Seed Home v2 Conceptual Design

Possible Shapes

________________________________

[_______________________________________ edit]

General Design Concept

• Based on Seed Eco-Home, Open Building Institute modules
• Grow home - expands as needed
• Helical pier foundation preferred
• Modular - prebuilt modules allow for weekend build, and then full build in 1 week with 2 people
• Land is not included
• Includes biodigester and PV options for off-grid operation
  • Also see Onsite Power Generation and Storage-To-Grid
  • Roof area and all that will aid in calculations

Wall Interface

Hi ________,

We are taking the Seed Eco-Home to product release next year. We are doing a major campaign with a goal of getting 2000 built over 2 years. The promise is a 1000 sf home for $50k that you can build with a friend in one week. That's a significant offer, and we think we can do it. The trick is: people build and stash modules, then have a week-long build with, at minimum, one other person.

There is one outstanding issue that we are negotiating: the joint between panels. It is critical - as it's what allows all the walls to be done, from prepared panels - in about 4 hours for a 1000 sf house. We used tongue-and groove exterior panels in our last build, and build the walls in less than a day, including building panels. You can see more pictures of the stellar product after 4 years at https://docs.google.com/presentation/d/1zKOMjNU4qP_xndJ1r5LLmJLNujjfy8LPEyflKgELZWM/edit#slide=id.g5c3be0ce2d_1_28

That is 1400 sf. We're planning on 1000 sf and flat roof for the product release.

For the product release, we'll use plain exterior treated plywood panels to simplify the joint. Please take a look at the doc and comment on - whether the 2 routes proposed can be negotiated through codes and existing inspection schedules. Which one would you suggest? Do you have another solution? Would love your insight, and also your help in the product release. We're planning a large scale collaborative design where we publish an open enterprise model. We plan on training 100 entrepreneurs to do the builds, and a number of one week on-site training for owner-builders where we build an entire house in each event. So essentially, really taking it to prime time - it's all working and we want to solve housing as promised.

Thanks, Marcin

Jessica Leete

Marcin, This is exciting... I can imagine this system developed with different materials for application in different contexts.

On the wall module interface, in the second image it should show exterior sheathing, then weather barrier, then siding. The weather barrier goes outside of the sheathing. It could be that the module does not include the weather barrier and siding- this would be a more historic approach. Similar to stress skin panels that are plywood and insulation- no studs thus decreased temperature bridge issues. See attached images. The blk and wh from one of Harry's first projects. The first solution could be useful for improved structure. How are the panels and framing connected? Would be interesting if these 1000sqft house modules could be joined in a larger structure. The second likely would not work with building codes but there is a newer system that uses a ceramic coating on the plywood sheathing as the weather barrier and a tape at the joints. I am sure they had to go through all kinds of testing to get this to pass codes.https://www.huberwood.com/zip-system

What are the goals of the prefabrication part other than for a handful of people to be able to raise it in a week?

Dan

See Feedback on Inspection Schedule