Browse Forums Heating, Cooling & Insulation 1 Dec 15, 2008 12:15 am We have been in our new house 6 months and just had our first real hot day today, our bedroom was hot, hot, hot. I was anticipating this to a degree, I have some cheap verticals (which will be replaced soon) and some heavier basic curtains over the top for darkness. And I also installed some shadecloth blinds outside on the three windows on that side of the house. Thinking now that they do crap all to stop the heat. So what else can I do to decrease the heat transfer. ...yes I know, I should have put smaller windows in.... I did give the south and east sides of the house for the kids bedrooms..knowing that they at least would be cool in the evening and at night. So we ended up with only room for our bedroom and office on the west.
I am going to get ceiling fans put in the lounge, office and the offending bedroom, I am going to make heavy fabric blinds set inside the window, maybe add a pelmet too. Should i plant some greenery outside the window? Maybe add on some heavier shadecloth? No eaves to speak of, we built on a budget, damn I hate those boxed eaves on the inside. One more thing to add to the list of things I'll do differently next time, if we ever got the chance. We have no house next door yet, so I know when we do it will reduce the amount of time the sun is directly shining on the windows. So any other ideas I can do on a budget? Specific window treatments that will help? Ta Re: Help, west facing bedroom 2Dec 15, 2008 12:36 am Dragonfly We have been in our new house 6 months and just had our first real hot day today, our bedroom was hot, hot, hot. The best place to stop radiant heat is before it hits the window. The verticals won't achieve much at all. The shadecloth may not be adequate (holes are too big). BTW what colour are they? Derek Wrigley from Sustainable Homes describes makeshift blinds that are made of Coolaroo - a densely knitted white shadecloth which reflects heat but lets some diffused light in. If you just want just to stop heat than use a blind with a foil backing. Growing vines in front of the west wall or some tall vegetation can keep that wall cool. I know its too late now but having a reflective foil installed at the framing stage could have also kept the house cool. Re: Help, west facing bedroom 3Dec 15, 2008 12:46 am The shade cloth is a light tan colour, they were bunnies cheapies, thought it might make some difference, but they haven't really. I might get a length of heavier cloth and afix on top, like you mentioned.
The verticals were installed through the whole house when built..complicated loan, had to have window treatments in, so we just got them to put up the cheapest verticals. I'm slowly sewing my own replacements. Combination of roman blinds, and panel curtains. Light isn't really an issue, my dh is a night shifter so darker is better and I don't spend that much time in there during the day. Oh and the fence is about two metres from the window, buff colored colorbond, so there could be some heat off those too. Re: Help, west facing bedroom 4Dec 15, 2008 6:28 am dragonfly, we will have a similar issue. Our master bedroom faces west, also with little eaves. Have you thought of roller shutters? We have discounted them because I don't like the look of them, as the bedroom is also part of our facade.
I was thinking of planting a tree outside the window. Re: Help, west facing bedroom 5Dec 15, 2008 6:34 am Double glazing using Low-E glass to surface 2 will keep most of the heat out. But that is an expensive solution after you have built.
Here is something from 3M... Ed 3M™ Scotchtint™ Sun Control Films are designed to reduce the amount of solar heat transmission through window glass by increasing the solar reflection (not necessarily visible reflection) and solar absorption through the glass. Typical colored or dyed films work primarily through increased absorption. The color absorbs the solar energy at the glass, thus reducing the direct transmission into the room. These films are not as effective as reflective films for reducing heat. Reflective films are films that have been precision coated with metals. These metallized films are designed to increase the solar energy reflection of the glass. 3M™ Scotchtint™ Reflective Films range from moderate to excellent in solar performance (heat gain reduction). All 3M™ Scotchtint™ Sun Control Films are made to be transparent and optically clear. The ultraviolet protection in the adhesive system is there to protect the adhesive, the metals, the polyester film, and the abrasion resistant coating from UV degradation. This UV protection will also help protect home and office furnishings. Most 3M™ Scotchtint™ Window Films are protected with our patented abrasion resistant coating that provides long-term durability and maintained appearance. "ECOECO" At 'EcoEco', we design windows, we design the best windows, we do it for you, so that when you’re happy we are happy. Tel. 1800 326 326 Re: Help, west facing bedroom 6Dec 15, 2008 7:04 am Many years ago, we were renting a bungalow which had one of these on a very large west facing window :
Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ I was duly impressed, when having it down made a significant difference to the inside room temperature. It was very thick & strong. I will be installing similar on my DD's west facing bedroom window. These come all the way down - they or something similar might be an idea : Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Built the Eden Brae Cambridge 34 Family with Boston Corner Facade Re: Help, west facing bedroom 7Dec 15, 2008 9:13 am Dragonfly I'm slowly sewing my own replacements. If you are at DIyer than foil will stop >99% radiant heat dead in its tracks. Sew it to an attractive sturdy material, shiny backing facing the house and the material outwards (this doesn't make sense but trust me, the physics makes sense) Derek Wrigley's solution was to attached it to a frame and then attach a hinge to the eave. It could be raised and lowered with a pulley. Get the book (e.g. Borders bookstore) for more information. http://www.derekwrigleydesign.id.au/book_contents.shtml Re: Help, west facing bedroom 8Dec 15, 2008 2:08 pm stop the heat from hitting the window with external shading/covers. Internally a heavy drape/blinds will help as well... but the theory is stop the heat from hitting the window
cheers Dynamic Heating & Cooling - http://www.DIYheating.com.au DIY Ducted Heating & Cooling Systems DIRECT to the public Re: Help, west facing bedroom 9Dec 15, 2008 3:27 pm markDHC stop the heat from hitting the window with external shading/covers. Internally a heavy drape/blinds will help as well... but the theory is stop the heat from hitting the window cheers ........as we have experienced 1st hand with the awnings Built the Eden Brae Cambridge 34 Family with Boston Corner Facade Re: Help, west facing bedroom 10Dec 15, 2008 9:34 pm As per above - stop the heat hitting the window - but make sure there is lots of space ie 30 or more cm between the shade device (tree canvas foil etc) and the window so the heat can get away and not be trapped in the gap.
Steve Re: Help, west facing bedroom 11Dec 16, 2008 9:43 am At my old office we used the window tint stuff and it made a huge difference. Additionally shrubs and hedges against the wall itself as well as any window covering can help stop some of the heat. Building Upside down house in Wantirna VIC Current Stage: Procrastination... it's just all too hard.... Blog: http://thereluctantbuilder.blogspot.com/ Re: Help, west facing bedroom 12Dec 17, 2008 9:38 pm dymonite69 Dragonfly I'm slowly sewing my own replacements. If you are at DIyer than foil will stop >99% radiant heat dead in its tracks. Sew it to an attractive sturdy material, shiny backing facing the house and the material outwards (this doesn't make sense but trust me, the physics makes sense) Derek Wrigley's solution was to attached it to a frame and then attach a hinge to the eave. It could be raised and lowered with a pulley. Get the book (e.g. Borders bookstore) for more information. http://www.derekwrigleydesign.id.au/book_contents.shtml I'm interested in this, what exactly is foil that you can sew? And where would i look for it? I can't get to a Borders, but I'll google it and see what i find too. I might look into the sun control films also. And also try and look for that Coolaroo shade cloth. Thanks for the pics and ideas all who replied Re: Help, west facing bedroom 13Dec 17, 2008 9:53 pm Dragonfly ]I'm interested in this, what exactly is foil that you can sew? One of the heavy duty Sisalation products would do. ~ $2-5/m2. Bunnings will probably have it or building supplies company. Remember this is a makeshift solution. I can't guarantee how long the backing will last or when it will need replacing. However, its a fairly cheap replacement. Wrigley's book suggest Coolaroo is adequate. www.coolaroo.com/ I won't discount the 3M tint if it is cost-effective. Again I am not sure what kind of warranties are on this product and whether it is easy to replace if it blisters or peels. Re: Help, west facing bedroom 14Dec 17, 2008 9:56 pm dynomite (or anyone) - do you think I could sew/tack the sisalation onto regular, professionally done curtains?
I thought I remember DeeElle saying she was disappointed in her window tinting .... will try to find the thread. Re: Help, west facing bedroom 15Dec 17, 2008 10:02 pm not sure if it is the same as the 3M stuff ... DeeElle is talking about Comfort Plus here:
https://forum.homeone.com.au/viewtopic.p ... mfort+plus Re: Help, west facing bedroom 16Dec 17, 2008 10:13 pm donuts not sure if it is the same as the 3M stuff ... DeeElle is talking about Comfort Plus here: https://forum.homeone.com.au/viewtopic.p ... mfort+plus This is DeeElle's post... DeeElle This might be better suited to to Heating/Cooling forum. However, I recall Mish commenting that ppl often opt for big windows and then have to spend large amounts of money covering them. We've found that the large expanse of comfort plus windows in our house hasn't solved the heat loss / cold transfer, so we are now in the process of ordering blinds for all our rear windows and blockout, sheers and pelmets for the bedrooms and rumpus. We probably would have been better off saving the cost of the comfort plus and putting it into external blinds. Oh well .. lessons learned . No - ComfortPlus is Pilkington's brand name for Low-E. Which elsewhere in the forum I have said makes little difference in single glazed situations. I still firmly believe this and DeeElle's post illustrates it. It only works well in double glazing. The film will work better than Low-E in single glazing I am sure. Ed "ECOECO" At 'EcoEco', we design windows, we design the best windows, we do it for you, so that when you’re happy we are happy. Tel. 1800 326 326 Re: Help, west facing bedroom 17Jan 01, 2009 7:15 pm I am in the early design stages of my house that will have a west facing study and master bedroom.
The master bed room has a small verendah. http://www.porterdavis.com.au/content/H ... yman29.pdf Any tips on what cost effective measures we can take at this stage to keep the rooms cool? Re: Help, west facing bedroom 18Jan 01, 2009 7:55 pm Zerosignal I am in the early design stages of my house that will have a west facing study and master bedroom. The master bed room has a small verendah. http://www.porterdavis.com.au/content/H ... yman29.pdf Any tips on what cost effective measures we can take at this stage to keep the rooms cool? Radiant heat is your enemy here. You need materials that can block its transmission. The verandah will be too shallow to block out all the low sun. From cheap to expensive (you can combine them all) - Light coloured render - A foil building wrap e.g. Sisalation in your cavity + bulk insulation. - Deciduous trees or vines in front of the west face - Glazing with a low solar heat gain co-efficient (SGHC) - Awnings with a foil backing leaving a large gap between awning and window Re: Help, west facing bedroom 19Jan 02, 2009 1:20 pm EcoClassic Double glazing using Low-E glass to surface 2 will keep most of the heat out. But that is an expensive solution after you have built. Here is something from 3M... Ed 3M™ Scotchtint™ Sun Control Films are designed to reduce the amount of solar heat transmission through window glass by increasing the solar reflection (not necessarily visible reflection) and solar absorption through the glass. Typical colored or dyed films work primarily through increased absorption. The color absorbs the solar energy at the glass, thus reducing the direct transmission into the room. These films are not as effective as reflective films for reducing heat. Reflective films are films that have been precision coated with metals. These metallized films are designed to increase the solar energy reflection of the glass. 3M™ Scotchtint™ Reflective Films range from moderate to excellent in solar performance (heat gain reduction). All 3M™ Scotchtint™ Sun Control Films are made to be transparent and optically clear. The ultraviolet protection in the adhesive system is there to protect the adhesive, the metals, the polyester film, and the abrasion resistant coating from UV degradation. This UV protection will also help protect home and office furnishings. Most 3M™ Scotchtint™ Window Films are protected with our patented abrasion resistant coating that provides long-term durability and maintained appearance. Not disputing that films will work somewhat to keep out radiant heat . However double glazing will do nothing to stop direct sun getting through the window. S has been said by others you need to keep the sun off the glass. What has not been mentioned is if the wall is insulated or not? It might be a bit darker in the mornings but the light is still light, so you should be getting it. Similar to what you see from your western windows 3 19992 The warning is on the sticker on the door too. Second the aluminium powdercoat 6 18204 Personally, considering your layout (study/work desks in bedrooms), I don't think you have any other option but to leave NW windows and make them as big as possible e.g.… 7 10484 |