EN 1522-1523, measures a door's resistance to ballistic impact. The higher the level, the more the door resists powerful weapons and ammunition.An FB3 door protects against certain handgun rounds. It is suited to access points requiring enhanced, but limited, ballistic protection.An FB7 door offers a much higher level of protection. It is designed to resist high-kinetic-energy rifle or carbine rounds, in environments exposed to more severe threats.Baumert offers access protection solutions qualifiable up to FB6 for critical sites, defence buildings and critical infrastructure. Requests for ballistic protection up to FB7 can nonetheless be assessed on a case-by-case basis, depending on the threat analysis, the specification and the technical constraints of the project.
A blast-resistant door withstands the pressure effects generated by an explosion. Dimensioning is based on a precise scenario: type of explosion, quantity of explosive material, standoff distance between the source and the door, and room geometry. These parameters are used to calculate the pressure spectrum, in bars, that the door must withstand. Baumert has developed doors resistant up to 50 bars, tailored to specification following a risk analysis.
This is a door capable of withstanding hydrostatic pressure equivalent to that exerted by 12 metres of water above its threshold, or around 1.2 bar of differential pressure. It incorporates high-performance seals around the entire perimeter, a locking system resistant to hydrostatic loads, and a structure sized to transfer these loads to the anchorages without deformation.
A gamma and neutron radiation protection door is a technical door designed to attenuate ionising radiation between a source zone and a protected zone, particularly in nuclear facilities, controlled areas or reactor buildings.Protection against gamma radiation generally relies on dense materials, such as steel, with the thickness calculated according to the energy and flux of the radioactive source. Neutron protection, on the other hand, requires hydrogen-rich materials to moderate the neutrons, combined with absorbing materials such as boron to capture them.When a door must combine gamma and neutron radiation shielding, it incorporates several layers of specific materials. Its design must then take into account mass, manoeuvrability, civil engineering interfaces, sealing, maintenance and any additional requirements such as fire resistance, seismic resistance or containment.Baumert designs gamma and neutron radiation protection doors for demanding nuclear environments. The company has notably equipped all 19 French EPRs with this type of technical door.
Air sealing is measured in accordance with standard EN 1026: a pressure difference is applied and the leakage rate is measured in cubic metres per hour. The result determines the class according to EN 12207. Water sealing is verified in accordance with EN 1027, classified according to EN 12208. For nuclear sites or sites at risk of flooding, specific tests are conducted at pressures defined following the site's risk analysis. Baumert carries out these tests in-house, on equipment that meets the standards used by accredited laboratories, drawing on certified laboratories where required. This allows the qualification schedule to be controlled while minimising uncertainty and external dependencies.
Technical doors intended for nuclear environments must meet stringent requirements in terms of quality, safety, traceability, product qualification and regulatory compliance.To work on French nuclear sites, the key certifications and qualifications include ISO 9001, ISO 19443, the CEFRI certification for interventions in radiological zones, as well as EDF UTO 85/114 qualification for interventions and supplies intended for CNPEs. Baumert complies with these reference frameworks and holds the certifications required to support nuclear projects in France.Internationally, other reference frameworks may apply depending on the country, the operator and the client: GOST-R for certain Russian projects, NDK for Turkey, as well as specific qualifications for British, Chinese or American projects.The equipment itself can be qualified against performance standards, for example EN 1634 for fire resistance, EN 12207 and EN 12208 for sealing, EN 1627 for anti-intrusion, or EN 1522-1523 for ballistic protection.Baumert supports operators, engineering firms and clients in defining the applicable requirements, compiling the technical files, and qualifying technical doors suited to nuclear environments.
Compliance of a technical door does not end at handover. On a critical site, it must be established at delivery and then maintained throughout the equipment's lifecycle.Establishing compliance means assembling a complete quality file: quality plan, drawings, test reports, certificates, and operating and maintenance guide. Maintaining this compliance then relies on regular preventive maintenance: checking mechanical clearances, inspecting seals, testing locking systems, verifying correct operation and drafting intervention reports.When standards, reference frameworks or operating requirements evolve, gaps can appear between the expected performance and the equipment in place. Baumert then supports operators with gap analysis, technical audits, regulatory maintenance and bringing their technical doors back into compliance.When retrofit or refurbishment is more appropriate than replacement, Baumert can propose a life extension programme to bring the equipment up to current requirements, with post-works qualification if required.
Designing a seismic- or blast-resistant door requires advanced expertise in structural calculation, mechanics, materials resistance and the analysis of accidental loadings.For a seismic-resistant door, the loads transmitted to the door, the frame, the anchorages and the civil structure must be assessed. For a blast-resistant door, account must be taken of pressure, impulse, permissible deformation, mechanical strength and the door's ability to remain functional in line with the project's requirements.R&D makes it possible to adapt the design to the site's real constraints: dimensions, mass, materials, locking systems, sealing, qualification and maintenance.
Yes. For critical sites, it is often necessary to carry out specific qualifications to demonstrate that a door meets the project's requirements.These qualifications can cover various performance areas: fire, smoke, sealing, anti-intrusion, blast, ballistic, seismic, radiation protection or flood resistance. They can be carried out in accordance with existing standards, client reference frameworks, or test protocols defined for a particular project. Baumert supports its clients in defining the performances to be qualified, preparing the technical files, designing the solution and substantiating the expected results.
The design of a technical door must take civil engineering constraints into account at a very early stage. A door for a critical site is not limited to the leaf: it operates together with its frame, anchorages, concrete or metal support, installation tolerances and immediate surroundings.The main points to anticipate are the dimensions of the opening, the flatness of the support, the loads transmitted to the building, the loads associated with the door's weight, seismic or blast constraints, installation tolerances, site accessibility and future maintenance.Early coordination between the manufacturer, the engineering team and the civil works contractor reduces the risk of incompatibility during the construction phase.
At Baumert, the calculation team within the design office uses structural calculation and digital simulation to de-risk the design of technical doors intended for critical sites.These studies make it possible to predict how a door will behave under complex loadings: seismic, blast, pressure, deformation, mechanical loads, large dimensions or civil engineering interfaces. They are used to validate design choices, optimise dimensioning and anticipate the loads transmitted to the door, the anchorages and the supporting structure.Carried out ahead of physical testing, digital simulations reduce technical risk, guide qualification campaigns and limit design iterations.This calculation capability is essential for designing bespoke critical access solutions that are qualifiable and suited to the requirements of nuclear sites, defence infrastructure and critical industrial environments.
