Beratung / Consulting Hotline

H-Flachs Solutions Workshop

Development and
design of special doors,
fire protection doors and fire protection elements

Test lab for sound protection

Boards for your individual fire and sound protection


Complex systems? We know what to do!

Fire protection and sound protection means complex systems with highest safety requirements. Elaborate inspections of the fire resistance and in-factory production inspection with regular monitoring by legitimated inspectors are required.

Do you have any special demands to door systems, panels, and components for sound protection, fire resistance, smoke tightness, heat insulation, and climate classification? We develop a customised solution together with you. Our special focus is on cost-optimised production and a test plan that meets all required demands.

We are familiar with all the complex questions and will competently navigate you through the jungle of laws and special national requirements, such as doors to the British Standard or Standard Middle East (Dubai). EU member states that do not mark their building products with CE (compliance with European standards) have their own national technical specifications.

H-Flachs Passive Fire Protection

„“H-Flachs has many years of experience in passive fire and sound protection.
We will pass this on to you.”

Wolfgang Hagenauer

+49 8654 589910

Wolfgang Hagenauer

Special doors

You design and develop your door with us

Do you need a door that is guaranteed to work in special situations? We have already developed many doors for special applications. We know which components matter. We supply all door components at fixed prices and, if possible, at individual piece numbers.

Radiation Protection Doors

Test laboratory

Fire protection test and test lab sound protection

We measure sound insulation of door systems to the standard EN 10140 under consideration of all requirements in our sound protection test laboratory. We optimise the system together with you and to your needs.

H-Flachs Sound Lab

H-Flachs Fire Core

Panel materials made of non-flammable minerals are our core competence!

The H-Flachs Fire Core is a lightweight door insert of flax with very good fire resistance and heat insulation. A thickness of 32 mm already achieves a fire resistance of 30 minutes or more.

Your advantages

Low distortion by fire. The door will remain straight within a calculated fire resistance while exposed to fire.

Good heat insulation. The side facing away from the fire remains cool in the fire test.

Low combustion. The H-Flachs Fire Core barely loses any thickness in fire.

The H-Flachs Fire Core has a much lower weight than wood-material-based products (chipboard, MDF, plywood, etc.).

The H-Flachs Fire Core is made of flax, a plant- based material, and can be simply recycled with the door after its life cycle.


H-Flachs Sound Core

The H-Flachs sound insulation insert meets high requirements for passive sound insulation.

Your advantages

H-Flachs Sound Core is characterised by outstanding sound protection properties.

H-Flachs Sound Core has the lowest weight per decibel of sound insulation among all competing products. While competition offers weights by volume of 480 to 800 kg/m3, we only need 350 kg/m3 for the same results.

Doors with an H-Flachs Sound Core can achieve typical heat insulation values of Ud=1.5 W/m2K for inner doors and Ud=1.0 W/m2K for front doors. The heat conductivity coefficient is at ʎ = 0.071 W/mK.

H-Flachs Sound Core is made only of flax, a plant-based material, and can be simply recycled with the door after its life cycle.

Multifunctional board

Are you looking for a special combination of various requirements? Maybe you need your product both fire-resilient and sound-proof? Or rather very lightweight and water-repelling? Or ecologically safe and smoke-inhibiting?