Multifoil insulation: Keeping Football crowds cool in Qatar

Multifoil insulation: Keeping Football crowds cool in Qatar

An insulating material used to keep the stadium cool?

Maybe it wasn't corruption at the top. Maybe FIFA really were impressed by the facilities they saw on their fact-finding trip to Qatar. In Doha they were shown existing stadia, such as the one below, to make the point that if playing football in the heat of Manaus is not a problem, then the heat of Qatar isn’t either. Especially when multifoil insulation is used as an insulating material. An insulating material?

How does it work?

In Qatar? Part of the construction of this stadium was fabricated by Architen using sheets of TLX Silver. The silvered surface minimises heat gain during the day, yet prevents heat being radiated into the cold desert air at night. Temperature is not the only issue when it comes to playing and watching Football. For the players, the problem is humidity, as sweat doesn't evaporate when it’s really humid – like the 95% in Manaus!

Shielding from the heat

For spectators the problem is to shield from the heating and UV effects of solar radiation. But at World Cup time, even though it’s very hot, the humidity is under 25%, with a breeze from the sea, whereas in winter the home spectators don’t want to freeze in the desert climate when heat is radiated into the cold night air. 

Meanwhile, back at home...

And on the home front, how many of the 20 million watching England v. Uruguay were sweltering under their insulated roofs - especially in loft conversions! - whilst viewers with roofs fitted with TLX Silver could keep their cool even when their team was losing. Yet when the winter season is underway they benefit from the heat reflected from its low emissivity surfaces, and the air spaces either side that inhibit conductive and convective heat transport.

Not to mention, perfect for the winter season too

Uruguay were sweltering under their insulated roofs - especially in loft conversions - whilst viewers with roofs fitted with TLX Silver could keep their cool even when their team was losing. Yet when the winter season is underway they benefit from the heat reflected from its low emissivity surfaces, and the air spaces either side that inhibit conductive and convective heat transport.

The Problem: How to ensure that TV viewers only get hot and bothered in summer if their team is losing, yet are kept warm in winter when they’re glued to the box for 2 hours at a time…

The SolutionTLX Silver's highly reflective outer layers minimise solar gain when it’s hot, yet reflect heat back into the house when it’s cold outside. Combined with 85mm of PIR it’s the effective way to achieve 0.18 W/m2K for loft conversions with winter and summer comfort.

Click to view our blog which relates to this case study

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