Do Steel Slides Heat Up More – Fact or Myth?
On hot, sunny days, parents at playgrounds often wonder: do steel slides really heat up more than plastic ones? Concerns about children’s comfort and safety are valid, but does this issue stem solely from the type of material? In this article, we address these doubts by examining material properties, temperature test results, and practical ways to minimise the problem.
Does Steel Heat Up More Than Plastic?
Steel is a significantly better conductor of heat than plastic. This means it absorbs solar energy faster and releases stored heat more quickly. In direct sunlight, steel slides may heat up more, but once shaded, their surface cools much faster than plastic counterparts.
Playground Temperature Tests
To assess how material and finish affect slide heating, temperature measurements were conducted using a thermal imaging camera. The measurements took place at a public playground in Gdańsk as part of tests carried out by the local municipal infrastructure authority. Here are the results:
- Plastic slide (dark colour): surface temperature reached 55°C in full sunlight.
- Steel slide (light colour, polished finish): surface temperature reached 48°C.
- Steel slide (dark, matte finish): surface temperature reached 60°C.
These results demonstrate that colour and finish play a critical role in surface temperature. Light, polished steel surfaces reflect more solar radiation, making them cooler than dark plastic or matte-finished steel.
Ways to Cool Down Slides
Regardless of the material, several effective solutions can help reduce slide heating:
- Playground shading – Sunshades or trees provide natural shade, minimising sun exposure.
- Light-coloured finishes – Surfaces in light colours reflect more sunlight than dark ones, reducing heat buildup.
- Thermal coatings – Modern heat-reducing coatings can be applied to metal surfaces.
- Regular cooling with water – On the hottest days, playground operators can periodically spray slides with water.
Conclusion: Fact or Myth?
Do steel slides heat up more than plastic ones? The answer depends on many factors. Steel indeed absorbs heat faster, but light, polished finishes can make steel slides cooler than dark plastic structures. The key to comfort and safety lies in thoughtful playground design, considering sun exposure, colour schemes, and additional shading. Therefore, it’s worth approaching this topic individually, taking the specifics of each location into account.
