The Three Technologies at a Glance

Before diving into the details, here’s a quick overview of what makes each solution unique.

Seasonal Air Domes are our British-manufactured structures that go up for winter and come down for summer. They’re ideal for facilities that want to preserve outdoor play during warmer months whilst generating essential winter revenue.

Permanent Air Domes use advanced double-skin technology from our exclusive DUOL partnership. They stay up year-round, offering total climate control and premium playing conditions. These are the choice of Premier League academies and David Lloyd Leisure.

Framed Fabric Structures use a rigid frame rather than air pressure, with fabric roofing and optional side panels. They offer natural ventilation and an open-air feel whilst still protecting from rain and wind—perfect for sports like padel where social atmosphere matters.

Seasonal Air Domes: Maximum Flexibility, Minimum Complexity

Our seasonal domes represent over 40 years of British engineering, with more than 200 installations across the UK. They’re single-skin structures maintained by continuous air pressure from fans, designed to be erected in autumn and stored during summer.

Choose seasonal if you:

Want to preserve summer outdoor play. Many members and players genuinely prefer the authentic outdoor experience during good weather. Seasonal domes let you have the best of both worlds.

Value operational flexibility. Seasonal domes can be relocated if your needs change—a significant advantage over permanent structures.

Prefer simplicity. Designed for venues without technical expertise, seasonal domes require only basic training for safe operation.

Key features:

Installation takes just 3-4 days, with our DomeCycle™ service handling the complete seasonal erection and removal process. Natural light transmission of 40-60% reduces energy costs whilst maintaining an outdoor feel. And our unique rapid deflation capability means the dome can be safely removed in under 4 hours if severe weather threatens—a key safety advantage.

Membrane choice: Polyethylene (PE) membranes offer superior light transmission and typically last 6-10 years. PVC membranes last 15-20 years and offer custom colour options including club branding.

Ideal for: Tennis clubs, schools, golf driving ranges, and community sports venues wanting cost-effective seasonal coverage.

Permanent Air Domes: Perfect Conditions, Every Day

When excellence is non-negotiable and conditions must be perfect year-round, our permanent air domes deliver the world’s most advanced covering technology. Through our exclusive UK partnership with DUOL, we provide double-skin structures proven in environments from Siberian winters to Middle Eastern summers.

Choose permanent if you:

Need year-round consistency. For elite training programmes, professional coaching academies, or facilities where members expect premium conditions regardless of season, permanent domes deliver uncompromising standards.

Prioritise energy efficiency. The double-skin construction with air between membranes creates superior insulation, achieving A-rated energy performance with 50-70% savings versus single-skin alternatives.

Want total climate control. Integrated HVAC systems maintain optimal temperature and humidity year-round, with smart controls for automated management.

Serve a premium market. David Lloyd Leisure operates 35 Covair domes across the UK because the member experience justifies the investment. Premium facilities command premium expectations.

Key features:

Double-skin PVC construction with sophisticated electrical control systems including anemometer wind sensing. Professional features include airlock doors, emergency exits, roller shutter access, and LED sports lighting (500-750 lux). Installation takes 7-10 days following 4-6 weeks of groundworks.

Technology options: ECO Advance offers an upgradeable platform, whilst ECO Ultra delivers maximum insulation and A-rated energy performance. Both include IoT monitoring and remote management capabilities.

Ideal for: Premier League academies, premium leisure operators, university sports centres, and any facility where consistent professional-grade conditions are essential.

Framed Fabric Structures: Open-Air Feel with Weather Protection

Framed structures take a fundamentally different approach. Rather than air pressure, they use rigid frames—geodesic, steel arch, or timber—with fabric roofing and configurable side panels. The result is a naturally-ventilated space that protects from rain and wind whilst maintaining connection to the outdoor environment.

Choose framed if you:

Want natural ventilation. Zero mechanical ventilation costs make a real difference to operational budgets. The fresh air circulation creates comfortable conditions without the overhead.

Need spectator access and social atmosphere. Padel’s explosive growth is partly driven by its social nature—players want to be seen, and spectators want to watch. Open-sided framed structures deliver this perfectly.

Prefer seasonal adaptability. Sliding curtain systems let you close sides in winter for wind protection, then open them in summer for maximum airflow—offering flexibility without the complexity of full seasonal erection and removal.

Value architectural impact. Modern framed structures make a statement. Contemporary aesthetics attract younger players and enhance facility appeal for events and competitions.

Key features:

Multiple structural systems available including geodesic frames (spanning 18-100m), compound curves optimised for padel, and elegant timber arches. Sidewall options range from fully open to sliding curtains to fixed panels. Roofing can include translucent sections for natural light or blockout membrane to prevent light pollution in residential areas.

Ideal for: Padel venues, multi-sport community facilities, golf driving ranges with hospitality focus, and sustainable-focused operators prioritising natural ventilation.

Making the Decision: Key Questions to Ask

What’s your operational philosophy?

Do your members cherish summer outdoor play? Seasonal domes preserve this whilst adding winter capability. Do they expect consistent premium conditions regardless of weather? Permanent domes deliver this. Is social atmosphere and spectator engagement important? Framed structures excel here.

What are your planning constraints?

Seasonal structures often benefit from simplified planning as temporary structures. Permanent installations require full planning permission but may be easier to approve than traditional buildings. Your local context matters—we provide full planning support and have extensive experience with UK planning authorities.

What’s your energy priority?

If minimising operational costs is paramount, framed structures with zero ventilation costs or permanent domes with A-rated efficiency deliver long-term savings. Seasonal domes have modest running costs but don’t offer the same energy performance as double-skin permanent structures.

What sport are you covering?

Tennis clubs typically choose seasonal or permanent domes depending on member expectations. Padel venues increasingly favour framed structures for their social atmosphere and spectator appeal. Football training facilities often need the consistent conditions of permanent domes. Golf ranges work well with any solution depending on their positioning—traditional ranges suit seasonal, premium ranges suit permanent, and social venues suit framed.

The Covair Advantage: One Partner, Every Solution

Unlike specialists who can only offer one technology, Covair provides the complete spectrum. We manufacture seasonal domes in the UK, exclusively distribute DUOL’s premium permanent technology, and partner with leading framed structure providers. This means our recommendation is based purely on what’s right for your facility—not limited by what we happen to sell.

With 40+ years of experience and 200+ UK installations, we’ve helped facilities of every type find their ideal solution. From village tennis clubs to Premier League academies, from padel start-ups to university sports centres, we understand the nuances that make each project unique.

Your Next Step

The best way to determine which solution fits your facility is a conversation. Our consultative approach starts with understanding your specific challenges, ambitions, and constraints—then matching you with the technology that delivers optimal outcomes.

Every project begins with a discovery call, followed by a site visit where we can assess your facility and discuss options in detail. From there, we develop a tailored proposal with visualisations, specifications, and a clear breakdown of what’s involved.