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Hemcrete Installation/ LEED Consultation

December 8th, 2009 by admin

Yesterday, the full-on Hemcrete installation was started.  Thanks to the volunteers who continue to come out and shovel hemp in this wet, cold weather!  If you’re interested in volunteering for the Nauhaus Prototype Project, please contact Billy.

Click here to view the entire Nauhaus Prototype Construction Chronology.

Bucket of Hemp

Buckets of Hemp

Custom forms were built out of plywood to supplement the plastic shutters provided by Lime Technology.

Custom forms on Completed Framing

Exterior Bracing at Plywood Forms

Exterior Bracing at Plywood Forms

Custom window forms were built so that the jambs could flare out and let in more light.

Custom window forms were built so that the jambs could flare out and let in more light.

Horizontal form supports are painted orange, as they will be removed after the the Hemcrete is packed in.

Horizontal form supports are painted orange, as they will be removed after the the Hemcrete is packed in.

Matt pours hemp into the mixer.

Matt pours hemp into the mixer.

Nauhaus Team and Volunteers Installing Hemcrete

Nauhaus Team and Volunteers Installing Hemcrete

A volunteer tamps down Hemcrete around the studs to ensure a tight seal.

A volunteer tamps down Hemcrete around the studs to ensure a tight seal.

Sarah Brinker tamps Hemcrete.  At this point, the forms are 4' high because the first lift is completed.

Sarah tamps Hemcrete. At this point, the forms are 4' high because the first 2' layer is completed.

Today, as the Hemcrete installation continued, Amy Musser of Vandemusser Design came out to give us a LEED consultation.  The Prototype is still on track to receive LEED Platinum certification.

Amy Musser, Luly Gonzalez and Chris Cashman discuss LEED.

Amy Musser, Luly Gonzalez and Chris Cashman discuss LEED.

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S P A C E D A N C E

March 9th, 2009 by admin

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The last run of logo variations

February 24th, 2009 by admin

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More Nauhaus Logo Tests

February 20th, 2009 by admin

the one we liked most last time (now that i look at it i realize it’s asymmetrical in the dumbest way:

and then the new ones, in order of conception:

the miami vice version:

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TGB Music Night

February 17th, 2009 by admin

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Solar Stimulus

February 16th, 2009 by admin

From “The Vote Solar Initiative Blog”:

The recovery package will immediately spur job creation along each link in the solar supply chain- from PV panel manufacturers to solar hot water system installers. Serious kudos to our hard-working friends at SEIA who traversed the halls of Congress until the 11th hour, and to all of our members who chimed in online to make their voices heard. For more information on the bill check out SEIA’s website.

Solar provisions in the final economic recovery bill:

Renewable Energy Grants:  Given the economic downturn, many traditional solar project financiers were left without the tax appetite necessary to put the 30 percent solar tax credit to good use. This provision puts solar finance back on track by offering DOE grants as an alternative to the tax credit.  To be eligible for the program, the project must commence construction in 2009 or 2010 and be placed in service by January 1, 2017. Applications must be filed by October 1, 2011.

Repeals Penalty for Municipal Solar Finance Programs: Around the country, cities are implementing innovative finance programs that help residents and businesses go solar without breaking the bank. As the tax code was written, there was some uncertainty as to whether participants in these programs could claim the federal solar tax credit. This provision ensures that businesses and individuals can qualify for the full amount of the solar tax credit, even if projects are financed with local development bonds or other subsidized energy financing.

Loan Guarantee Program: This provision is especially helpful for the development of large-scale solar power plants. It establishes a temporary DOE loan guarantee program for renewable energy and electric power transmission projects.  The program is available for any renewable project that commences construction by September 30, 2011.
The program provides $6 billion in renewable funding.

Manufacturing Investment Credit: Everyone wants manufacturing jobs, and this provision will help attract solar manufacturing facilities to the U.S.  It provides up to $2.3 billion to fund 30 percent investment tax credit for facilities engaged in the manufacture of advanced energy technologies.  Projects must be certified by the Treasury, in consultation with the Secretary of Energy, through competitive bidding.

Remove Limits on Solar Water Heating: This provision gives solar hot water heaters the same treatment of solar panels. It repeals the $2,000 monetary cap, making solar water heating property eligible for the full 30 percent tax credit.

Government Procurement: We are still tracking down details, but there appears to be multi billions of dollar available for the installation of solar on government buildings, military bases and schools.

Source

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What, Thermal Window Shades Again?

February 7th, 2009 by admin

We’ve been around about this a bunch of times, but never really settled on a decision. The question is whether or not these insulated shades perform as advertised. In the last go round, I think we just finally said, “These things are 1/4″ thick, they can’t possibly be adding R-6 in performance” and left it at that. The other thing that always turned me off was that there seemed to be no one really making them. This company seemed to go out of business for a while, but now seems to have retooled and was featured in Building Green. I’m posting this just to have a record in case we want to review these again.

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Grid Efficiency: Some States Have Better Electricity

February 7th, 2009 by admin

RMI just came out with a report on relative efficiency of electrical production per state. Go here and click on a state to see how much it sucks or doesn’t suck, relatively speaking. Interesting and another reason to get off the centralized grid. Based on a survey of industry professionals (i.e. I asked Jeff, Ole, and Dave Holister), a grid-tied PV system most likely side steps this grid inefficiency because the electricity from your PV just goes directly to your non-PV neighbors thus creating a poor person’s distributed microgrid. Jeff, I welcome your criticism of this generalization.

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Hemcrete Discussion

January 28th, 2009 by admin

I think we should start using the blog to discuss certain issues that we are considering. It seems an easierway to keep track of the discussion than email threads. Let’s try it with our topic of the day: Hemcrete

1. I’m wondering if we should consider HC with the interior masonry columns? The columns cold be used to attache interior formwork and the HC could seamlessly go in front of them. The cool thing about this is that, unlike with double stick framing or SIPS, we wouldn’t need any more wood, either framing or sheathing, for the structure, therefore making the masonry column a less expensive upgrade in this constext than the others. I wonder if it would really cost any more than the structural systems that they are typically using with Hemcrete.

2. Matt said today that he’s been using scrap plywood from window openings, etc. as subfloor for attics.  We figured we would need 30 sheets of 1/2 ply or OSB as forms for the JJJ ranch. What about using the forms for subfloor in the attic (Jeff may have already mentioned this possibility to me. Based on Jeff’s loft subfloor estimate in the spreadsheet, that would take about 12 sheets, but we might want to double them up (laid in opossite directions) for more strength. That’s 2/3 of the formwork right there.


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The Foam Hole

January 17th, 2009 by admin

We visited the EcoPanel SIPS factory on Friday.  Things we learned:

  1. 1. R-value is a myth
    2. Don’t drink everything that looks like coffee in a styrofoam cup
    3. It’s warm in there when you stick your finger in the foam hole
  2. 4. Sharks are strange, cruel animals
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