Tools of the Trade and the many ways to peel a log
Here are just a few of the many tools used in log home
building.
Timber tote, used in moving smaller logs
If you're going to be doing any building with logs you will find out
very quickly that some specialty tools can make the job much easier.
In this issue we will focus on de-barking tools, log scribers and peaveys.
Scribers are used to transfer the shape of one log to another. This
tool is indispensable when building a scribe-fit (chinkless) home. The
double bubble or bulls-eye level attached to the scriber allows you
to accurately transfer the irregularities of the lower log go the one
above with a scriber pencil. By cutting your scribed lines you can ensure
that the logs will fit together tightly. Also used by boat builders
and trim carpenters to transfer unusual shapes to the board they're
working with.
A peavey is used to roll and position logs. It allows you to grasp
logs of a wide range of diameters and move them. Trying to maneuver
logs without such a tool can be extremely strenuous.
The many ways to peel a log
Transforming a pile of raw logs covered with bark into material that
is ready to scribe, cut, and stack can be approached several ways. Your
choice will be based on how much time you have, how you want the end
result to look, and when the wood was cut.
The most common method is to use a peeling spud and drawknife combination.
A peeling spud is a tool that removes the bulk of the bark by prying
it off. This works best on non-winter cut wood. In log building, a peeling
spud is used to knock off the majority of a log's bark. Although many
professional log peelers use only a drawknife and a chainsaw and/or
grinder for knots, using this tool before you begin to use the drawknife
will save you time and energy in the long run and save sharpening time
on your drawknife
A drawknife is then used to finish the job before the log is ready
to cut. Drawknives come in a wide range of sizes. Several different
handle angles are also available because, to date, no one handle-to-blade
angle has been satisfactory for all people. Overall weight of the drawknife
can be a consideration for many people. Professional log peelers, (yes,
there is such a profession and more physically fit group of folks would
be hard to find), lean toward heavier drawknives. Some prefer the Montana
Pro, (shown on right), which has a planer blade for the cutting edge
and holds a sharp edge longer than other knives; while others prefer
the hand forged Barr drawknife which is easier to sharpen and has a
large following of devotees. Yet others lean toward a curved blade with
the handles almost in-line with the blade, such as the Gransfors Bruks.
We carry very small carver’s drawknives with a 4” blade;
3 mid-weight drop forged drawknives for small poles, furniture or railing
stock and smaller house logs; and 3 heavy weight sizes for peeling house
logs. You'll find pictures and description for our many drawknives HERE.
By using a chainsaw and/or grinder to smooth the knots before you begin
peeling, you can go over those areas with your drawknife for a more
consistent look and you'll minimize the chance of "nicking"
your blade on the hard knot wood or a piece of gravel or grit that often
gets imbedded around the knot..
If you experience tearing or jagged edges while peeling, try peeling
in the other direction. Often you have to peel toward knots. Additionally,
keep your blade sharp.
Many people want to leave some of the inner bark on for a more “rustic”
look. (This is often what is meant by "skip peeled"). Before
you do, consider that the bark can harbor insects which can start chewing
into your logs; bark can also act like a sponge, holding moisture in
contact with your logs; and it can eventually curl up and fall off,
taking with it any stain/finish you’ve applied and leaving your
logs unprotected in those areas. You’ll probably be fine in a
dry, non-buggy area but think twice about leaving bark on in a moist/humid
area where wood boring insects abound.
If you prefer the look of Appalachian style square hand hewn log homes,
try using an adze or broadaxe.
Adzes are available with both flat and curved blades as well as short
and log handles. Short handled adzes are used with either one or two
hands with the wood you're working on located between knee and waist
height. Long handles are often used when "straddling" your
work on the ground, or close to the ground. In effect, you swing the
adze between your legs. Some builders consider an adze the finishing
tool to the broad axe. Others use it on it's own.
Broad axes are similar in look to an axe with an extra wide blade. Handles
are most often of mid to full length and grasped with both hands. You
generally work standing to one side of the log with the flat side of
the broad axe to the wood. The log or beam can either be on the ground,
or raised depending on how you're gripping the handle. (A full over
the head swing or more of a short chopping motion). Broad axe handles
can be left, right or on center. Blades can also have a variety of profiles.
We carry hand-forged broadaxes from Sweden that can be either beveled
on the left or right and that come with a straight or angled handle.
This truly authentic method will give you a new appreciation of the
log homes of yesteryear.
A mechanical method to remove bark employs the Log Wizard. This tool
bolts to the end of your chainsaw bar and is powered by your saw chain.
The two blades rotate on a drum and make quick work of peeling. The
end result is similar to a drawknife effect. This tool can also rough
shape logs (rough notch, sharpen the ends for fence posts, etc.). For
added safety we suggest using cutterless chain and a fairly short bar
on your saw for added control.
Water peeling is possible for wood that was cut in the spring and leaves
your logs beautifully smooth. In this method you are removing the bark
and a layer of wood down to the next in-tact winter growth ring using
a pressure washing unit. The winter "ring" is incredibly hard
compared to the growth area between the rings and some high-end builders
prefer this method for that result. Conversely, it's more difficult
to get a penetrating finish to "take" properly. The water
pressure should be 500-1000 psi if you are using a regular nozzle and
2000-4000 + psi if you are using a RotoMax nozzle that sends out a rotating
circular spray of water instead of a concentrated blast. This is easier
on the wood and is faster by far compared to using low pressure and
a standard nozzle..
Pressure washing is more difficult to use if the logs have been heavily
damaged by the logger because several layers of growth rings may have
been damaged and it's difficult to get one smooth layer as you keep
"blasting" into a deeper layer where ever there is damage
to the log.. If you peel your logs this way keep in mind that any damages
incurred in the building process will be very hard to hide.
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