Category Archives: environmental blogs

Energy Efficient Roofs – Paint it white or

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It’s Jam Band Friday – http://www.youtube.com/watch?v=xvYsBlg4QEM

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http://www.professorshouse.com/your-home/environmentally-friendly/energy-efficient-shingles.aspx

Energy Efficient Roof Shingles

Home > Your Home > Environmentally Friendly > Articles > Energy Efficient Roof Shingles

image of energy efficient shinglesThe right roof is essential to designing an environmentally friendly and energy-efficient home. If you’ve got typical shingles or hot asphalt on your roof—as many homeowners do—you could be doing better. Below are a few cutting-edge roofing techniques that can cut your energy costs and make your house greener at the same time.

Use recycled shingles. If you want an environmentally friendly roof, the worst thing you can do is install 15-year, non-recycled shingles. These are among the most disposable building materials, are hardly ever recycled, and contain toxic volatile organic chemicals that evaporate under the heat of the sun. This means that just by sitting under the sun and heating up, your home is releasing toxic chemicals into the air. For a greener option, use recycled asphalt shingles that use reclaimed materials, reducing waste. These shingles often have a 50-year lifespan instead of 15, so you won’t have to replace them as often.

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http://www.youtube.com/watch?v=kilR-4rQS5g

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Consider metal. Metal roofs are more energy-efficient than shingles. Metal roofing is typically made from aluminum, copper, or steel, and you should ensure that your roofing is lead-free. Metal does not have the kind of heat-absorption qualities shingles have, so it will absorb and radiate less heat into your home. In fact, the right color metal will actively reflect sunlight, keeping your home cooler in hot summer months when the sun is most intense. Metal roofing also stands up to the elements better than shingles typically do—it’s the best for rainwater catchment systems, and snow slides off it easily.

Reflective coatings. To make your shingled roof more energy-efficient, brush a reflective coating on. Uncoated shingled roofs typically absorb around 80% of the sunlight that hits them—heating your home in the summer and driving up your air conditioning bill. A coated roof, however, can reflect about 80% of heat—giving you significant energy savings.

Clay and slate. Two natural materials that make excellent green roofing choices, clay and slate are both energy-efficient, can be disposed of without pollution, and are much less toxic than shingles. Corrugated clay tiles encourage air flow on the surface of the roof, keeping the home cool in the summer. However, hail will shatter it, which is why it’s typically only used in warmer climates. Slate is far more durable—it can last up to 100 years with minimal maintenance. Slate can also be reclaimed and recycled.

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http://www.youtube.com/watch?v=9B7YeDmmTFc

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Building-integrated photovoltaics (BIPV). This is a roofing system that’s coated with a film that converts sunlight into electricity—a solar-power coating for your roof. This system uses tiles or shingles, and the electric current flows on the edge of the roof. The tiles look like slate, and can be installed by most roofers—an electrician will also be needed to hook the solar-energy system up to your home’s electrical system. The charge it generates isn’t huge—about 1 kilowatt of energy per 100 square feet of tile

Roof turbines. Companies in the Netherlands, Scotland, and Britain are developing small turbines designed to install on roofs and convert wind power into home electricity. The turbines are typically around six feet across, and are usually mounted on the roof or a pole. Roof turbines feed energy into a converter, which transforms it into electricity for home use. They can typically provide enough power to operate lights, a refrigerator, a television, and a computer—providing significant energy savings. However, the amount of energy an individual house sees will depend on how windy its location is

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More next week.

http://www.youtube.com/watch?v=1EAog6Crv7c

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Global Resource Depletion OR Recycling A Waste Of Time – Which is it

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shhh It’s Jam Band Friday – http://www.youtube.com/watch?v=hntXAO_Rq7c

OK so which is it, are we running out of stuff or not? Is 6 Billion people too many or not? Have we cut down way too may trees or not? I believe these answers are knowable. Are the Ocean’s fished out or not?  Is Global Warming happening? The issue seems to be Price. If Global Warming were happening then carbon would be expensive. But what if price isn’t the issue when capitalists and nations treat resources as if they were “free”.

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http://www.planetthoughts.org/?pg=pt/Whole&qid=3267

Blog item: Recycling? What A Waste.

By Jim Fedako

This fall, school kids across the country will again be taught a chief doctrine in the civic religion: recycle, not only because you fear the police but also because you love the planet. They come home well prepared to be the enforcers of the creed against parents who might inadvertently drop a foil ball into the glass bin or overlook a plastic wrapper in the aluminum bin.

Oh, I used to believe in recycling, and I still believe in the other two R’s: reducing and reusing. However, recycling is a waste of time, money, and ever-scarce resources. What John Tierney wrote in the New York Times nearly 10 years ago is still true: “Recycling may be the most wasteful activity in modern America.”

Reducing and reusing make sense. With no investment in resources, I can place the plastic grocery bag in the bathroom garbage can and save a penny or so for some more-pressing need. Reducing and reusing are free market activities that are profitable investments of time and labor.

Any astute entrepreneur will see the benefit of conserving factors of production. Today, builders construct houses using less wood than similar houses built just 20 years ago. In addition, these houses are built sturdier; for the most part anyway.

The Green’s love for trees did not reduce the amount of wood used in construction; the reduction was simply a reaction to the increasing cost for wood products. Using less wood makes financial sense, and any entrepreneur worth his profit will change his recipe to conserve wood through better design or by substituting less dear materials for wood products.

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http://www.youtube.com/watch?v=pojL_35QlSI&feature=related

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http://www.energybulletin.net/stories/2010-10-20/global-resource-depletion

Published Oct 20 2010 by The Oil Drum: Europe, Archived Oct 20 2010

Global resource depletion

by Ugo Bardi

André Diederen’s recent book on resource depletion

I have been thinking, sometimes, that I could reserve a shelf of my library for those books which have that elusive quality that I could call “modern wisdom”. Books that go beyond the buzz of the media news, the shallowness of politicians’ speech, the hyper-specialization of technical texts. That shelf would contain, first of all, “The Limits to Growth” by Meadows and others; then the books by Jared Diamond, James Lovelock, Konrad Lorenz, Richard Dawkins, Peter Ward and several others that have affected the way I see the world.

I think I’ll never set up such a shelf, I have too many books and too few shelves; many are packed full with three rows of books. But, if I ever were to put these books together, I think that the recent book by André Diederen “Global Resource Depletion” would make a nice addition to the lot.

The subject of resource depletion, of course, is well known to readers of “The Oil Drum”. So well known that it is difficult to think of a book that says something new. Diederen, indeed, succeeds in the task not so much in reason of the details on the availability of mineral commodities that he provides, but for the innovative way he describes our relation to the subject. In other words, Diederen’s book is not a boring list of data; it is a lively discussion on how to deal with the implications of these data. It is a book on the future and how we can prepare for it.

To give you some idea of the flavor of the book, just a quote:

(p. 43) “… it isn’t enough to have large absolute quantities (“the Earth’s crust is so big”) and to have all the technology in place. (p. 33) … we have plenty of water in the Mediterranean or Atlantic Ocean and we have ample proven technologies to desalinate and pipe the water to the desert, so, why isn’t the Sahara desert green yet?”

This is, of course, the crucial point of resource depletion: what counts is cost, not amounts (I plan to use this example in my next talk!). Diederen is an unconventional thinker and he goes deeply into matters that, in some circles would be thought to be unspeakable; for instance (p. 41)

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Price? Really. More next week.

http://www.youtube.com/watch?v=3a9mx1IVZzU&feature=related

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Jetson Green – What a cool site

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Everyonce in awhile you come across a site that is just the bees knees. This would be one.

http://www.jetsongreen.com/2010/10/versatile-origin-prefab-from-blu-homes.html

Versatile Origin Prefab from Blu Homes

By Preston Koerner | October 11, 2010 | topics: Prefab, Residential, Single-family

Blu-homes-origin-haney

Shown is a new installation of three Origin series prefabs by Blu Homes.  Each with a mixture of standard and custom elements, these modules were installed behind a company co-founder’s existing home in Wayland, Massachusetts.  The prefab cluster is used as a photo studio, art studio, and media room and was built with radiant floor heating, cedar sunshades, a roof deck, galvalume siding, heat recovery ventilation, and bamboo flooring.

Blu-homes-origin-haney-sunshades

Anne Haney, spouse of Blu Homes co-founder Bill Haney, said, “I adore my new home studio – it’s modern, airy and bright. I no longer have to commute, pay rent, and we both get to see more of our kids,” according to a statement.

These completed Origin modules cost about $100,000 each, though the newly revamped Origin series starts from $82,000 for a shell and from $109,000 for a full home.

Origin is available in 18’x24′, 18×36′, and 18×48′ plans, with up to one bathroom and two bedrooms.  Blu also offers flat, shed, or gable roof lines.

Standard features include energy-efficient recessed lighting, Energy Star appliances, efficient ventilation, low-flow fixtures, and cement board siding.  Custom options include LED lighting, cedar v-groove siding, FSC certified floors, and cedar screens.

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More tomorrow.

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The Massive Hungarian Toxic Spill And ME – You may wonder

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I put off posting about the nasty and unconscionable toxic spill in Hungary because I felt a little guilty. I said in an earlier post that I was kinda bored and having a little difficulty posting because after the Gulf Spew and Russia caught on fire talking about more down to earth topics and residential energy issues was…well…not exciting. Then I said something like we could always wish for another disaster. So then the Hungary Dam Failure happened and I was …ahhh … sheepish. But today and tomorrow we shall make amends.

http://www.peopleandplanet.net/?lid=29373&section=37&topic=23

‘Hungary must lead drive to defuse East Europe’s toxic time bombs’

Posted: 12 October 2010

As efforts continue to prevent a further spill from a toxic reservoir near the Danube, WWF has called on Hungary, as president-elect of the EU, to mount a major push to reduce the large stockpiles of poorly maintained mining wastes across eastern Europe.

The call from WWF comes as emergency operations continue to head off an increasing risk of further large scale flows of toxic aluminium processing sludge from the broken reservoir above the town of Kolontàr. The initial breach of the reservoir walls killed at least seven, inundated six villages and sent a caustic alkaline plume towards the Danube.

Toxic sludge, Hungary
Kolontar, Hungary, inundated by the tide of toxic sludge now heading down tributaries of the Danube. Photo credit: WWF Hungary

WWF has issued a photograph showing that the reservoir wall was clearly degraded and leaking more than three months before the disaster. Work has nearly finished on a secondary dyke, 1500 m long, 30 m wide and 8 m high through and alongside Kolontàr, to reduce damage from any further spills.

“The human and ecological disaster at Kolontàr – the greatest chemical disaster in Hungary’s history – has made clear the need to re-assess current regulation of such mine waste sites and begs the question how many other ticking time bombs there are in Central and Eastern Europe,” said Gabor Figeczky, interim CEO of WWF-Hungary.

Mining and mineral processing tailings dams – presumably including the Kolontàr reservoir – were listed as a priority concerns in a 2004 comprehensive study on mainly eastern European hazardous and toxic waste sites from the European Commission’s Joint Research Center.

Overall, however, environmetnal pressure groups say that information on sites,and on the risks they present, is extremely poor. WWF released a list of recent Danube releases of toxic wastes and some of the major hazard areas last week, “but it is by no means provides the kind of exhaustive analysis that is needed,” said Andreas Beckmann, Director of WWF’s Danube-Carpathian Programme.

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More tomorrow.

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Buy Solar With Your Family And Friends – Great way to bust the cost of solar energy

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http://www.thedailygreen.com/environmental-news/latest/solar-community-garden

Colorado’s Roaring Fork Valley is sowing some palatable solar insights in the communities of Carbondale, Aspen, Vail and Eagle this weekend. The region’s Clean Energy Collective (CEC) is showcasing the nation’s first community-owned solar garden, the Mid-Valley solar array.

Sited on otherwise unusable land owned by the Mid-Valley Metropolitan District, the Mid-Valley solar array features 340 solar modules that collectively boast 77.7 kW of available renewable energy production capacity to offset the energy demands of those in neighboring communities who buy into the program.

Colorado is on the front lines of legislation and execution of the ground-breaking solar farm model, which began delivering power to members in El Jebel, Colorado in August. The Clean Energy Collective is a member-owned cooperative venture that builds, operates and maintains large-scale community-based facilities that deliver clean, renewable energy to community-based owner/members within specific utility service territories.

Both year-round and seasonal residents of the Roaring Fork Valley are qualified to buy individual portions of the array for as little as $725 per panel, or $3.15 per kW. Local utility coop Holy Cross Energy will then credit members’ utility bills directly each month at the rate of $0.11/kWh. Compensation is commensurate with how many solar modules each member owns in the community garden array. The owners of this community owned solar garden have essentially turned grey dirt into pay dirt as they create a more sustainable energy future.

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More tomorrow.
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White House Goes Solar – Finally after they refused earlier efforts

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There answer in September was NO!

http://green.blogs.nytimes.com/2010/09/10/white-house-spurns-solar-panel/

September 10, 2010, 11:54 am

White House Spurns Solar Panel

By JOHN M. BRODER

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The answer in October is YES! Wonder what changed?

http://thehill.com/blogs/e2-wire/677-e2-wire/122559-solar-panels-heading-to-white-house-roof

White House roof to get solar panels

By Ben Geman – 10/05/10 10:06 AM ET

The Obama administration on Tuesday announced plans to install solar panels on the White House roof.

“This project reflects President Obama’s strong commitment to U.S. leadership in solar energy and the jobs it will create here at home,” said Energy Secretary Steven Chu in a statement. “Deploying solar energy technologies across the country will help America lead the global economy for years to come.”

The action highlights Obama’s support for low-carbon energy at a time when environmentalists are smarting from the collapse of climate legislation — a bill that was not the top White House priority.

Chu and White House Council on Environmental Quality Chairwoman Nancy Sutley announced the plan Tuesday at CEQ’s GreenGov symposium hosted by George Washington University.

The Energy Department-led project will install two White House solar systems — one that converts sunlight into electricity, and a solar hot water heater for the White House residence.

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More tomorrow

Living Roofs Are Possible Even On Smaller Roofs – Try it on an outbuilding

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http://earthbagbuilding.wordpress.com/2010/07/12/alternative-waterproof-membranes-for-living-roofs/

Alternative Waterproof Membranes for Living Roofs

July 12, 2010 by Owen Geiger

There’s growing interest in living roofs or green roofs. The difficulty is deciding on the waterproof membrane. Rubber pond liner (EPDM) is the most waterproof and durable material, and the most common choice due to proven performance, but it’s also very expensive and made from nasty petro chemicals.

Living roof at Heartwood HomesteadsLiving roof at Heartwood Homesteads

I think a number of less toxic, more affordable materials are possible, including recycled materials in good condition. One reader suggested pool covers. Heavy duty trucker tarps are another option. You could add 6 mil poly (plastic sheeting) underneath and/or above these other materials for extra moisture protection.

For my dome, I used 2-1/2 layers of 6 mil black poly and have had no leaks so far after about three years in a rainy climate. (The half layer is a small piece on the very top.) You need to cover 6 mil poly carefully to avoid punctures. Some use old carpet or cardboard against it while adding soil. (Screen out rocks.) In our case, we simply packed soil on the plastic, starting at the bottom and working up, with no protective cardboard, etc.

Recycled vinyl billboards are another possibility, but I wouldn’t use them because of the health hazards of leaching chemicals into the soil around the house.

Roof pitch is another consideration. Steep roofs shed water faster and are less prone to leaks. But you need to strike the right balance or top soil and nutrients will wash away, and your roof will dry out too quickly.

Another consideration is the value of the structure. It’s no big deal experimenting with alternative waterproof membranes on a simple $2,000 guesthouse. But you might want to use better materials or multiple layers on expensive homes.

Photo credit: Heartwood Homesteads

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More Tomorrow.

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Illinois Solar Tour Oct. 3RD – Wish I could give you more

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But the links don’t work so well. The place in Springfield is the FitClub Gym.

http://www.illinoissolar.org/

10/2/10:
The Illinois Solar Energy Association (ISEA) is hosting a Solar Tour where home owners and businesses across the state welcome visitors to explore how to use renewable energy systems to reduce utility bills while minimizing the environmental impact of their buildings. If you’re interested in learning more about the practical application of solar power check out the ISEA website for locations and more information.

Solar Tour Website:http://tour.illinoissolar.org/

To find the location of an open house near you click here:http://tour.illinoissolar.org/directory-of-buildings

If you have questions contact Lesley McCain atLesley.McCain@CommunityEnergyInc.com

Illinois Solar Tour
October 2, 2010
10 am – 3 pm
FREE
Interested in renewable energy and have questions?  Then this is the place to start learning.

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More next week.

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Louisiana Environmental Action Network’s Fundraiser Tomorrow

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I hope everyone who can go will go…

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Please join us at a special screening of the film:

SOLA Louisiana Water Stories
with
filmmaker Jon Bowermaster

and a


Louisiana Art Show
featuring:

Rhea Gary
CC Lockwood
Jeffrey Dubinsky
Jerry Moran
Kyle Jeffrey
Natalie Clay

Stefan Andermann

…and more!


First 50 people will receive a FREE DVD of a Jon Bowermaster film!

and
Live Louisiana Music
too!

at the
Manship Theater


September 24, 2010


Gallery opens at 6:00 p.m. – Film starts at 7:00 p.m.

SOLA, Louisiana Water Stories

The event will take place on September 24, 2010 at 6:00 p.m. at the Manship Theater in Baton Rouge. For more information go to:

SaveOurGulf.orgVisit SaveOurGulf.org to get more information about the BP Deepwater Horizon disaster from Waterkeeper organizations across the Gulf Coast and donate to Save Our Gulf!

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More Tomorrow

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Foam Roofs – They’re better than tar and gravel

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This is so cool in so many ways. No heat absorption. High insulation values. Walkable. Why would anybody do anything else.

http://www.getwithgreen.com/2007/11/11/roofing-looking-for-an-eco-friendly-alternative-for-a-flat-roof/

ROOFING: Looking for an eco-friendly alternative for a flat roof?

November 11 2007

Do you have a flat roof, or an area of your roof that is flat?   Some of us do, and when you talk to almost any roofer they will give you standard options such as tar and gravel, or large asphalt sheets.  Both of which are not good for decreasing urban heat.   Well there is an option that is a bit greener.  Foam.  Yes a foam roof.

Cedric, and his wife Mai, in Redwood Shores, CA, recently installed their foam roof as an alternative to tar and gravel.  Using a product from Sierra Spray Foam Roofing the couple simply removed the gravel from their existing room, and applied the foam product from Sierra Spray.

spray foam green roof spray foam green roof alternative
OLD ROOF                                                              NEW ROOF

GetWithGreen.com does not know the chemical breakdown (environmental friendliness) of the actual foam contents itself, or its sustainability, but we like the other eco-friendly positives that Cedric and Mai talk about in their blog:

  • We didn?t need to rip out the existing roof, just to remove the gravel
  • The roof is white so it is a ?cool roof?, keeping our house cooler in summer and avoiding the ?urban heating? effect of dark roofs
  • The foam material provides both water-protection and insulation, thus improving the energy efficiency of our house
  • In 10 to 15 years when the roof needs to be redone, we simply need to add another layer of foam to give it another 10 to 15 years of life!

Cedric also tells GetWithGreen.com that the insulation value of the foam roof is extremely high because there is no air circulation at all — the whole roof is one piece.  The effective insulation of this roof is much higher than equivalent R value using traditional technologies that let some air circulate at the junctions between the insulation boards.   The roof can also be walked on.

Pricing:  $6 per square foot

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More tomorrow.

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