With summer just around the corner, I started looking for a product to block radiant heat from entering my room while still allowing some light in.
After some research, I found this product called "Renshade", a thin sheet of perforated foil that claims to offer most of the advantages of external shading but none of the drawbacks:
- Renshade is perforated aluminium foil, cut to the size of your windows and fixed to the inside glass by Velcro spots.
- Renshade keeps heat out - radiant heat flow is reduced by 85% while re-radiating only 3%.
- Renshade reduces solar glare substantially but allows a far more gentle light into your home, protecting your furniture from premature fading.
- Renshade allows views outside while ensuring internal privacy. But beware, at night, the opposite occurs, so an internal blind would be useful.
- Renshade reduces the need for and expense of air conditioning.
- In most cases, natural evening ventilation and ceiling fans should be enough to keep temperatures at a comfortable level.
- Renshade is easy to install and easy to take down once summer is over. Just roll it up and store carefully until next summer.
- Designed and manufactured in Australia.
No idea how good the product actually is, and was happy to try it out at $50.00 for 2 rolls, but was even happier when I noticed at check-out that the second roll was free!
They also offer free pick up from Preston (Vic) Tuesdays and Fridays from 8:00AM to 3:00PM
*Edit: just to clarify, it's 340mm x 5m, so depending on the area you need covering, you will likely be sticking several strips (instead of 1 continuous piece) to cover the entire window
I have the same product, it costs 50 cents and is called tin foil.