Roundwood Timber Framing: Building Naturally Using Local Resources (英語) Hardcover – 2010/11/11
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The twenty-first-century woodsman discusses his unique sustainable building style which combines the timber framing methods of his British ancestors with new techniques and and an environmental consciousness.
"Ben's beautiful book shows that intelligently sourced wood is ultimately the best building material we have."--Hugh Fearnly-Whittingstall
"The sheer visual, sensual, even animal, pleasure in wood, from seedling to final giant ridge pole, comes through in every page"--Tony Wrench
"The intelligence of Nature's forests speak through Ben Law ... a beautiful manual"--Rachel Shiamh商品の説明をすべて表示する
A cruck is at the heart of this building style; it is essentially an A-frame that is braced and then surrounded by a box frame. The multiple crucks are made on the floor, then lifted erect one by one, pulling a log ridge pole up and onto their tops as they are lifted. This produces a strong structure but fills the living or working space of the building with angled poles. The building process requires a crew and/or special lifting equipment.
The book chapters include tree species used for specific parts of the construction--some species are not found here but for which we have substitutions that are not given in the book, tools--some not commonly found here, and how to hand chisel the various pegged joints that keep everything tight together. Many of the tools are specialized and would add to the cost of constructing a single home or shop building.
I applaud Ben Law's eco-sensitive outlook. He eschews concrete foundations, opting for one-square-meter gravel foundation pits topped with square "york stone," for which we Americans would almost certainly substitute concrete. Alas, he does not address the issue of frost heaving. He uses coppiced trees typically harvested from the building property, greatly reducing the need for oil-consuming and polluting transportation. Insulation is often sheep's wool, with which we on this side of the pond have zero experience. I recommend dense-packed cellulose which has high R-value and is made from recycled paper materials.
If you love wood as I do, have lots of trees on your property as I do, and have lots of nearby stout, willing friends to help--I don't--this building style is unique, beautiful, strong and uses a renewable resource, although I suspect that a stickbuilt house actually uses fewer trees for its construction.
My final complaint is that there is no index.
the author is in England and uses Chestnut which is not available in North America;
round wood building requires a huge investment in tools and equipment: think "timber frame tools" and double or triple the cost;
putting up these structures will require a large, skilled crew;
all structures featured are hybrids which include lots of milled lumber (the author probably has his own bandsaw mill which is shown in some pictures);
The cruck frame appears redundant and, although it does eliminate the need for angle bracing on the gable ends it causes lots of extra labor and money to work with and around;
these structures will require lots of exterior maintenance, especially gable end walls that have small overhangs.
If you are wealthy and can afford to spend lots of time and money to apprentice yourself for a year or so, then invest in tools (include at least 5K for a starter bandsaw mill) and hire two or three skilled timber framers and put them through the apprenticeship, you will eventually have a showpiece. If you are not wealthy you will learn a few tips and might consider including a few round logs in your timber frame structure which would be more feasible.