Manufactures roller shutter and venetian blind boxes made of lightweight concrete as well as plastic windows for residential and commercial construction.
Gebrüder Allendörfer Betonwerk GmbH
Gießen-Lützellinden (concrete plant) · Gießen-Lützellinden (window plant and exhibition room)New on Amplifa
About BERO
Gebrüder Allendörfer Betonwerk GmbH (BERO) manufactures roller shutter boxes, venetian blind boxes/louver blind boxes and lintel elements (RoBERO) made of BEROpor lightweight concrete with EPS insulation molded parts and construction steel fabric in Gießen-Lützellinden. Since 1948, the patented BERO roller shutter box made of pumice concrete has shaped the product range; today it comprises four basic roller shutter box designs, surface-mounted and built-in venetian blind boxes up to 7.00 m delivery length as well as fire protection boxes (A2) and passive house variants with EPS WLG 032. In addition, plastic windows, doors and roller shutters based on VEKA profiles are manufactured, delivered and installed, including made-to-measure special solutions such as “2 in ONE” (venetian blind and roller shutter in one box). Customers include residential construction companies, building contractors, building materials merchants and private builders; reference projects include Volksbank Mittelhessen, GWH, Wilma Wohnen and Bouwfonds, among others. Deliveries are made with the company's own trucks to all 16 federal states as well as to northern France, Luxembourg and Belgium, and also just-in-time in the project business. The site is located centrally in Germany approx. 50 km north of Frankfurt.
- Site
- Gießen-Lützellinden
- Processes
- Manufacture of roller shutter boxes made of lightweight concrete (with EPS insulation molded part), Manufacture of venetian blind boxes / louver blind boxes (surface-mounted and built-in systems), Manufacture of lintel elements for surface-mounted elements (RoBERO, load-bearing or, Miter cuts incl. mounting brackets for venetian blind boxes (corner constructions), Production of plastic windows (complete window solutions, partner VEKA), Delivery and installation of windows and roller shutters, Made-to-measure, custom fabrication of roller shutter and venetian blind boxes incl. planning, Expert advice and planning support
- Materials
- BEROpor lightweight concrete, Pumice concrete, EPS insulation material (WLG 032), Construction steel fabric, Plastic (VEKA window profiles)
- Certificates
- Building physics test reports (e.g. ita)
- Founded
- 1946
- Employees
- approx. 70
- Industries
- Residential construction, Architecture and planning, Construction companies, Building materials trade, Housing and settlement companies, Private builders
- 01
Expert advice and planning support
- 02
Cost calculation
- 03
Production of lightweight concrete boxes
- 04
Miter cuts / custom fabrication
- 05
Own delivery to the construction site
- 06
Window and roller shutter work incl. installation
Materials and Processes
BEROpor lightweight concrete
Thermally insulating lightweight concrete for roller shutter, venetian blind and lintel elements with high dimensional stability.
Pumice concrete
Material of the first BERO roller shutter box, patented in 1948.
EPS insulation material (WLG 032)
Interior insulation of the boxes, including for energy-efficiency and passive house variants (λ = 0.031 W/(m·K) for the RoBERO lintel).
Construction steel fabric
Reinforcement of the lightweight concrete boxes for torsional rigidity and durability.
Plastic (VEKA window profiles)
Profile material of the plastic windows manufactured since 1978; profile supplier is VEKA (Sendenhorst).
Sites
Concrete plant Gießen-Lützellinden
DEConcrete plant: production, office, exhibition
- Materials
- Lightweight concrete (BEROpor), EPS insulation, construction steel fabric
Window plant Gießen-Lützellinden
DEWindow plant and exhibition room/showroom
- Materials
- Plastic (VEKA profiles)
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of roller shutter boxes made of lightweight concrete (with EPS insulation molded part)Casting | – | 7 m (maximum production length) | – | – | Lightweight concrete (BEROpor), EPS insulation, Construction steel fabric |
| Manufacture of venetian blind boxes / louver blind boxes (surface-mounted and built-in systems)Casting | – | 7.00 m (delivery lengths) × up to 35 cm (surface-mounted) | – | – | Lightweight concrete, EPS insulation, Plastic finishing profile |
| Manufacture of lintel elements for surface-mounted elements (RoBERO, load-bearing orCasting | – | – | – | – | Lightweight concrete, EPS insulation (λ=0.031 W/(m x K)) |
| Miter cuts incl. mounting brackets for venetian blind boxes (corner constructions)Machining | – | – | – | – | Lightweight concrete |
| Production of plastic windows (complete window solutions, partner VEKA)Plastics | – | – | – | – | Plastic (VEKA profiles) |
| Delivery and installation of windows and roller shuttersAssembly | – | – | – | – | – |
| Made-to-measure, custom fabrication of roller shutter and venetian blind boxes incl. planningEngineering | – | – | – | – | Lightweight concrete |
Additional services
Reference customers
Quality
BAO products are backed by building physics test reports (including ita); downloads for tender texts, data sheets, CAD data and installation instructions are available.
| Evidence | Gießen-Lützellinden |
|---|---|
| Building physics test reports (e.g. ita) |
History
- 1946
Founded by the brothers Artur and Erich Allendörfer in Lützellinden; initially production of concrete roof tiles.
- 1948
Erich Allendörfer develops a roller shutter box made of pumice concrete and files a patent application for it under the product name “BERO”.
- 1950er
Construction of the first office and production building on the outskirts of Lützellinden; market leadership in roller shutter boxes made of lightweight concrete.
- Ende der
Specialization in the construction of individual single and multi-family houses in patented masonry panel construction.
- 1978
Start of plastic window production; VEKA (Sendenhorst) becomes partner and profile supplier.