Are buildings with solid glass exteriors harder to heat and cool, or no because the glass can be tinted and double painted? If they are harder to heat and cool, why are so many buildings built like that today? Can you make a building look as if it has a glass glaze but actually have the inside walls not be walls of windows???
Glass has a lower R value than say an insulated wall but generally you have a window there anyways so it is portion of the wall that is more insulated versus say curtain wall.
Many towers are build like that because of:
1. architectural look/style
2. design standards
3. precedent of its competing towers
4. speed of construction
"Can you make a building look as if it has a glass glaze but actually have the inside walls not be walls of windows???"
of course, you can do anything. Remember that a large portion of those "windows" are not open usable space behind it... but slab, HVAC spacing etc.
You can do amazing buildings without curtain wall though, look at gems like the empire state, chrysler etc.
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"The destructive effects of automobiles are much less a cause than a symptom of our incompetence at city building" - Jane Jacobs 1961ish
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"The destructive effects of automobiles are much less a cause than a symptom of our incompetence at city building" - Jane Jacobs 1961ish
You will be lucky if you have an R Value of 5 with a thermally broken Curtain wall or Unitized Panel System... At the Slab, you have an Insulated Galvanized Back-Pan with a Glass Panel, Single Glazied Tempered Spandel, with no insulating properties, but does generate a lot of heat with the radiant heat of the sun...anyway....don't be fooled into thinking you will have any kind of efficientcy with R values with window design....you get temp defelection that ultimately is controlled with mechanical heating systems inside....Yes, we would like to look outside of the buildings we inhabit...
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"The destructive effects of automobiles are much less a cause than a symptom of our incompetence at city building" - Jane Jacobs 1961ish
A material’s R-value is the measure of its resistance to heat flow. The way it works is simple: the higher the R-value, the more the material insulates.
__________________
"The destructive effects of automobiles are much less a cause than a symptom of our incompetence at city building" - Jane Jacobs 1961ish
You will be lucky if you have an R Value of 5 with a thermally broken Curtain wall or Unitized Panel System... At the Slab, you have an Insulated Galvanized Back-Pan with a Glass Panel, Single Glazied Tempered Spandel, with no insulating properties, but does generate a lot of heat with the radiant heat of the sun...anyway....don't be fooled into thinking you will have any kind of efficientcy with R values with window design....you get temp defelection that ultimately is controlled with mechanical heating systems inside....Yes, we would like to look outside of the buildings we inhabit...
__________________
"The destructive effects of automobiles are much less a cause than a symptom of our incompetence at city building" - Jane Jacobs 1961ish
All I know is that almost all the green buildings I've seen in photos are glassy (and no they are not in all Northern Europe). Take for example the new Bank of America Tower in NY. It is glassy and was named the greenest skyscraper in the world. It is said to have glass that minimizes solar heat gain while maximizing daytime light. And look what this says: http://www.visionwall.com/Html%20Fil...esbenefits.htm
glass buildings can do some things very well and other things not as well, but overall it is a very good material (done right and paired with a good envelope) for most buildings.
__________________
"The destructive effects of automobiles are much less a cause than a symptom of our incompetence at city building" - Jane Jacobs 1961ish
You could build a square box with no windows and 4 feet of insulation...sure it would high a high R value and be warm, but would you want to work there?
Glass has a low R value and thermal issues for comfort control, but it provides natural light, potential for operable windows/ventilation, and architecturally is hot.
__________________
"The destructive effects of automobiles are much less a cause than a symptom of our incompetence at city building" - Jane Jacobs 1961ish
^not at all... it is inferior to say an EIFS for R value but makes up for it in many other ways.
do some research dog
__________________
"The destructive effects of automobiles are much less a cause than a symptom of our incompetence at city building" - Jane Jacobs 1961ish