[Humanpowered] Help the Planet while you Help Yourself
Dave Olsen
cob at lasqueti.ca
Wed Feb 24 21:05:10 PST 2016
(This can also be read at cob.lasqueti.ca/blog <http://cob.lasqueti.ca/blog> and
you are welcome to forward this widely. Thanks, Dave)
In my last message to you, I showed you with real numbers how it is possible to
build your dream home and NOT go into debt, costing out a 400 sq ft, 1 bedroom
cabin for less than $4,000. If you missed it, feel free to check it out here:
cob.lasqueti.ca/blog <http://cob.lasqueti.ca/blog>. Thanks so much for all the
feedback I received...you are indeed the reason I write this!
This time, I want to show you how building naturally truly is in harmony with
how humans have lived for most of our existence.
First, let's take a quick peek inside the typical North American (NA) home's
outside walls today, starting with the innermost layer:
1. Paint (doesn't have to be toxic but usually is)
2. Drywall/plasterboard (gypsum is mined and the slurry dried with natural gas;
paper is milled from trees)
3. Studs (usually milled and kiln-dried wood but can be metal)
4. Insulation (fibreglass is natural but heated to 1450º C; polystyrene is
plastic/petroleum)
5. Vapour barrier/plastic (toxic and made from fossil fuel)
6. Pressed wood chips/plywood (the glue that holds everything together is toxic)
7. Siding (usually made of plastic but could be wood or metal)
8. Paint (exterior paint is often toxic)
Not exactly what I would call healthy, for humans or the planet.
Now let's look at Fast Cob!, starting with the innermost layer:
1. Paint (this is optional, milk-based and completely natural)
2. Plaster (I use cow manure and clay in equal parts; again completely natural
with no heat required...and don't worry, it doesn't smell after it has dried;)
3. Cob (sand, clay, and straw; the water dries out naturally)
4. Plaster (if I bother, I use a natural plaster again)
All natural in the Fast Cob! home. All breathable, too, which I'll explain in
greater depth in my next message why this is important for our health.
So how does building naturally help the planet?
For the building phase, it would be more accurate to say it doesn't harm the
planet, unless you consider displacing harmful practices helpful. But since
very few trees are killed to build a Fast Cob! home, it could also be argued
that more trees live and therefore help the planet by continuing to remove
carbon dioxide from the atmosphere.
Fast Cob! doesn't need electricity or fossil fuels, making it ideal for any
location. Of course fossil fuels make it easier and faster (like everything
else) to get the material you need (sand/clay/straw for the walls, rock/cement
for foundations, wood/beams/metal for roof), but when the oil runs dry, we'll
still be Fast Cobbing!
But what makes Fast Cob! really stand out and help the planet is the
heating/cooling aspect of it and the inherent recyclability of it.
About half of the very significant amount of energy used in each NA home is for
heating and/or cooling.
Cob homes naturally absorb and release heat. They are a thermal mass more than
an insulating mass, although you won't feel a draft through a cob wall. So when
there's heat in the air, the walls suck it up and when the walls are warmer than
the surrounding air, they release the heat, warming up the inside of the building.
This is most noticeable in the hot summers here. It is always cooler in cob
buildings than being outside (unless you're in the forest;). In the winter, cob
buildings allow for less wood burning since they release the heat they store
when the fire goes out (assuming you are using a wood stove to heat). Waking up
in a reasonably warm home is possible without oil, gas. or electricity! I wake
up to 16º C all winter long without having a fire through the night. And even
in the hottest part of summer, I never need air conditioning and rarely a fan
(which is solar-powered).
Add a greenhouse to the south side of your building and you can take a month off
of your heating needs in both the Spring and Fall! I've already had a no fire
day and night and it's not even March...unfortunately, Global Warming has to
take some of that credit.
But with a smart, south/SE-facing design, passive solar will heat your home for
free whenever the suns shines. Helping the planet can really help you, too!
Recycle? Who doesn't love to recycle? We've become experts at it and most
households recycle much more than the garbage they produce.
Well if you're a recycler, you're gonna love Fast Cob!
There literally is ZERO waste with Fast Cob! Sure, you're going to spill some
sand and clay here and there, but all of it can simply be put on another tarp
for the next round of Fast Cob! brick making. Or left on the ground to build
the cob subfloor...cob floors are gorgeous and if done right, you can tap dance
to your heart's content with nary a mark left.
What if we zoom ahead 400 or 500 years from now? What do we do with the cob
buildings that have just started to crumble? Use the material to rebuild, of
course! Can't say that for any of the material that goes into a typical NA home
today, unfortunately.
The easiest wall I ever built was from the wall that fell over. As embarrassing
as that sounds, I was so grateful because not only did I learn (the hard way) to
take tarping more seriously, I rebuilt that wall stronger and faster than ever
before. All the material I needed was right there!
Even the waste from trimming or the bits that fall off the wall when you're
putting on bricks can be recycled or simply left to meld back into the earth.
If the human species is wiped off the earth by Climate Change (likely because
not enough people switched to Fast Cob!):, all our cob building will gently
become one with with earth again, back where it came from.
Conventional building practices produce garbage from 10-15% of the materials
brought onto site. That includes nails, insulation, plastic, rebar, milled
wood. These have and sometimes still do contain lead, asbestos and other
hazardous substances.
Not so with Fast Cob! Not only can you build your dream home without going into
debt, you can build with a clean conscience and without the hassle and expense
of throwing a large portion of your expensive building materials into the dump.
Any "waste" on a Fast Cob! building site gently melds into the earth without
costing you an arm or a leg.
Next time, we'll look at health and beauty...it's not just for humans anymore!
As you can read from the list of materials above, Fast Cob! buildings are truly
healthy buildings, now and for hundreds of years to come. And this health and
beauty is hand sculpted from the ground up...I can hardly wait to share more you!
--
Dave Olsen
web: cob.lasqueti.ca
<http://cob.lasqueti.ca/join-our-mailing-list-for-free-access-to-our-training-videos.html>email:
cob at lasqueti.ca <mailto:cob at lasqueti.ca>phone: 877.873.1797 or 604.216.6700
Build your dream...easier, faster, and more affordably with Cob!
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