A 15-meter-wide by 38-meter-long clear span aluminum structure now encloses a municipal swimming pool, delivering 570 square meters of column-free space directly over the existing pool deck.

The project brief called for a weatherproof covering that would let the facility operate year-round without drilling into the original concrete surround — a constraint that ruled out conventional steel-framed sheds. This clear span marquee tent meets those requirements exactly, resting on the existing deck with ground-weight plates as the sole anchoring method and providing a sealed training environment that preserves every square meter of the pool’s original footprint.

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Aluminum Frame and Modular Engineering

The load-bearing skeleton uses 6061-T6 extruded aluminum profiles with main beams at 300×120mm cross-section, connected by galvanized steel fork joints and secured with grade-8.8 fasteners. Spanning 15 meters wide without a single interior column, the arched roof achieves rigidity through cross-bracing at 5-meter bay intervals.

This modular architecture means the entire frame can be deconstructed into transportable segments for relocation or seasonal reconfiguration, a practical advantage over welded steel alternatives.

The enclosure integrates transparent PVC sidewalls along both long sides, letting natural daylight flood the swimming area while blocking wind and rain. Operators chose clear panels over opaque alternatives specifically to maintain the outdoor feel that swimmers expect, while still providing full weather protection. The roof membrane uses 850gsm double-coated PVC fabric with a white interior surface that reflects ambient light, noticeably reducing daytime electrical demand.

A ratchet-and-webbing tensioning system runs the full perimeter, keeping the fabric uniformly taut across the arched profile and eliminating any flutter in gusty conditions. Each sidewall bay includes a zippered ventilation panel at ground level, giving pool staff fine-grained control over cross-flow ventilation without opening main entry points.

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Wind, Fire, and Humidity Performance

This sports marquee tent is engineered for wind loads up to 100 km/h when paired with the full ground-weight anchoring protocol. Each 5-meter bay carries four concrete weight plates of 500kg apiece, evenly distributed and resting directly on the pool deck without penetrating the surface.

The fabric meets DIN 4102 B1 fire retardancy standards and incorporates UV stabilizers that prevent yellowing under prolonged tropical sun exposure.

Pool-specific humidity management relies on the arched ceiling profile and integrated ridge vents that create a passive convection loop: warm moist air rises and exits through the top, while cooler replacement air enters through ground-level sidewall gaps.

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For pools with higher chlorine concentration in the air, optional mechanical extraction ducts can be fitted into the gable ends without any frame modification.

The entire vent system was designed to operate passively under normal conditions, stepping up to powered extraction only during peak humidity periods — a configuration that keeps running costs near zero for most of the year. The aluminum structure carries a 15-year warranty on extrusions, while the PVC membrane is rated for five to seven years of continuous outdoor deployment.

This particular installation has already weathered two monsoon seasons without a single structural or fabric issue, as documented in the indoor sports marquee case with a similar architectural approach.

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Common Questions About Pool Enclosure Marquees

How does chlorine in the air affect the aluminum frame and fabric?
The 850gsm PVC membrane is chemically inert under airborne chlorine concentrations typical of indoor pool environments. The aluminum extrusions receive a polyester powder coating that resists corrosion, and every steel connector is hot-dip galvanized. Operators should schedule rinse-downs of exposed hardware during regular pool maintenance, which takes roughly fifteen minutes per bay and adds negligible labor.

What site preparation does the pool deck need before installation?
The deck surface must be level and capable of bearing approximately 2 tonnes per anchor point. Compacted hard surfaces, concrete slabs, and existing tiled pool surrounds all qualify without additional treatment. A crew of four can erect the entire 15×38m frame and skin in five to seven working days using manual lifting methods — no heavy cranes or special machinery are needed.

Can this structure be relocated or extended later?
>>>>>The modular bay design allows adding sections to either end for increased length without structural compromise — a facility that starts at 38 meters could grow to 50 or 60 meters by adding bay modules. If the pool facility relocates entirely, the complete tent kit breaks down into labeled, truck-ready segments that a small crew can reassemble at the new site within the same five-to-seven-day window. This flexibility is a key reason operators choose marquee tent aluminum modular structures over fixed-construction pool halls, as discussed in the transparent marquee tent build report covering a similar rapid-deployment clear span project.

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This 15×38m configuration suits swimming clubs, municipal sports centers, and resort properties that want to extend pool operations across all seasons without committing to a permanent building.

The outdoor event tent structure ships as a complete kit with pre-drilled and labeled components, and the marquee tent format supports accessory integration — cassette flooring for deck areas, glass wall panels for premium viewing zones, and insulation sandwich panels where thermal performance is a priority.