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Owned by Alex

Cob & Natural Building School

1.6k members • $10/month

Learn how to build your own natural, non-toxic house with cob and straw-clay. Save money, live debt-free, and be healthy!

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127 contributions to Cob & Natural Building School
Sculpting with COB
Using the slip form method, can you sculpt on the cob walls after you take the forms off?
1 like • 9d
Yes, but it will depend when in the drying process you remove the forms. You can take the forms off the newly packed cob after just a few days of drying, and it'll be easy to sculpt things into/onto the cob wall at that point. The only downside here is that you'll need to wait probably a few weeks for that layer to fully dry before putting the forms back on top to build the walls higher.
Welcome! Start Here.
This is the Cob and Natural Building School. A community of people interesting in building natural, healthy homes. We teach everyone how to build their own cob home using traditional and modern techniques. Step 1: Comment Below! - Who you are - What your building goals are - What’s your biggest bottleneck right now? 😩 Step 2: Go through the Cob Building Basics Course! See START HERE - COB BUILDING BASICS
0 likes • Mar 26
@Vani Wadhwa Exciting! I hope you get a great piece of land. When I got mine piece, it completely changed my life for the better!
1 like • 14d
@Saidah Haye Welcome, Saidah!
Passive Cooling - A Cheap and Effective Way to Cool Your Home
A student shared this video with me. Would you install a cooling system like this if you could?
2 likes • 25d
@Jj Vee Yeah, no code approval is also a big benefit to this.
Tadelakt?
Anyone here really good at tadelakt? I just joined and wanted more info about that subject.
2 likes • Mar 24
@N P Kremer Pigments is also one of the best suppliers for non-toxic, natural pigments.
0 likes • 29d
@Shawn Na Yes, my first instinct looking at that is a lack of aggregate. Just try upping the amount of aggregate and it should fix.
1 like • Apr 7
@N P Here's a good instructional video for the brick herringbone pattern: https://www.youtube.com/watch?v=P5p1FBH77X4 I learned brick building mostly from watching Youtube and practicing it on projects.
1 like • 30d
@N P It is a great video he made. I actually saved this one a few years back and used it this past Fall as instruction when I built my greenhouse.
1-10 of 127
Alex Sumerall
6
494points to level up
@alex-sumerall-5026
Professional cob house builder and instructor at This Cob House. I teach people how to build their own natural earthen homes.

Active 3d ago
Joined Jan 30, 2025
Greeneville, Tennessee
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