Jim Gunshinan's Blog Posts Tagged 'climate' (2)

New Label for Things Made from Wind Energy

I am composing this blog post on a computer that was likely assembled in a factory that runs on electricity made from coal. The aluminum for the case and other parts of the computer probably came from a smelter powered by natural gas. The electricity powering the computer here in California could come from a combination… Continue

Added by Jim Gunshinan on February 10, 2011 at 6:30pm — No Comments

Goodbye to the Light Bulb We All Know and Love

You know which light bulb I mean. It’s the one you’ve burned your hands on when trying to unscrew it too soon after it’s been turned off. It’s the one you put in the lamp in your living room to read by in your comfortable chair; the one you use to light the stairways at night. It’s the 100-watt incandescent that uses… Continue

Added by Jim Gunshinan on January 14, 2011 at 2:00pm — No Comments

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How would you insulate this roof?

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Psychrometric Chart Training

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Dirty solar panels

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Brad Cook replied to David Butler's discussion How would you insulate this roof?
"Bill, you just posted a number of responses in different areas of the thread. I will try to respond…"
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Bill Spikowski replied to David Butler's discussion How would you insulate this roof?
"In an earlier response, I noted that we COULD haul drinking water and use the water we collect off…"
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Bill Spikowski replied to David Butler's discussion How would you insulate this roof?
"As to the elevations on the cupola – the existing windows up there might survive adding…"
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Bill Spikowski replied to David Butler's discussion How would you insulate this roof?
"The purlins are 1 3/4" thick. I believe the top chord of the trusses are 10" deep (but…"
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Bill Spikowski replied to David Butler's discussion How would you insulate this roof?
"The cupola windows are the only place there would be a problem if 4" of foam were added above…"
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Bill Spikowski replied to David Butler's discussion How would you insulate this roof?
"The purlins are 1 3/4" thick. I don’t know about the fire dangers of PIC or other foams.…"
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