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Jan 06
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Properties of clay plaster

How to Make and Apply Base Coat Clay Plaster

By Resources, Clay Plaster, Straw Bale Building, Light Clay Straw
Base coat clay plaster

A student floats a creamy layer of clay plaster during one of our workshops

In my recent series of posts, I’ve described the process for building and finishing a light clay straw wall. First there was mixing the light clay straw itself and stuffing it into wall cavities. Then I discussed how to prepare for plaster by making and installing wood trim, and coating the walls with a simple clay slip. Next I’ll describe how to make and apply a base coat (or scratch coat) clay plaster. Now it’s really getting fun.

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Dec 08
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Slick Way to Anchor Wood Posts to Concrete

By Timber Framing, Foundation

Concrete Post Anchor

A common design question when working with wood posts and concrete (or stone) is: how do you anchor posts to the concrete? Honestly, if we’re talking about a large structure with a lot of weight, gravity does most of the work and you don’t need a specific connection. A concrete post anchor may be necessary in a variety of situations, however. Here is a particularly slick way to anchor wood posts to concrete using a very discrete piece of hardware.

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Nov 21
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Timber Frame Wood Shed

By Carpentry, Timber Framing, Hand Tools

ziggy-swings-axeGears quickly shifted this fall when I was contracted to build a wood shed in town. Up until a few weeks ago, I was trying to squeeze in as much work as possible on the ol’ homestead projects — the light clay straw outhouse in particular. I did end up getting the little outhouse to a good point. (Plastering season is over… unless for some reason we get a 60+ degree stretch in December. You never know these days, sadly.)

Anyway, the wood shed I’m currently building is a proper timber frame with wood joinery, which is obviously very exciting for me. Getting contracted to do a timber frame anything has been my goal since moving to Berea a few years ago. Here are a few photos of the building process.

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Oct 26
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How to Make and Use Clay Slip

By Straw Bale Building, Light Clay Straw, Clay Plaster
Clay slip on a light clay straw wall

Smearing clay slip on a light clay straw wall prior to plastering

Clay slip is an essential material for coating straw bale and light clay straw walls prior to plastering. Basically, it serves as an adhesion coat, essential for getting the first coat of plaster to stick to the wall. There’s not much science to making clay slip, and it’s really fun to smear. Here are a few really simple tips for making and using clay slip for natural walls.

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Oct 20
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Preparing for Clay Plaster: Making and Installing Wood Trim

By Doors & Windows, Resources, Clay Plaster, Carpentry, Light Clay Straw

clay-plaster-floating-fiberglass-stucco-mesh-02

Light clay straw walls are a great surface for finishing using natural plasters. Because the straw-clay is tamped inside of a stud wall, you have a fairly flat surface to start with, compared to something like straw bale which needs a lot of trimming and often extra thick plaster to achieve an even surface.

Here I’ll give some tips and suggestions for how to prepare a light clay straw wall to receive clay plaster, using our recent outhouse project as our demonstration site. In this post, I’ll talk about how to make and install wood trim, which should be the first step in preparing your newly built wall to receive clay plaster.

There are a few tricks you’ll need to ensure a quality job. Read ahead for my method…

 

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Oct 13
Love3

Japanese Joinery, Animated

By Carpentry, Timber Framing, Design, Woodworking, Resources, Traditional Building, Video
 
 
Japanese craftspeople have the reputation of designing and creating some of the most intricate and complex timber joinery on the planet. The use of timbers in construction has a long and deeply fascinating history, and many of these astonishing joints have their roots in the building of temples. Historically, these techniques were fiercely guarded secrets of the carpentry guilds. (If you’re interested in Japanese joinery history and the current practice of temple restoration, check out the fascinating book The Genius of Japanese Carpentry.)

Check out this collection of beautifully simple animations of Japanese joinery in action. These are great little demonstrations of timber frame joints interlocking together.

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Oct 05
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Another Way to Make Chopped Straw

By Light Clay Straw, Clay Plaster, Earthen Floor, Straw Bale Building
Making Chopped Straw with a Lawnmower

Making chopped straw with a standard lawnmower

Chopped straw is an invaluable ingredient for clay plasters and earthen floors. Unfortunately, it’s a bit of a drag to actually make the stuff if you don’t have the right tools or equipment. If you’re building a straw bale wall, you get the benefit of collecting the chopped straw once you shave your walls (which is commonly done with a weed whacker). But if you’re working on a different type of structure, you’ll have to find a way to specifically make the chopped straw.

The ol’ “weed whacker in a barrel” gets really old really quickly, and frankly isn’t that effective. If you don’t have a leaf mulcher or wood chipper, which are far more efficient, you can actually use a lawn mower with a bag attachment to chop all of your straw for plaster. Here’s how to do it.

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Sep 28
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A Light Clay Straw Building Primer

By Resources, Light Clay Straw

stuffing-slipstraw-in-wall-cavityIt’s been quite the eventful September. The big news of the month is that we hosted our first Natural Building Workshop at the homestead. It was, in a word, wonderful. We had a very diverse group of 10 folks come out to learn all about cob, light clay straw, clay plaster, and clay paint. I couldn’t have asked for a better group. I’m continually amazed at the positive energy that is generated through these workshop experiences.

One of our projects was building the light clay straw walls of our new outhouse, which I’d like to document a bit here. This is an outhouse that will serve future workshops and large events (as well as being quite useful for just ourselves, too). The building is also a little bit of a “natural building showcase”, as it will have a few different types of natural finishes on display when all is said and done.

Read ahead to learn about how to build a light clay straw wall.

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Sep 06
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Fall is for Cob Benches & Outhouses

By Light Clay Straw, Cob Building, Natural Building Workshops
Framing the outhouse

Putting roof decking on the new outhouse

Our first official natural building project on the land this year is an outhouse. Ha! I kinda love that. Right now we’re in the midst of framing a small two stall outhouse that will be one of the site projects for work & learning during our upcoming Natural Building Essentials workshop. This outhouse is going to get a pretty special treatment in the form of light clay straw walls and a clay plaster finish. The finished product should be pretty de-luxe.

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Aug 30
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Sustainable or Resilient?

By Homesteading, South Slope Farm

Sustainably or resilient?This is just a bit of a thought experiment. I’ve been pondering the differences between the words “sustainable” and “resilient” lately, and if either of them apply to how we’re trying to live. I used to throw around the word “sustainable” a lot more than I do now, and I’d like to try to explain why I feel more cautious these days.

In textbook terms, sustainability means “the ability to continue a defined behavior indefinitely” (source). The key word here is “indefinitely”, which is defined as “lasting for an unknown or unstated length of time”. A synonym for indefinite is infinite. Practically speaking, what’s implied here is that if something is defined as sustainable, it means that it can be continued forever into the future.

Well, that’s a pretty heavy statement, huh? Going by this definition then, the phrases “more sustainably” or “less sustainably” don’t exactly make sense — there is only “sustainably”, since how can you do something “more infinitely” or “less infinitely”?

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