We're Famous (Just a Little) 
It's been a crazy week, and the project is getting a lot of attention. People continue to talk about the "new dome in Vermillion." And now we're starting to get a little press:


Thanks to Judy Zwolak of the Argus Leader newspaper in Sioux Falls for talking with us and writing up a nice article on the project. You can read it for yourself here.



We're very grateful to KTIV , the most popular T.V. channel in Sioux City, for covering Trinity Dome on their news broadcast. Melanie Peterson did a great job, and was a pleasure to talk with.

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Exterior Finish Plans 
We've had lots of folks ask how the exterior will be finished. Since the airform can last ten+ years without coating, there's no rush to decide -- but we're currently leaning towards Permacrete or an elastomeric stucco -- both very low maintenance.

There are some other options at Monolithic we hope to evaluate in person this winter.

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Coating and Backfilling the Footing 
Once the footing foam cured, Tom from Weather Guard returned to add a UV protectant on it. This will keep the exposed portion of the foam from breaking down in the sun.


Here you can see the coated foam up close. You can also see where the sprayed foam overlaps and seals the original sheet foam used under the entire building.


In order to further protect the foam round the perimeter of the house, we used the new skid steer to backfill around the footing. This will protect the foam for now, and sets the stage for our final landscaping plans due next spring.


While we were at it, we prepared to repair the front sidewalk. It was pretty torn up during the sewer line installation. And since lots of college kids walk past each day, we thought it would be a good way to practice running the Monlithic Integrator cement mixer before the snow comes.

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Rebar, Rebar, Rebar! 
The biggest task in the process so far is cutting, bending and hanging rebar according to the engineering schedule. It's a time consuming, and the overhead work is tough.


Trinity Dome calls for #3 bars every 12" on center at the base of the dome tapering to 10" on center towards the top.


We also needed to add double #5 bars called for around each opening and across both saddles. The big bars are quite chore to work with.


Once the rebar was in place, the guys from Todd's Electric came and installed all the boxes and conduit needed on the exterior walls. They made quick work of it and wrapped up in a single day.

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Foam and Stickers 
After priming the entire inside with a special "sticky paint", the dome was ready to foam.


Tom from Weather Guard Urethane in Yankton came over and sprayed the first few layers of foam. After spraying the first 1.5", he wrapped things up for the evening.


Between the two days of foaming, the rebar stickers were placed throughout the dome. The stickers are essentially wire tires attached to barbed plates that hold onto the foam. Once installed, Weatherguard came back and finished the foam for a total of 3".


Then Tom sprayed the footing with 3" from the outside. This completes the thermal break for the shallow footing and makes sure the radiant floor heating directs it's energy inward.

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