Like every other house exposed to the elements, Log Homes are neither
maintenance free, nor are they absolute killers to take care of. I don't think
it would be an exaggeration to state that the first couple of years demand
significantly more work than your standard-issue house - unless, of course, you
can afford to pay someone to do the work for you! Log preparation and the base
coat of stain are critical to the long-term success of your wall protection. But
once the initial work is done, the maintenance becomes routine, and I would
venture to guess log homes are a little easier to care for than other wood
houses. After all, you don't have to strip the stain off between coats.
LOG PREPARATION: Most construction sites become a sea of mud in a short
period of time. The soil has been disturbed and there's no grass to hold the
dirt together (or absorb the rain). You'll discover that the first few log
courses are absolutely pristine, but the higher the walls become, the more the
logs get dropped, smudged, or even used as stepping stones to dryer places (like
the port-a-potty). Once the house is up, the logs will have to be washed before
applying a stain... both inside and out.
Doing the interior cleaning in the right order didn't occur to us -
especially since the logs were erected in the winter. In our case, the timing
was all wrong; you really want to wash the interior walls before the finished
floor is laid, and before the basement insulation is installed under the floor
decking. We didn't make it, and we had to follow our wall-washing with a
shop-vac to get rid of all the water... what a mess!
It was recommended that we use a mixture of one part bleach and four parts
trisodium phosphate. We scrubbed it on with a brush and rinsed it off. Some
people recommend a power washer for the outside walls, but you must use great
care, and apply with a fan-tip to avoid damaging the logs. The experts recommend
corn cob-blasting, but this is an expense most of us can't afford. If you do use
a power-washer, it's a good idea to follow up with a shop-vac and vacuum out the
water that will pool inside the checks, so that the logs don't get saturated
from water sitting in the cracks. Even so, it will take one or more days to dry
completely, depending on the weather.
Once the logs are dry, it is recommended that you apply a borate treatment
before applying the stain. This borate is not only an insecticide, it also
protects against rot. Usually this comes as a powder, and is mixed with water
and sprayed on with an ordinary garden sprayer. Make sure it doesn't rain
between applying the borate and the stain, or the borate will probably wash out.
STAINING: All stains are not created equal. There is a big performance
difference between the best and the worst, so make sure you don't try to save
money by cutting corners on the stain - you'll pay for it later. A deck sealer
just won't work for logs; you should use a product specially designed for log
homes, and you won't find it at your local hardware store. For a good brand,
budget around $250 per 5-gal pail. Our 2400 sq. foot house took about 5 pails
initially. Most stains need to be applied in two or three coats, so make sure
your painter knows this when going for a quote. You will want to stain the
exterior as soon as possible after the house is erected; it's amazing how
quickly the logs will turn gray under normal exposure.
Afterwards, a "maintenance coat" of stain needs to be applied every 2-5
years, depending on the exposure. You usually don't have to restain the whole
house at one time. You'll see the color lighten up as the stain wears thin - for
lack of a better word. If you're not sure whether a new coat is required, run a
hose on the wall and see if the water beads up. If it does not, you're probably
ready for another coat. And no, you don't have to strip off the old stain first,
unless it has been neglected and shows sign of flaking and chipping. If your
walls have gone 10 years without a second coat, you may have to corn-blast and
start over. In this case, consult a specialist.
RAILING SYSTEM: The weak link of every log home is the railing system -
especially on an exposed deck. The junctures between the rails and spindles need
to be caulked thoroughly, and you'll see many more checks in the little railings
giving the opportunity to let rain in. The railing system needs to be restained
every year. Make sure you don't let any water drip on the railings; gutters are
a must.
CAULKING: It is a personal preference whether or not you caulk the exterior
of your log home, but common sense would tell us that it's good policy to lock
out the elements. There are caulks specifically designed for log homes that
remain supple and give with normal expansion & contraction. The first couple
of years, it is advised to caulk any checks that appear on the upper curve of
the log surface, where rain might collect. These caulks will take a stain, so
they tend to blend in. After the house has reached equilibrium with its
environment, the checking will cease.
INSECTS: You can read more about insects in my article LOG HOMES vs. INSECTS:
WHAT TO LOOK FOR. For the most part, there is visual evidence of any insect
problem. Make it a policy to inspect your home in the spring and in the fall,
and be sure to keep your walls free of foliage, dead leaves, etc. Bushes should
be planted a minimum of 2 feet away from the walls. Don't stack firewood against
the wall, or anything else that could provide a home for unwelcome critters,
four-legged or six-legged ones.
BOTTOM LINE: Maintenance on your log home should be routine, and the best
defense is keeping a careful eye on abnormalities. Discoloration of a corner
probably means water is dripping on it. A little pile of sawdust probably means
a boring insect. Holes in the log, regardless of how tiny, are a red flag. These
are the kinds of things you'd look for with any house. And after you've had your
inspection, relax on the deck and enjoy your home... you deserve it.