Glass is also a very useful cladding panel for the 'opaque' parts of walls. A competent facade designer could easily design a glass clad wall assembly which outperforms more traditional buildings for both summer and winter. Glass also happens to weather well, provide a near perfect substrate for emerging thin film and nano photovoltaic technologies, and can be relatively easily disassembled, repurposed and recycled. In short, the problem is the title of the piece.
All glass facades will actually survive, because glass has other advantages in facades besides being a window. Very interesting article. Panels were mm high and mm wide. We started to measure panel temperatures with IR thermometer, air temperature and the temperature of air in the cavity. Once I have noticed that higher air temperature does not have direct correlation with panel temp. There were days for example cloudy , when air temp was higher and panel temp was lower in relation to the other days, when air temp was lower and panel temp was higher and the sky was clean.
I have realised that the air temperature is only one factor here. Most important is UV factor. Summarizing when the sky is covered, air temp is high there is less UV radiation than next day, which may have lowe air but higher UV radiation. On the other hand I can confirm, as a person working in ventilated facade branch stone, ceramic, concrete…and glass , that the market goes direction to all glass facade if I understand your definition. Great article, David Baggs.
Thanks for writing clearly on such an important topic. Gives us some nice insight into why we are producing such rubbish. Of course overall power consumption would be dramatically improved using a building physics modelling program like the Passive House PHPP. But also your comments about occupant comfort are fascinating. Yesterday I was in a 5 star hotel in Sydney. Early morning temp outside was around 17 degrees.
On the single glazed glass it felt about 45 degrees. Also I am very interested in the fact that human comfort is impacted by differences in temperature. In our passive house I have noticed some things like a a concrete floor which is nothing to do with passive house design has a dramatic cooling effect in summer, due to thermal conductivity of the material. And b the stable temperatures and lack of drafts immediately causes the body and mind to relax. Great piece, David. I know all about this, and from what I can see, no one is talking about it except for you and John Straube. It's a huge mystery to me why architects and engineers aren't more aware of radiant properties of glass, it's not very difficult to understand.
I don't share David's view of the future of sustainable "all glass" buildings. Numerous factors continue to drive this evolution:. Daylight Access — Full height glazing provides much needed natural day light particularly for building with deep floor plates. Future trends — clear photo-voltaic coatings, electro-chromatic, gas-chromatic and thermal-chromatic glazing will become commercially viable. Automatically repost Sourceable's industry coverage in "Realtime" on you website, or within your newsletter. The information you choose to share with us will be protected using industry-standard safeguards.
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- Pros and cons of glass facades - The Economic Times.
- Top 10 Monumental Glass Facade Structures Around the World.
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This Building Saves Energy with a Pioneering Triple-Layer Glass Facade
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Besides, glass makes the area look far more spacious, wider and creates a sense of a 'feel- good' factor with long windows and brightness. It avoids external wastage. Using the right kind of glass reduces energy consumption. Glass is also very low on maintenance costs. A proper monthly cleaning is all what it needs.
However, good labour matters a great deal. Care has to be taken to appoint the right kind of cleaners because certain acids used by common masonry cleaners can dissolve the glass surface and damage it permanently. A very important question that arises today is the eco-friendliness of such glass.
Glass generates a high level of solar radiation that in turn traps heat and raises the temperature. It creates a green house effect, thus leading to higher airconditioning and soaring power bills. Another problem is that birds lose their direction due to the reflection of glass, and injure themselves. The other factor one needs to consider is controlling the acoustic level. Hence, the road noise, parallel construction and so on disturb the occupants in the building. However, the solution to this is that now there are various kinds of glasses available that have good insulation to avoid the heat and sound seeping in.
There are different choices of glass that can make your building eco-friendly. Laminated glass, tempered glass, coated glass; gen-next glasses etc are different forms readily available and are environment friendly too. The author is Chairman, Links Excels in Trade. Click here for all you need to know about filing income tax return this year. Read more on Glass. Click Here. Follow us on. Download et app. Become a member. Mail This Article. My Saved Articles Sign in Sign up. Find this comment offensive? This will alert our moderators to take action Name Reason for reporting: Foul language Slanderous Inciting hatred against a certain community Others.