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Interlock House

Sunspace From The Inside

By Tim Lentz, 2009-07-20 13:23:05

NanaWall sunspace doors

As promised, here is another view of the NanaWall doors.  In this configuration, the doors are creating the sunspace for winter heat collection.  The floor in the sunspace is cement board which has some fairly good thermal storage properties.  On sunny winter days the air and floor in the sunspace should retain enough heat that vents (above the doors, not it photo) can be opened at night to allow the heated air to flow into the living space.

Long Time No Blog

By Tim Lentz, 2009-07-20 13:18:50

Aaron and the NanaWall installers...and the NanaWall doors

Hi everyone, sorry that I've been so bad about posting photos over the last week or two.  A lot of progress has been made since my last post and I hope you've all been keeping an eye on the webcam to see what's happening.  The most obvious addition has been the NanaWall doors that make up the sunspace.  In this photo we see Aaron and the guys from City Glass testing out the exterior glass doors.  These sliding doors allow the occupants of the house to change the configuration of the sunspace to suit their seasonal needs.  It can be a heat collecting greenhouse in the winter or a recessed porch in the summer.  The doors look big and hefty but are surprisingly easy to open and close.  I'll post another photo of these from the inside too.

Also, according to the lack of reflection in the left doors, I'm apparently a vampire.


Electrical Installation: Fighting Delays

By Tim Lentz, 2009-07-06 11:37:33

Square D load center mounted in a partially dismantled wall

The electrical installation is progressing but it is at a much slower rate than we had planned.  We had at least three days of delays last week ranging from dead batteries in tools to service calls pulling away our contractor, Kevin, to another construction crew (not one of ours) knocking out power to the entire area.  That's ok though, we still managed to get some things installed and planned.  As the photo shows, the load center has been installed with a little creative wall deconstruction.  Elsewhere in the house, most of the receptacle boxes have been attached and some wiring has been pulled.  I wish I could take some credit for the work that we've gotten done, but in reality all I've done is screw on the receptacle boxes and made sure they were level, Kevin has done the rest.

Funny side story: On the day when the whole business park lost power, Kevin showed up in his Thompson Electric truck to meet me at the house. While he was waiting for me to arrive he was wrongly accused by at least one building owner of being the cause of the electrical outage.  He was a good sport about it though and went to check the phase voltage for the man anyway.

Footpads in Place

By Tim Lentz, 2009-07-06 11:16:53

House, cinder blocks, concrete, asphalt

Looks like the construction crew got the concrete footpads installed under the house during the six days that it took me to take some more photos.  Sturdy.

Major sponsors Iowa State University U.S. Department of Energy Solar Decathlon U.S. Department of Energy National Renewable Energy Laboratory