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Green Home Improvement: What's Next
Posted by Philip Higgs on May 8, 2007 - 9:27am.

Folks, I know what you're thinking. All this talk of solar power, I must have gone out and slapped a few rows of PV panels on my roof and am now surfing the Internets and cruising cable TV using only the glorious power of the sun.

Not really. It's been raining like a plague here in Boulder, making my main project of the week pulling the innumerable weeds that are popping up out of any spare patch of dirt on our property. (Don't worry, I'm composting the little mothers.) It's all very odd, like I went to sleep in Boulder and woke up in Seattle. The sun has been largely absent lately.

All of which has given me more time to ponder the next steps. I'm still waiting for my solar estimate (should be here by Thursday), and my home energy audit isn't scheduled until next week. But rather than go back outside with the Weed Weasel, I'll offer up this list of what I'd like to get done before summer's end. This is the real list, now, not to be confused with the Pipe Dream Projects I discussed a while back. Really. If I don't get through this list by August 1, I want y'all to come out here and rough me up something awful, pelt me with chemically treated sod or something.

#1 Get efficient: replace dying incandescent bulbs with compact fluorescents; use kill switches or power strips for phantom loads like stereos and the cable box; buy a Kill-A-Watt to see which appliances are draining the most energy, so I know which ones to replace first when the time comes. (We've got two full-size and two half-size refrigerators on the property, one of which is about 20 years old; those things suck electricity like an unprintable metaphor.)

#2 Insulate the crawlspace. We've got a maze of hot water pipes zipping through our crawlspace, very few of which are insulated, meaning those pipes spend an awful lot of time uselessly heating the crawlspace. (Well, I shouldn't say uselessly. I'm sure the spiders and mice appreciate the warmth.) The insulation that is down there is from 1977, so the goal is to junk it all and replace it. The easiest option: Reflectix, which is a thin radiant barrier - basically a roll of bubble wrap sheathed in foil. It comes in giant rolls, and you just unroll it and staple it to the bottom of your floor joists. The foil reflects up to 97 percent of any bleeding heat from our radiant heating pipes and hot water pipes back up to the floor instead of letting it pool in the crawlspace. (The mice might be mad, but they can snuggle with the spiders for warmth.)

#3 Insulate the foundation. Bordering the crawlspace is, of course, our house's concrete foundation. In winter, that concrete absorbs heat from our house and transfers it to the surrounding freezing ground. I have sheets and sheets of rigid foam insulation (reclaimed from another eternally ongoing project, rebuilding the 400-square-foot work studio in the backyard, which I'll be talking about soon); I want to line the aboveground concrete with two inches of foam to keep that cold earth at bay.

#4 Insulate the attic. We have about two-thirds as much insulation as I'd like in the attic (as I've mentioned, insulating your attic is one of the cheapest, quickest ways of reducing your energy use), so I'd like to up that significantly. But before I get to that, I'd really like to put a radiant barrier on the rafters up there. A typical asphalt roof doesn't do much to protect against the onslaught of summertime heat. Heat moves in all directions: as the sun hits your roof, heat will migrate from the tiles into your attic, where the air can get heated to 150 degrees. One way to stop that thermal transfer is with a layer of Reflectix on the rafters to bounce heat back upwards. In the wintertime, that same barrier reflects heat rising from your house back downwards. And Reflectix is decently cheap, like fifty cents a square foot.

#5 Don't forget to check the weekly specials at Liquormart. This week: Six bucks for a sixer of (locally produced) Left Hand!



<em>cthomaspromise</em>'s picture
I am with you neighbor.
by cthomaspromise on May 8, 2007 - 12:39pm

Hey Philip. We have had some crappy weather lately, but there is nothing but sunshine and 70 degree temperatures for the forecast.

Things are going to be getting green now. Speaking of which, I am the wind powered distributor for Denver and Boulder counties, so if you are looking for a true way to reduce or eliminate your electric bill, I can help in about two weeks when we get a new shipment in. These units are about the size of a satellite dish, and can produce up to 2600 watts. The unit comes with a battery and a DC converter, along with 60 ft of cable. It can be plugged into a new panel at your incoming power, and become your primary source to run your home. Get in touch at 303-316-0245 if you are interested.

 

Christopher E. Thomas President/CEO

C.Thomas Promsie, Inc.

www.CThomasPromise.com


<em>phiggs</em>'s picture
acreage
by phiggs on May 14, 2007 - 6:01pm
Don't you need significant land space to put up a turbine?
<em>Wendy_B.</em>'s picture
J/K
by Wendy_B. on May 8, 2007 - 4:22pm

Woah - you haven't changed your lightbulbs yet?!

;-)

 

I checked out the Left Hand site. JuJu Ginger? Yum!


<em>phiggs</em>'s picture
eh
by phiggs on May 9, 2007 - 7:54pm
Left Hand is nice, but the the real action is Dale's Pale Ale, brewed up in Lyons. My God, it's like eating a meal. And it comes in cans, too -- less weight to ship!

<em>Wendy_B.</em>'s picture
Home brewin'
by Wendy_B. on May 9, 2007 - 8:40pm
My husband started brewing his own this year, and in addition to always having good beer on hand (better than store bought, imo) we've reduced our recycling, because he reuses the bottles. It's nice to not have to store and then cart two weeks' worth of bottles to the curb.
<em>phiggs</em>'s picture
nice!
by phiggs on May 9, 2007 - 9:08pm

I used to brew my own, back in the day. Back in high school, actually. To my parents, for some reason, making it myself made it OK for me to drink it as well. (Budweiser no! Philschlinxks Lager ja!) I once tried to make a "flavored" beer by chopping up a bunch of green apples and letting them ferment with the brew. When it was done, we loaded up a case of it in the back of my pickup and drove for 13 hours -- in the summer -- to Austin. First thing we did when we got there, of course, was slug down a few bottles.

I don't think we stopped hallucinating for days. I called that blend "White Jesus."


<em>dunecitymike</em>'s picture
Insulating the attic
by dunecitymike on May 11, 2007 - 8:25pm

I wouldn't hurry to insulate the attic with Reflectrix to redirect the heat up. The mineralized asphalt roofing material is sensitive to heat, and it sounds to me your plan is to heat it more. Excessive heat will dry it out allowing it to crack, break down, leak, and need replacement sooner. The stuff isn't too environment-friendly; a fellow here in Oregon tried recycling by turning it into a mulch, and the highway department even tried it until they figured out it contained a lot of nasty, carcinogenic type stuff. Better to ventilate the dickens out of the attic and insulate heavily between the ceiling joists. Keep the roofing cool and you'll keep it longer.


<em>phiggs</em>'s picture
interesting
by phiggs on May 14, 2007 - 6:04pm

Where did you hear about the toxicity of Reflectix? I'd assumed it was just plastic bubble wrap and foil.

As for the roof, would adding the Reflectix really "double up" the heat to the roof itself? Seems to me that the radiation is already hitting the shingles. Please to inform more!


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