Development and production of thermally insulated stainless steel roof hatches for safe flat roof access
Staka Bouwproducten B.V.
Oosterhout (NL)New on Amplifa
About Staka Roof Hatches
Staka Bouwproducten B.V. is a technical manufacturing company in Oosterhout (Netherlands) that develops and manufactures stainless steel (RVS) roof hatches for safe access to flat roofs. The product range includes the TopAccess and DL series, custom-made hatches, glazed roof hatches for roof terraces, and electrically operated versions, combinable with scissor ladders, hook ladders, fixed stairs, and retractable ladders made of aluminium. The hatches are manufactured on an in-house production line, including welding of the hinge seams, and are delivered fully pre-assembled with mounting flange and pre-drilled fixing points. The thermally separated construction achieves a U-value of 0.21 W/m²K; maximum dimensions are 2560 × 1060 mm. Customers include construction companies, architects, and property owners in residential, commercial, and industrial construction, with reference projects for Porsche, Van Wijnen, and the University of Groningen. The company's roots date back to 1956; roof hatches have been produced since 2008.
- Site
- AA Oosterhout
- Processes
- Manufacture of thermally insulated roof hatches from RVS (stainless steel) with own production, Assembly and delivery of fully pre-assembled roof hatches with mounting flange and mounting holes, Custom manufacturing of roof hatches (Maatwerk) in standard sizes 900x700 to 2400x900 mm, Online configurator with direct quotation, BIM models (Revit, ArchiCAD, SketchUp), 2D DWG drawings, STABU specification texts, Installation instructions and support, Installation by certified installer partners, Custom manufacturing
- Materials
- Roestvast staal (RVS), Aluminium (stairs, ladders, anti-slip steps), HR++ glass (tempered, laminated), Stainless steel (Roestvast staal), Aluminium, HR++ glass
- Certificates
- KOMO attestation (SKG-IKOB, BRL 3301), TÜV product certificate (TopAccess), TÜV product certificate TopAccess, CE marking (Construction Products Regulation), EN 1991 load-bearing capacity verification
- Founded
- 1956 (root
- Industries
- Residential construction, Commercial construction (offices, canteens, theaters, schools, care facilities), Distribution centers and industrial halls, Roof terraces, Maintenance and inspection of technical roof installations, Rail infrastructure
- 01
Engineering and design (BIM models, DWG drawings,
- 02
Stainless steel sheet metal processing on own production line
- 03
Welding (hinge seam)
- 04
Pre-assembly incl. mounting flange, gas struts, and optional electric
- 05
Product testing and certification (KOMO, TÜV)
- 06
Sales and support, installation by certified installer partners
Materials and Processes
Stainless steel (Roestvast staal)
Main material of the thermally insulated, permanently weather-resistant hatch constructions with sandwich lid structure.
Aluminium
Material for fixed stairs, hook ladders, retractable ladders, and anti-slip steps, among others according to EN 14122-3 and EN 131.
HR++ glass
Fall-through-safe laminated safety glass for glazed roof hatches with daylight entry for roof terraces.
Locations
Oosterhout
NLDevelopment, production, and sales
- Part weight / size
- Up to 2560 × 1060 mm (TopAccess)
- Lot size
- Project manufacturing, standard and custom sizes
- Materials
- Stainless steel, aluminium, HR++ glass
- Own production line for stainless steel roof hatches incl. hinge seam welding
Components and Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of thermally insulated roof hatches from RVS (stainless steel) with own productionAssembly | – | 2560 mm × 1060 mm | – | – | RVS (roestvast staal), Aluminium, HR++ glass |
| Assembly and delivery of fully pre-assembled roof hatches with mounting flange and mounting holesAssembly | – | 2560 mm × 1060 mm | – | – | RVS (roestvast staal) |
| Custom manufacturing of roof hatches (Maatwerk) in standard sizes 900x700 to 2400x900 mmEngineering | – | 2400 mm × 900 mm | – | – | RVS (roestvast staal) |
Additional services
Reference customers
Quality and Certification
The roof hatches are KOMO-certified (SKG-IKOB, BRL 3301, Attest SKGIKOB.010510) and undergo the Imballage test according to SKG-IKOB; the TopAccess series additionally holds a TÜV product certificate (TÜV-NL-2400-B-408) with annual audits. Load-bearing capacity of the constructions is verified according to EN 1991 with a maximum load of 4,800 kg/m² by calculation through an independent engineering firm.
| Evidence | Oosterhout |
|---|---|
| KOMO attestation (SKG-IKOB, BRL 3301) | |
| TÜV product certificate TopAccess | |
| CE marking (Construction Products Regulation) | |
| EN 1991 load-bearing capacity verification |
Company History
- 1956
The company's roots date back to 1956.
- 2008
Start of roof hatch production.
- 2021
Delivery of a roof hatch for the Porsche Centrum Twente.