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External Doors & UK Building Regulations | Security Direct

7th May 2025

A Comprehensive Guide to External Doors and Building Regulations: New vs. Existing Commercial Buildings

Selecting the right external doors is crucial for ensuring safety, compliance, and efficiency in commercial buildings. Whether you're constructing a new facility or upgrading an existing one, understanding the applicable building regulations is essential. At Security Direct, we provide a range of certified doors designed to meet these stringent requirements.

 

Understanding Building Regulations for External Doors

Building regulations in the UK set the standards for the design and construction of buildings, ensuring health, safety, and accessibility. When it comes to external doors, several parts of the regulations are particularly relevant:

  •   Part B: Fire Safety
  •  Part E: Resistance to the Passage of Sound
  •  Part K: Protection from Falling, Collision, and Impact (Glazing)
  •  Part L: Conservation of Fuel and Power
  •  Part M: Access to and Use of Buildings
  •  Part Q: Security in Dwellings
      

These regulations apply differently to new constructions and existing buildings.

 

New Commercial Buildings

For new commercial constructions, compliance with the latest building regulations is mandatory. Key considerations include:


Fire Safety (Part B)

   Fire Doors: Fire Rated Doors must meet standards such as BS 476-22:1987 or BS EN 1634-1:2014, ensuring appropriate fire resistance levels (e.g., FD30, FD60).

   Installation: Proper installation is critical, including the use of compatible ironmongery and sealing systems.
 

Thermal Performance (Part L)

   U-Values: Thermally Rated Doors should achieve U-values as specified in the regulations to ensure energy efficiency.
 

Accessibility (Part M)

   Door Widths: Minimum clear opening widths are specified to accommodate all users, including those with disabilities.
 

Direction & width of approachNew Buildings (mm)Existing Buildings (mm)
Straight-on (without a turn)800750
At right angles to an access route at least 1500mm wide800750
At right angles to an access route at lest 1200mm wide825775
At right angles to an access route at least 1200mm wide1000775


 

Security (Part Q)

   Standards: Security Rated Doors must be designed to resist physical attack, incorporating features like multi-point locking systems.

 

Existing Commercial Buildings

For existing buildings, the focus is on maintaining and upgrading doors to meet safety standards:


Fire Safety

   Regulatory Reform (Fire Safety) Order 2005: Mandates that fire doors are properly maintained and inspected regularly.

   Inspections: Regular checks are required to ensure doors function correctly and provide the necessary protection.
 

Accessibility

   Upgrades: When refurbishing, it's essential to consider accessibility improvements, such as adjusting door widths and thresholds.
 

Security

   Enhancements: Upgrading locks and reinforcing doors can improve security in line with current standards.

 

Key Considerations for Both New and Existing Buildings

  •    Sound Insulation (Part E): Doors should minimize sound transmission, especially in environments where noise control is important.
  •  Glazing Safety (Part K): Glazed areas in doors must use safety glass to prevent injuries.
  •  Regular Maintenance: Ongoing inspection and maintenance ensure that doors continue to meet regulatory requirements over time.

 

Why Choose Security Direct?

At Security Direct, we offer:

  •   Certified Products: Our doors meet all relevant UK Fire and Security standards and regulations.
  •  Expert Guidance: Our team can advise on the best solutions for your specific needs.
  •  Custom Solutions: We provide tailored door systems to fit various applications and compliance requirements.

 

Get in Touch

Ensure your commercial building's external doors are compliant, safe, and efficient. Contact Security Direct today for expert advice and high-quality door solutions.

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