Monthly Archives: January 2015

The Energy Guy Gets a New Ride …

EG 4

 

OK!  Why a new car?  200K miles on the old one maybe?  Then being able to carry most if not all the equipment I need in one trip?  A moving billboard?

Yes to all of those!  So I had a Party.  Our Derby Chamber of Commerce hosts a Business to Business time once a month from 8 – 9.  Coffee and stuff that is guaranteed to add to my waist line.  They do a Ribbon Cutting when you join.  So I had mine this morning.  Here is the crew that came out for the Ribbon Cutting.EG 5Look closely, those are wooden scissors. Ceremony! So here is the next one with real scissors.EG 2Lots of wonderful people here.  Did they all come for my Ribbon Cutting?  I’d like to think so. This month the sponsor was Nova Care of Derby.

I’d like to thank the Derby Chamber, Mark and his staff Tim and Lindsi for helping out with this party.  I’d also like to thank my Ang’s  –  I had two guests today from Wichita.  Angie Tejeda and Angee MacMurray.  I posted a blog post a few weeks ago about a Twitter Conversation with Angee, take the link. I wrote about Igloo’s and my future plans.  No, I’m not building an Igloo.

Jen and Rick Brown showed up also.  I teach Sunday School with them. Thank You, Jen for the fine photography here.  And Thank You to everyone that came out to my party.  I must also acknowledge the the great folks at Mighty Wraps in Wichita.  Justin and Lori were great to work with during the design and application of the wrap.

If you see my ride around town – please Wave!

Poll: Energy Efficiency is America’s No. 1 Housing Concern

Safety, affordability and privacy – it’s no surprise that these were some of top housing needs identified in a recent national survey of more than 10,000 households. But the No. 1 unmet housing concern, which the Demand Institute that carried out the poll defined as the “satisfaction gap” between what respondents actually have and what they said was important, was not as easily expected: energy efficiency.Insulation

Survey respondents were given a list of 52 housing and community concerns and asked to rank them, on a scale of 1 to 10, by how important they felt the issues were and how much their current home satisfied these needs. The result: 71 percent of U.S. households polled placed a great deal of importance on energy efficiency, but only 35 percent felt their homes were very energy efficient with low monthly utility costs (the respondents making up percentages answered these questions with an 8, 9 or 10 ranking).

To read more continue here

World’s first 3D-printed apartment building constructed in China

A Chinese company has successfully 3D printed a five-storey apartment building and a 1,100 square metre (11,840 sf) villa from a special print material.

3D Printed BuildingWhile architectural firms compete with their designs for 3D-printed dwellings, one company in China has quietly been setting about getting the job done. In March of last year, company WinSun claimed to have printed 10 houses in 24 hours, using a proprietary 3D printer that uses a mixture of ground construction and industrial waste, such as glass and tailings, around a base of quick-drying cement mixed with a special hardening agent.

Now, WinSun has further demonstrated the efficacy of its technology — with a five-storey apartment building and a 1,100 square metre (11,840 square foot) villa, complete with decorative elements inside and out, on display at Suzhou Industrial Park.

Read More for C Net

Who Is Building an Igloo in Wichita?

It all started on Twitter. @AIAWichita @moongodess316 and I had some fun over building an Igloo.

Igloo1

I saw this Tweet and immediately thought of a quote from Dr. Joseph Lstiburek: “The Igloo was the First Passive House.” Joe is an engineer by training and has been working with buildings, insulation and energy use for over 30 years. His Building Science Corporation, based in Massachusetts, conducts research and is one of the best sources of verified information on building energy efficiency in buildings.

So I tweeted back.

Igloo2

What is the difference between a Passive House and a regular house? What is the buzz all about?

Strawbale

When you build a home you can use lots of insulation to reduce the amount of electricity and gas to heat and cool the home.

GSHP Diagram

You can use a lot of high tech equipment to reduce the amount of electricity and gas to heat and cool the home. You can also do both.

PHIUSThe Passive House was developed in Germany, so you see it referred to at times as Passiv Haus.

We know that insulation works and that more insulation works better. As the cost of electric and gas goes up, it makes financial sense to add insulation to a home or business. In 2000, the local cost of Electricity was 8 – 9 cents, the recommended level of attic insulation was R-30. Today the cost of electricity is 12 – 13 cents and the recommended level of insulation is R-49.  Both have increased about 1/3 in 1 years. We also know that air movement, cold drafts, makes people uncomfortable and causes insulation to not work as effectively.

Round Metal TubeThe sources of air entering a home are usually related to corners. Since we like living in buildings that have square corners there are a lot of them in a home. Windows do not usually cause air leakage. How they are installed can cause air leakage. The age or the quality of the window does not seem to matter when installation mistakes occur.

PHIThe primary requirements for a passive ouse certification are based on Energy Usage and creating a structure that needs very little energy for heating and cooling. These standards are effectively summarized with these two limits.

  • Total primary energy (source energy for electricity, etc.) consumption (primary energy for heating, hot water and electricity) must not be more than 120 kWh/m² per year (37900 btu/ft² per year)
  • The building must not leak more air than 0.6 times the house volume per hour (n50 ≤ 0.6 / hour) at 50 Pa (N/m²) as tested by a blower door.

In our Twitter Conversation, Angee McBustee tweeted a question about how is building a igloo in Wichita. Then I responded with the offer to run the blower door test. As you can see from the primary requirements the Blower Door result is very important to a passive house.

Igloo4

How good is a Blower Door Test of 0.6, as required by Passive House? Energy Star New Homes require a Blower Door Test of 5.0 or less. New homes in Wichita routinely test around 4.0. In the blower door testing, lower is better.

For standard construction, I have tested several homes at 1.0. There is one home that I have tested with a lower result. A custom home in Butler County is under construction. They had me do a Blower Door test after it was sheathed. No insulation, no drywall. The test result was 0.62. We were able to find several leaks using biometrics and the infrared camera. That was last September. I returned in December to test it a 2nd time, the results were so low, that I didn’t have the right test equipment to measure the result. I would estimate it to be in the 0.30 range. I now have the equipment to test a home like that.

In February, I have been accepted for training and certification as a Passive House Rater/Verifier. Christine is building the home in Butler County, I want to thank her for the push to obtain this certification.

In the Twitter Conversation, AIA Wichita came back and said they were posting an information tweet.

Thanks to Angee and AIA Wichita for a nice idea for a Blog Post.