Polycarbonate is the material of choice for pool enclosures across Australia — offering the strength to handle wind, rain, and heavy loads, while letting in the natural light that makes an enclosed pool feel open and inviting. But which type of polycarbonate sheet is right for your project? Here’s what you need to know.
Why Polycarbonate for Pool Enclosures?
Compared to glass, polycarbonate offers significant advantages for pool enclosure applications:
- Up to 250x more impact-resistant than safety glass — won’t shatter if struck
- Lightweight — roughly half the weight of glass, reducing structural load
- UV-protected — blocks harmful UV rays while maintaining high light transmission
- Weather-resistant — handles Australian heat, UV, rain, and wind without yellowing or degrading
- Thermally efficient — helps retain pool water temperature, reducing heating costs
- Safe — does not produce dangerous shards if damaged
Solid vs Multiwall Polycarbonate: Which Is Right for a Pool Enclosure?
Solid Polycarbonate Sheet
Solid polycarbonate sheets are compact, single-layer sheets with no internal air chambers. They offer the highest strength and impact resistance of any polycarbonate format — making them the preferred choice for pool enclosure panels that need to handle significant structural loads.
- Strength — withstands wind loads and heavy impacts without cracking
- Clarity — up to 89% light transmission for a bright, open feel
- Sound insulation — better than multiwall for blocking external noise
- Thickness options — typically 4mm, 6mm, 8mm, 10mm; 8mm is commonly used for pool enclosure panels
- Best for — vertical side panels, doors, and structural glazing elements
Multiwall (Twin-Wall) Polycarbonate Sheet
Multiwall polycarbonate sheets have internal air chambers between layers, which significantly improves thermal insulation. They are lighter than solid sheets of equivalent thickness and more cost-effective for large roof spans.
- Thermal insulation — air chambers reduce heat loss, helping maintain pool water temperature
- Lightweight — easier to handle and requires less structural support
- Cost-effective — lower material cost for large roof areas
- Diffused light — softens direct sunlight, reducing glare on the water
- Best for — roof panels and large overhead spans where insulation is a priority
Solid vs Multiwall: Side-by-Side Comparison
| Solid Polycarbonate | Multiwall Polycarbonate | |
|---|---|---|
| Impact resistance | Highest | Good |
| Thermal insulation | Moderate | Excellent |
| Light transmission | Up to 89% (clear) | Up to 82% (clear twin-wall) |
| Weight | Heavier | Lighter |
| Sound insulation | Better | Good |
| Cost | Higher | More affordable |
| Best use | Side panels, doors, structural glazing | Roof panels, large spans |
Our Recommendation: Use Both
For most pool enclosure projects, the best outcome comes from combining both sheet types:
- Solid polycarbonate for vertical side panels and doors — where strength and clarity are paramount
- Multiwall polycarbonate for the roof — where thermal insulation and light diffusion matter most
This approach balances structural performance, energy efficiency, and cost across the full enclosure.
Tinted vs Clear Polycarbonate for Pool Enclosures
Both solid and multiwall sheets are available in clear and tinted options:
- Clear — maximum light transmission; ideal for cooler climates where solar gain is welcome
- Grey or bronze tint — reduces glare and solar heat gain; better for north-facing enclosures in warmer Australian climates
- Opal/diffused — softens light evenly; popular for roof panels
Shop Polycarbonate Sheets for Pool Enclosures
ExcelitePlas stocks a full range of solid and multiwall polycarbonate sheets in multiple thicknesses, tints, and sizes — available cut to size with fast delivery across Australia from our Dandenong South Warehouse.
Contact our team for expert advice on the right specification for your pool enclosure project.
