Building Progress 1: February to May 2011

Click on images to enlarge.

Our site is in the Sunnyside neighborhood of Portland



Aerial view of site from 2009


Street view of lot (February 12, 2011)


Say "hello!" to our 1500 gallon cistern (before burial)....


Getting ready to pour concrete footings (March 31, 2011) ...


April 9, 2011


April 25, 2011-
Three 1st floor walls are up.  Perlite underslab insulation (6.75" at R value of 3.04 per inch for total R= 20.5 and vapor barrier are in.  On top of this, 4" EPS foam (R of 4.13 per inch for total R= 16.5) followed by 4" concrete slab to go in later.


Oregon Tradeswomen (Lina and Chevy) on the job...



TICS (thermally interrupted custom studs) to avoid thermal bridging...
Click here to watch how to build TICS.


Perlite (volcanic rock product from Oregon) for underslab insulation is used in place of a layer of EPS, reducing the amount of foam used on this project.


Here are the layers in the floor assembly...


Earlier photos from Bart showing perlite over compacted gravel fill (above) followed by 4 inches EPS foam (below).


May 3, 2011- Slab day!
Getting ready for the pour.  PSU temperature sensors marked with red flags.


Rob and Bart at work...


Site of future workshop and back patio


Pouring the main floor...


PSU graduate student Steve Gross collecting concrete samples to take back to the lab.


Steve making sure temperature sensors are installed properly...


More slab...



May 16, 2011
- 1st floor framing

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