Home Real Estate Natural Building with Cob Inside My Stone Tiny House in Portugal – Part 1

Natural Building with Cob Inside My Stone Tiny House in Portugal – Part 1

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Natural Building with Cob Inside My Stone Tiny House in Portugal – Part 1

Hi all! I’ve finally started back up with natural building inside my tiny house stone barn conversion in Central Portugal and I’m very excited about it! This is Part 1 of a two part video but Part 2 will be out tomorrow at 5pm. No need to wait a whole week… yay!

I’m currently working on a small wall beside my wood stove that will act as a heat barrier, a shelf, and will become part of a wall for my future closet. The wall will be made from cob (a mixture of clay, sand, straw, and water) which is my favourite building material and I’m very happy to be able to show you the process!

I’m super interested in building with natural materials like clay, stone, wood, lime, and more and I hope this video (and eventually other videos on this channel) highlights why they’re so amazing. First up is cob and I hope you enjoy seeing what I build!

Thanks for watching!

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40 COMMENTS

  1. So far so good it looks pretty nice! I can't wait to see the inside when it's finished. You have a unique way of building things that look very custom traditional with a Twist of modern. 🌻🐾

  2. Hi, you know many buildings in rural/middle and south/Portugal, are made with that technique? Many with entire straw bales, and covered with clay, with a wooden structure similar to yours, to make walls quite thick, to avoid the outside heat. Many people with the new offgrid quintas. ask people to come and pass a pleasant day, they offer meals and stay for some days and they help building what they need to be built! You arebrave, I must say!!

  3. Nice. I like the long clips; seeing and hearing multiple times you do something -a bit of throwing on, smoothing, etc. (I don't know the terms) – makes me feel I know how it is to do that.

  4. I do love cob, and you did an amazing job of it. I once researched wattle and daub for a chapter in my novels, and it was fun to hear you say it ad use it. What an organic way to build, a time tested method. Looking forward to tomorrow. So no need for a heat guard by the wood stove?

  5. That was so interesting!!!!! I ve never seen that done before. I do have a question – that cob wall looks so thick. Why wouldn’t you just put up a wall partition there? Like a regular wall that wouldn’t take up all those extra inches from side to side especially if you ll be using cob in other places inside your home. That seems like a lot of space to lose.There must be a reason, I know, and maybe you addressed that but I’ve missed it.

  6. Hi Kirsty, you’re very skilled working with the cob. I’m just wondering does this wall need to be so thick for a reason? If it was thinner you would have more space in you cupboard.

  7. I really like the cob wall look. You have so much knowledge about different types of building and you have great technical skills with each type. Your place is starting to come together. Thanks for the videos.

  8. How you light up when you are speaking about cob. It shines from you, your love of this beautiful material ❤️. I love that you can be as creative as you like with niches and surface embellishment and look forward to seeing more of what you are doing.

  9. HELLO KIRSTY…GLAD FOR THE RAIN, YOU SURE NEED IT THERE…AND COOLER TEMPS. …WE HAVE 76 F. HERE IN VANCOUVER TODAY…BEEN BEAUTIFULLY TOLERABLE HERE FOR A WEEK NOW…YOUR WADDLING IS WADDLEFULL!…ALL THE BEST…🙏 LOVE TO MIKEY, REMINDS ME OF MY LICKYBOO YEARS AGO…;)

  10. Having been involved in a few cob, and/or strawbale buildings with a clay plaster, I would STRONGLY recommend a more rigorous test of the clay:sand:straw mixture!

    Dig up sufficient clay – lets assume 2 tonnes for your house. Put the clay in a bath or other large container, and wet it thoroughly. You might need 3 baths, 4 baths, 6 baths … It should be wet enough to be like plaster all by itself. Mix it daily, or twice daily, for at least three weeks. It MUST be completely hydrated and smooth.
    Create a matrix on an existing wall:
    along the top write 0,1, 2, 3, 4 ie 0, 1 part sand, 2 parts sand, 3 parts sand, 4 parts sand
    Down the side write 0 straw, one part straw, 2 parts straw etc

    Now make your mix, using clay, straw and sand in equal volumes. Straw that has been chopped using – for example – a strimmer is ideal.

    Starting at 0,0 you have just clay

    0,1 = clay, no sand, one straw; 0,2 = clay, no sand, 2 straw; 0,3 = clay, no sand, 3 straw etc

    1,0 = clay, 1 straw, no sand … etc etc etc.

    Slap each mixture on to your wall in 1 foot/30cm squares. A few days later – 2 ought to be enough – have a look how much cracking has occurred, how grainy it looks, how well stuck it is …

    OK, cob and plaster are different things, but this test will give you the strongest result

  11. That’s one good thing about working with cob if it don’t work out just break it up and start all over again Could you make a little small box next to your fireplace to keep food warm just an idea 👍✌️🤙❤️🇵🇹❤️

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