Seed Eco-Home 3 Data Collection

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French Door

Joist + Roof Sheathing Installation

Subfloor Installation

  • 2 hours for install, 3 people working on it more than half the time, 2 people working rest of the time. No sill gasket or clips installed. Screwing in with 2" screws.

Wall Installation Rate

  • Second 2-40 of video shows 22 modules installed (38 seconds). Time Lapse Calculator show 38 seconds at 30 fps playback and 4 second shooting interval means 1:16 hours realtime. 76/22 = about 3.5 minutes per wall module in DSLR cameras - link - https://www.youtube.com/watch?v=FscgKPxgXDw
  • Akaso footage shows 50 seconds - at 3 second interval - 1:15 hour realtime.
  • Major success.

Copying the YouTube Comments in case they disappear

Walls only take 1 hour and 18 minutes (minute 1:52 start for 52 seconds). Moreover - 1:52 - 4:13 shows 2:21 minutes of time lapse for completion up to the 2nd floor subfloor joists. Rim boards included. Time Lapse Calculator (https://www.photopills.com/calculators/timelapse) says that at a 3 second interval and 30 fps playback, the duration of this is 3.5 hours.

That is with multiple teams. One team does 8 modules in front from 1:52 - 2:21 - or 29 seconds at 3 second shooting interval, played at 30 fps. Thus, 7.3 minutes per module per team. Double door counts as 2 modules. More about data collection at https://wiki.opensourceecology.org/wiki/Seed_Eco-Home_3_Data_Collection

This is really great. We have the information and knowledge to build our own homes and your direction here really helps folks to see that reality.

I'm reviewing - 75 minute for 24 modules - with 2 teams - or 75 minutes per 12 modules per team - thus 6.3 minutes per module per team. Note that each active team has 3-4 people actually installing the module. Thus, if we have all the modules prepared ahead of time - 6-8 people can build the entire first floor in 75 minutes. Further, if we divide the build to start from 4 corners, the build time for the first floor becomes 38 minutes - with only 12 people. This is remarkable, indicating (with other build data) extremely rapid build times that allow a house to be finished with a 12 person crew in 5 days, or 500 hours. Our stated goal for the OSE Apprenticeship of early 2023 is one week builds with 24 people, and we should be able to achieve this readily.

To review - the next milestone is 5 days for complete build with interior and exterior, starting from foundation to PV. As we start the 2025 Apprenticeship, the goal is to teach a crew of 24 people to do this. Interior finishing details are formidable as there are simply a lot of steps. Once we train 24 people to do 5 days builds, we estimate that an unskilled crew of 24 could finish an entire 1300 sf 3 bed 2 bath house in 10-15 days. However, with 48 unskilled people (with skilled guidance) - we predict that we can complete the same house in 5 days.

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