How to keep your house cool with windows shaded with foil-laminated cardboard (renshade)
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- เผยแพร่เมื่อ 26 ก.พ. 2011
- 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. For more energy saving DIY jobs go to www.greenityourself.com.au - แนวปฏิบัติและการใช้ชีวิต
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I couldn't take the heat anymore, My house is in the middle of a wide open field and is exposed to the sun, My room is on the front of the house, so as soon as the sun comes up, the room gets hot. So from 5am to 9am, the room is already like an oven... All I did was measure the window frame, Cut up an old carboard box to size and covered one side in foil, after 10 minutes of it in place, you can already feel the difference... Must have cost about £0.50 to do, It's not very appealing to look at from the outside, but I seriously couldn't care less, It's a minor sacrifice to have a comfy room.
Love this idea ... insulation from cardboard and reflective. Thanks for sharing.
Gaming with Mikey! Hi thanks for the idea. So you bought normal card board and put the cooking laminated foil on which side, on the inside where is your room or on the outside where is the window and then the cardboard? Much appreciated your kind answer to this. Looking forward.
Antonio Moniz I placed it inside, Flat against the window. With the tinfoil reflecting outwards. The one downside is that it makes the room dark. So you have to balance whether you prefer heat or light. :D
Gaming with Mikey! Many thanks for your answer.
Antonio Moniz You're welcome mate. :)
I've just installed mine on 2 sliding doors/windows it does wonders this summer. Amazing.
Great idea. I need this for my NYC apartment. The sun hits directly on my big tall glass windows and having a small room causes the room to feel like an oven.
Great video, very informative and easy to follow. Thank you.
Her camera personality is amazing and she seems like such a sweetheart. -Harmonious
thank you Ms. Jon much needed great Idea !
brilliant! Keeps heat out, but lets a bit of light in. Perfect. I've never seen it here in Canada. I'll have to keep my eyes open for it.
I've never seen it either. I'm in USA, North TX
Wow this would work in my ancient rental I'm living in that burns me up in the summer! It was so hot in the bedroom where I had my desktop computer the first summer that the thing overheated and had to be replaced! Got to find this! Doesn't sound "inexpensive" to me, but it would be worth it not to swelter! Thanks!
That's horrible! I'm so sorry that happened to you
Great! thank you for sharing this video
This is nice if you want to see outside but in our heat, cardboarding up the windows from the inside blocked all sunlight and moreover heat thus greatly lowering utility bills. Yes, the curtains are closed all summer. :) Cool product though, thanks for the viddie.
Your commentary made this video awesome, like living in a BBQ CHICKEN BAG.
thanks ... there's no skirting around the issue. It DOES look weird!
That's cool haha.. and i like the way i looks as well. i must try.
It's perfect and cheap. It seems to be very Australian! Let me know if you find something similar and I can update the content. Lish
You give me a relief
Wonderful video. THX.
Great video - I'm buying this stuff tomorrow.
Wonderful!!!!
Nice idea!
Great video thank you very much
U explained so nicely 👍
Thanks a lot 😊
We use a product in our RV called Reflectix. Just put it in this weekend so not sure about the savings. It is like a foil lined bubble wrap. It insulates as well as reflects. Lowe's carries it in the insulation aisle.
layton86 Did you put it on the windows of the RV?
+layton86 Sounds like just what I need for my bedroom window.
Thanks!!
Sounds great. I'll see if we have it in Australia. Do you just take it down in winter?
it's not the same thing, it's insulation for all of the time - not for seeing out of windows. they get much worse winters over there than we do here.
Reflectix is only for single pane windows which are in RVs. It's not recommended for double pane windows. It actually burnt my window frame of my double pane window. I checked the instructions after and it specifically says for single pane windows only.
Lol all the people complaining about the $90 cost. News Flash! You will start saving money on your very next electric bill trust me , and enough over just one summer to easily cover the price . So guess what next year you already have and its paid for and its still saving you money! Its a no brainer WIN WIN WIN !
those people just don't have brains and look at the long term costs.
excellent. Looking for this kind of solution in the UK now that our summers are blisteringly hot and my daughter's south facing bedroom gets turned into an oven during the day. I think I will try this on the outside as the glass being heated up radiates heat into the room and reflecting it back out after it has entered both layers of double glazing can cause it to crack as the internal seal and frame heats up.
Glad it was helpful!
That was really good! I just can't find that kind of material, but thank you!
where are you based? If you follow the thread of comments on the video some people make recommendations as to what works/product names where they live. Good luck.
Fantastic! Thank you!
You're very welcome!
When we have days of triple digit heat I hang reflective car shades under the curtains on west facing windows that aren't shaded by trees. It makes a world of difference and we don't usually have but a few days at a time of triple digits and those windows in our house are bedroom areas. They are super quick to put up and take down.
Brilliant idea. Thanks for sharing
THANKS FOR SHARING. ❤
My pleasure
DIYonTheCheap Hi did anyone find another website from where this product can be bought and shipped outside Australia, like Canada? (The aluminium card-board laminated foil for the windows in the summer) please
Philippines needed this
hooo😧
Great 👍
In Australia from a few different eco-shops. You can try EcoVantage or Enviroshop.
Thanks
Thank you so much
Any time
Could this maybe be attached with spray glue to the back of window shades? Do you think it would be thin enough that it would roll up still?
Give it a go. I think it could work ... you could also just use tin foil but I think the foil might conduct the heat onto the inside of the blind/window shade when it was down and therefore heat up the room but not as badly. Try it. Maybe I will as well.
Hi Dale,
Not sure if you can get this product in the USA. There's bound to be something similar - reflective foil laminated cardboard of window covering that you put on in Summer and pull down in Winter. Sorry not much help. You could also try contacting the Renshade supplier. He loves his product and would help you. His name is Tim Renoulf. I call him Tim Foil!
Brilliant! Tempted to wrap the whole house with this lol. Can't find it anywhere here in Holland online though. If anyone knows what to look for in Dutch please let me know!
it really works a treat. Sorry no supplier in EU yet but if your heat continues ... hope you're finding ways to keep cool.
Ok I understand to.protect it from the sun but what happens when its night and your getting the same results??? My room is next to the ad unit could it be the unit is blowing the hot air the direction my room is???
???
Ahh, you gave me some do-it-your-self hope with shading my window. Would the renshade be as effective inside the window, as outside of it? What I mean is that in placing the Renshade on the inside, the UV/IR rays have already passed through the window. Does the Renshade reflect the UV/IR back out again? Thank you, this looks like just what I need after viewing many hundreds of Ebay sellers!
YEp - it's really an inside product as it's cardboard. Outside would be better (eg an outside adjustable awning) but this is cheaper and almost as efficient. And great for renting and low-effort solutions. Hope you found something that worked.
The problem would be that if it’s outside it’s susceptible to weather and dust and might get dirty reducing its effectiveness or peel off. Indoors keeps the shade protected, even though it’s letting heat into the window glass. I guess you gotta pick your poison
Hells Bell's, that L👀is Easy!! I'm In🙋👍
I use Mylar sheets!
Wow.
would the glue from the dots not melt after sometime?
It does perish after a few years in stinking hot sunlight but the adhesive on our velcro dots here in Australia is really freaking strong! I sometime struggle to get it off the windows.
Ps how rude of me....thanks for the video. Great job in content and production.
Thanks. it's been a while since I put one out. I got a full time job but will get back on the job. Stay tuned.
Will it protect from heat only or will it reduce the sunlight also in the room? My main concern is cut down the natural sunlight in the room.Kindly advise.
It makes a huge difference to the heat gain in the room but also works to reduce sunlight in the room. It reflects them both back outside and doesn't absorb the heat like a normal curtain.
If you tape foil all around your bedroom wall would it make the house cooler ?
+drrobotnikmeanbeanma Not as much as it does on the windows. there would be some effect but might look a bit too futuristic!
Where in Ontario Canada can this be purchased?
karen mcdonald .... I pin/tape those thin foil "emergency blankets" over mine (then in the winter put them in my earthquake kit).
I don't think it reflects 85% of the heat. Based on the spacing of the holes, I believe it reflects less than 50%. Also, sun light does reach the glass, so glass is already heated, 100%. Therefore, effectively, that film reflects less than 50% of the heat.
The best heat reflector is aluminum foil installed from the outside. That way, sunlight can't even reach the glass.
You had me at BBQ Chicken Bag....
HA!
Can someone Téll me were can find it. I look in homedepot, walmart, dicsyline, Amazon And nothing. Plz were else can i look.
Don't know about in the US... contact the seller at concertinafoilbatts.com
TJ Strong where???.... help
where can I buy this? is it also available in the Philippines? thanks
Not sure - there must be something online perhaps. Check with 'renshade' providers.
I've not been able to find this product or similar being sold in the USA. Renshade doesn't seem to have their own website or a way to contact them directly through phone or email. You mentioned Tim Renoulf's name in a prior comment, but no way to contact. What would be the best way I can contact someone at Renshade or a site to purchase this product in US dollars?
I have the same question. Not on Amazon, Home Depot or Loew's. Drat.
How do I "download" the shopping list to find a distributor?
+Doug Cop Sorry for delayed response. Contact Tim Renouf at a company called 'Renshade' in Australia. As far as i know he doesn't have a distributer outside of US but there are some useful threads here that can lead you to similar products in the US
No Problem...thank you for the info.
Doug
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To work correctly this staff must be installed with at list 3/4 inch space from glass. Otherwise it will conduct heat from glass into your room. It is true for ANY radiant barrier including foil and Reflectix .
Seems not to be the case with this. A small gap is enough as this is not in contact with the glass because of the velcro sticky dots. They hold the renegade away from the window by about 3mm so you don't get the conduction of heat from the glass. The aluminium also doesn't emit heat (a crazy property of aluminium is it's low emissivity) so doesn't transmit the heat even if it does heat up a bit. A good experiment/example of this is an aluminium coffee-pot - the metal will be stinking hot with hot coffeee inside but put your hand up so close to it without touching it and you won't feel any of that heat emitted. Might be different with other products though. My experience is only with RENSHADE and it works without a large gap.
@@GIYGreenItYourself The same is true of Reflectix--only a few mm gap is needed. Their representative told me that I could cut a narrow strip of the Reflectix & use that between the Reflectix & the surface I'm insulating. However, Reflectix warns against using their product to insulate windows. They do not want to be held responsible for any damage caused to a window by the reflected heat.
Can I find this in BigW ?
No. You can purchase it from a few online eco-stores or direct from Wren Industries in Melbourne. www.concertinafoilbatts.com/renshade.htm
Can I just use regular foil?
+Jade Shea yep. That works.
I like the background music. Is it Eric Clapton.. Unplugged?
yes, but totally unplugged and not eric clapton! Very low budget replica of a friend playing!
What does it look like from the outside?
to be honest .. shiny! And not very stylish but really effective at reducing solar heat gain
Yes or no
If you have double paine windows, isn't that a bad idea?
Because what you're doing is reflecting all that heat to the second paine and it will Just heat it up and possibly Crack it. If anything it should be on the outside of the window, not on the inside.
It has holes to help with ventilation so I think it would work on DP windows.
Why cant it be applied on the outside?
Because it's made of cardboard and will just break down. You could cover it in clear contact/plastic and see if that works on the outside.
I just use Lays Potato Chip bags.
They are metallic on the inside.
I tape them to the window.
My house is cooler
But my stomach is bigger
Cleaner than a BBQ chicken bag that's for sure. Anything that is reflective will work - I love the ingenuity. A philosopher might also do the job!
hey everyone. i need some help here finding this product in the USA. I live in a condo with a shitty management and they wont let me pit foil up but my room get to hot in the summer. summer in florida are HOT. any suggestions
Read through the comments. Seems that some folk have found 'reflextics' or search for 'perforated foil radiant barrier'. Good luck
GIYGreenItYourself thank you but you can see through those. thanks for the help.
@@monchimguerra7302 What did you come up with?
@@vince7735 I would have suggested inserting shade cloth between the window and their drapery or window blind. But their comment was 7 years ago & hopefully they've solved the problem by now, LOL!
Hi what is the link to the Renshade??
www.renshade.com.au
We've done the same thing with aluminum foil. Looks worse, but I'm sure it's even cheaper.
How does condensation work within this formula?
The layer of STILL air between the film and the cold external window act as a buffer. That means the internal surface (the plastic film) doesn't get AS cold as the glass therefore condensation doesn't form. The air inside your house might be just as humid but won't condense on the windows. Always important to have good ventilation (extractor fans, open and CLOSE your windows, to keep that humidity in check). Hope that helps.
@@GIYGreenItYourself Greats. I wondered if the cardboard would swell like a cracker in soup. It's laminated except the cut to fit ends. Thanks
Where can I get this in the United States
Read through the comments tread - I think there are some good recommendations. Good luck.
I wish I could use the Velcro on my windows, the glue would melt right off. The sun is so intense in my kitchen it just melts everything. Tried aluminum foil with tape and the tape crumpled off in 2 weeks.
I've been told that applying water to the window with a wet sponge will act as a type of glue for aluminum foil. And depending upon your style of window framing, you could tape the aluminum foil to the sides instead of right on the glass. Double sided tape(without the foam insulator) would do the trick.
+David McCarthy thanks Hun! I'll have to try that, it's time to cover the Windows again.
I put of aluminum foil up too....and then burned my hand when I tried to open the window....sunlight is NOT my friend :(
why can't they make this on a roller shade?
Good question. You can get it made up into one but as it's cardboard it's not that sturdy. And I suspect wouldn't be as efficient as being stuck on the window as there would be some heat getting into the room before it hit the roller blind.
Do you ship to U.S.?
Check out Renshade website and ask Tim Renouf. You can get similar products in the US - just check out the thread of comments.
dang- for $90 bucks, just amazon window tint 99% reflective uv rays, for the same price or less, and will actually do the job
Should work well - let me know how you get on. This stuff works well but might not be as cheap as the tint.
Good but need something i can easily remove when i want to open the windows on cool days
You can still open the windows. It's almost touching the glass so depending on the type of windows you can open them. Good luck. It also just velcro-dots holding it on so you can just take it down on cool days if you can't open windows with it on.
Because it's installed on the inside, the glass still gets hot. That heat comes right in the room.
It looks that way but it's sitting on velcro-dots so not in direct contact with the glass so not conducting. And the cardboard is laminated with aluminium. Aluminium is a metal that doesn't radiate heat like other metals. It's got low emissivity which means it holds it and doesn't heat up the room. Unless you touch it and it conducts the heat.
This is surprisingly effective and I'm always so amazed it works as well as it does.
@@GIYGreenItYourself Did you put the velcro dots only at the top, middle and bottom of the cardboard sheet?
Where to buy this
ecomasterstore.com.au/products/renshade-reflective-rolls-for-hot-pergolas
shouldn't you stick it OUTSIDE the window, ideally?
In North America they stick it outside but because we pay more for the product here in AUST and leave it on all year - it seems to last much longer inside. Up to you though. Depends on the price of the film you are using.
Ideally you'd stop the sun hitting the glass form the outside. You're spot on. But lots of folk can't due to height of windows, building regulations, cost ... this is inside as it's made of cardboard. It wouldn't last thought the first driving rain!
i am afraid this has the same problem as the shutters when they are on the inside, this foil will get heated up by the sun and then will warm the room by convection. I think this would be perfekt on the outside of the window, but then there is the risk of it getting ripped away by the wind.
This aluminium doesn't convect heat inside as it's low emmisivity. If you touch it it will conduct the heat but no convection. It's remarkable..
what about mylar?
I'll find out for you ... or the world wide webbers will know.
cool i just went to dollar tree and picked up some it seems to be working so far
Pleased to hear it.
Wouldn't placing it on the outside of the window make more sense? the sun is still hitting the glass from the outside and making heat.
It would be better but it's only cardboard so wouldn't last outside.
So hot in Texas
Hellish July, August, September. By the time Halloween arrives you're stilling hoping it will cool off.
@@rr7firefly Same in south Louisiana, and even worse if a hurricane hits and the power is out for days or a week or more!
cardboard and aluminum foil is all you really need.
Absolutely. Let me know how it goes. Love to see it on the windows.
The Renshade product is better because it allows you to see out.
Does it matter that foil is on the inside?? I feel like since it’s inside it isn’t as effective?
This foil is not weather proof sadly so yes, it has to be on the inside as it's foil-laminated cardboard. Ideally you'd block it from outside but it works surprisingly well.
I searched on google and i think my window is a double hung window type and my room is facing the sun. When it is morning, the room is just okay but when it is 1- 5 pm it is so fcking hot that is y im always sleeping with no clothes on. The type of foil in the vid isnt for my windows so idk what to do. Its literally hot. Oh and i almost forgot its a bay window.
This should work. If you're in the US try a similar product. Some folk have suggested the name for it in the comments. Good luck and stay cool.
@@GIYGreenItYourself ohmy thankyou for ur reply but im from the Philippines . Tho nothing new its always hot here
reflectix works better and you can paint it
But it's solid and not see-through. Also, it's not recommended for double pane windows.
iI'd be afraid to paint Reflectix because you would lose the reflective properties. Unless you're talking about painting it on the side facing your room.
This will make the glass hot...
It sits just off the glass with the velcro dots and because the aluminium is low-emissivity the glass doesn't get as hot as you'd expect.
The folks at Home Depot never heard of aluminum cardboard. I showed them the video and they've never seen it before. Where do I buy it? l.p.p]
Yeah ... it doesn't seem to be available in the US. Read the comments through and people have some suggestions for similar product.
Just buy it directly from the seller in Australia. It's expensive up front. But pays for it self in the long run.
How did the Chinese manufacturers miss this? Went looking on the world market aka Amazon and 90% of sunblocking window treatments are being produced in Chinese factories. Tim Foil needs to sell the rights to the Chinese so Amazon can sell it in the US.
Agree. I'll pass on your comments to Mr Foil.
Agree, can't this anywhere in Ontario Canada & ecoMaster in Australia was giving me the run around to the point where I stopped reaching out. I can get cafe curtains from the Ukraine but I can't get this from Australia. 🤔
why py the highcost of the renshade when you can buy a roll of chep luminum foil for bout $1.00 and jsut tape it in your window...i had to resort to this due to a $240 electric bill for 1 month...the next day my partment is already 20 degrees cooler..nd it's nice and dark...
Thank you for sharing. I'm in the process of bouncing with this idea. Sincere gratitude to you.
How much did you save I just used r matte. Wondering how much I'm expecting to save.
How much lower was your bill?
Aluminum foil on it's own did nothing for the temps in my room and when I touch it it's very hot from the sun. Terrible solution plus it's very hard to install.
Thank you for this amazing video. I cannot tell you how many people I’ve found spending fortunes on more expensive high tech window frames 😂
I used basic middle school science to arrive at this video because I know aluminum foil is a good radiant barrier.
Thank you Middle school 😭
I’m in college now. Still works like a charm 😂
Glad I could help!
And you wont as long as they can keep it out. Not enough profit margin PLUS it lowers your utility bill. .
$90.00 no I put up thermal curtains
completely unsightly for your neighbors
true that it's not good if you are reflecting all the heat and light back through their windows. Unless they had some as well ...might be like a very rudimentary laser bouncing light back and forth.
mylar is what you want, 400 square feet is like $30 US, forget this name brand stuff shes pushing
Not pushing anything. Do whatever you can to keep the heat out. This stuff doesn't conduct or emit heat through while other metals can do that. Give mylar a go and let me know. I suspect it might heat up and transfer heat into the room. Aluminium has low emissivity meaning it doesn't emit the heat into the room unless you touch it.
You can see through her product. You can't see through mylar. Not everyone has a nefarious agenda.
No, that doesn't look like crap or anything.
+Jody I did warn you that it wasn't a good look ...but it does work.
+Jody Clearly you've never been poor/unfortunate enough be in a house with no air conditioning in the middle of an Australian heatwave.
Actually I live in Southeast Texas where Summers are in the 100s, so I know all about trying to keep a house cool. I've had more than my fair share of broken down A/C units as well. I put reflective window film on my windows and heavy curtains on the West and East facing windows to keep out the sun. My A/C is on 79 in the summer.
Reflective film is good as well ... trouble is if you have cold winters you want to make the most of the sun in winter so having something that can be would up/pulled off/taken down when it's not stinking hot makes a huge difference. Not saying it looked good. Saying that it works.
Didn't she say "cardboard"? I don't see any cardboard.
She (me) did say cardboard. It's like silver cardboard with holes
@@GIYGreenItYourself I hope you didn't think I was picking on you. I'm genuinely confused. I don't know what that is. It seems amazing Maybe it's a product we don't have around here? Where did you buy it?
Tin foil.
It's aluminium coated cardboard. It's pretty robust.
You would think that something this wonderful would be available in the U.S. But no! Instead we have that dumb plastic film that needs to be squeegeed into place, using soapy water. What a mess that is. And on a large window it's flopping all over the place during installation.
I know - It's a mystery to my why no-one has set it up or developed an import industry as I get so many requests. It's so simple and so super effective. I've heard a few people trying reflective car windscreen shades in their home windows cut to size (but these block out all the light) or making your own with cardboard or styrofoam boxes covered in tin foil but these also block out all the light. www.concertinafoilbatts.com/renshade.html
a "little bit" ugly?
I warned you. But it's undeniably cooler on the inside!
@@GIYGreenItYourself I think I am going to do it this weekend. Ugly or not I can't bare the heat in my office anymore!