GIY: How to keep your house cool with windows shaded with foil-laminated cardboard (renshade)

If you want to keep your house cool in summer without cranking up the energy-hungry cooling you have got to stop the sun hitting the glass.

If you're not quite up for the expense of awnings but still need to stop the hot-house effect this is the GIY job for you. We use a product called renshade, stick it up on your windows and skylights and it reflects the heat back out.

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Howto & Style