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Fire protection / soundproofing

Effective, structural fire protection is the best protection against fire. Fire protection is a comprehensive topic and we are happy to provide you with active support and advice on how to implement it.

Over a million years ago, humans learned to use fire.

Increasingly complex projects and new guidelines mean more demands on architects, building contractors and developers. We support you with our advice and support in selecting the ideal fire protection option in terms of structural safety and cost-effectiveness, as well as binding information on professional execution.

The four pillars of fire protection

Nowadays there are always combustible substances in rooms, depending on their type, use and purpose. The only way the fire can spread can be prevented by designing the components used in the room and the components surrounding the room.

In the case of preventive structural fire protection, the following basic rules apply to planning and construction:

Low fire risk requires the use of as many non-combustible building materials as possible.
Safe exit from the building in the event of a fire must be ensured (e.g. by providing specially secured escape routes).
Limit the spread and impact of fire in order to minimise the extent of the damage (e.g. by ensuring appropriate building spacing and by using structures with the longest possible fire resistance period).

Where can you find the legal regulations?

There are different building codes depending on the federal state. However, they have one thing in common - they all contain a general clause for fire protection, which is listed in the model building code:

Structural systems are to be arranged, erected, modified and maintained in such a way that the outbreak of a fire and the spread of fire and smoke (fire spread) is prevented and, in the event of a fire, the rescue of people and animals and effective extinguishing work are possible. “ (§14 MBO 11/2002)

Further provisions and measures for structural fire protection are specified or stipulated in the state building regulations. Here we distinguish between building types:

  • Buildings of normal type or use (residential buildings and buildings of comparable use) and
  • Special buildings (e.g. high-rise buildings, industrial buildings, meeting places or hospitals).

What else counts in addition to the building regulations

Other regulations apply in particular to special structures:

  • High-rise directive or ordinance (buildings with upper edge of finished floor ≥ 22 m)
  • Point of Sale Ordinance
  • Venue Ordinance
  • restaurant regulations
  • Hospital Building Regulations
  • school building policy
  • Accommodation Ordinance
  • industrial building directive
  • Guideline for the use of combustible building materials in building construction
  • Ventilation Equipment Directive
  • garage regulation
  • Line System Directive
  • Firing Ordinance

The Model Building Code 11/2002 divides buildings into five classes depending on their height, usable area, type of use and the number of units. Different fire protection requirements apply here. Basements are also subject to special regulations.

sound insulation

The world is getting louder

Sources of noise that cannot be switched off cause everyday stress. Therefore, professional soundproofing is becoming increasingly important for the quality of living, working and living. Soundproofing systems offer homeowners, builders and public property developers reliable solutions.

Decision of the Federal Court of Justice

DIN 4109 – The Federal Court of Justice has determined that DIN 4109 has lost its contractual significance for soundproofing in residential construction.* Architects, specialist contractors and specialist dealers must therefore react even more sensitively to soundproofing requirements.

*Building contract law 117, noise protection in residential construction and DIN standards, 2. Noise protection in residential construction

The basics of soundproofing

Effective soundproofing should be able to:

building acoustics

  • External noise isolation to the interior of the building
  • Reduce sound transmission from room to room inside the building
  • Prevent sound transmission in the building to the outside (in the case of high noise emissions)

room acoustics

  • Creating an optimal "acoustic climate", especially in large rooms


DIN 4109 (1989-11)

In DIN 4109, the minimum requirements for sound insulation for living and recreation rooms are defined and, in addition, lists a procedure for verification. These are minimum requirements that must be met with regard to health protection.

Supplement 1 lists examples of the design to meet the requirements and calculation methods for proof of airborne and impact sound insulation.

Supplement 2 provides planning and implementation information, soundproofing suggestions and recommendations for living and working areas.

VDI 4100 (2012)

VDI 4100 contains recommendations for increased sound insulation in apartments and living-like rooms in terms of confidentiality and greater comfort.

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