From Cable-Net to Double-Skin
In 2001, we started building cable-net inflatable halls. We wrote our own software for calculating cable nets and membrane cutting patterns. We did the complete manufacturing, installation, and servicing ourselves.
After years of hands-on experience, we saw the limitations of cable-net technology firsthand: poor insulation, condensation dripping onto playing surfaces, sandbag anchoring that failed in storms. In 2012, we made the decision to transition entirely to double-skin construction.
We would never go back. Double-skin technology is superior in every parameter that matters to the operator.
Why Double-Skin Changes Everything
The difference between a double-skin and a cable-net hall isn't marketing — it's physics. Everything follows from how the shell is constructed.
How it works
The outer structural membrane and the inner membrane are welded together, creating an actively inflated 300 mm air gap between them.
Air is an excellent insulator (λ ≈ 0.025 W/m·K). This 300 mm gap provides thermal resistance comparable to standard building insulation — something a 2 cm bubble wrap on a cable-net hall simply cannot match.
- Practical U-value (measured): 2.1–3.0 W/m²K (double-skin) vs. 4–6 W/m²K (cable-net)
- Result: Over 30% lower heating costs — verified on real projects
No Condensation
In cable-net halls, the membrane bulges between the net openings forming "pillows." The steel cable sits at the lowest point of each pillow — and it's a thermal bridge. Condensate has nowhere to go but drip straight down onto the playing surface.
In our double-skin, the inner membrane stays close to indoor air temperature — condensation practically doesn't occur.
Snow & Storm Safety
Cable-net halls have a serious snow problem. Snow catches in the net openings and won't slide off. At max pressure of 300 Pa (~30 kg/m²), accumulated snow can push the hall to the ground. The membrane is only held by sandbags — one weak spot and wind gets underneath, the hall can collapse.
Our smooth double-skin sheds snow easily and can be vibrated to help it slide. The membrane is anchored directly with rods or a clamping frame along the entire perimeter. No sandbags, no weak points.
Smart Pressure Control
An anemometer continuously measures wind speed. When gusts exceed 30 km/h, the control system automatically increases internal pressure up to 300 Pa, actively stiffening the entire structure.
The response is immediate. A diesel-powered backup air unit keeps the hall inflated even during power outages.
Numbers That Matter
| Membrane lifespan | 20–30 years |
| Temperature range | -30°C to +70°C |
| Fire classification | B-s2, d0 (EN 13501-1) |
| Heating savings vs cable-net | > 30% |
| First installation | 3–5 days |
| Seasonal assembly/disassembly | 1 day |
| Compliance | EN 13782:2015, CE |
| Membrane warranty | 5–10+ years |
Materials sourced from manufacturers in Germany, Austria, and Italy. All joints made by high-frequency welding for airtight seams.
After the Sale
We support and advise you even years after delivery. Our control system collects real-time sensor data — we can diagnose issues remotely, read your dome's data like you read books, and guide you to a solution without lengthy conversations.
We continuously update our control software, making it better each year. When you work with us, your dome improves over time.