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Inspectors Blog
Termites - Some great Information
Why worry about termites?
Termites cause billions of dollars in damage each year. They primarily feed on wood, but
also damage paper, books, insulation, and even swimming pool liners and filtration systems.
Termites can injure living trees and shrubs, but more often are a secondary invader of
woody plants already in decline. While buildings may become infested at any time, termites
are of particular importance when buying or selling a home since a termite inspection/infestation
report is normally a condition of sale. Besides the monetary impact, thousands of winged termites
emerging inside one's home are an emotionally trying experience - not to mention the thought of
termites silently feasting on one's largest investment.
Why are infestations often discovered during March - May?
Spring typically is when large numbers of winged termites, known as "swarmers," emerge
inside homes. In nature, termites swarm to disperse and start new colonies. Triggered by
warmer temperatures and rainfall, the winged termites emerge from the colony and fly into
the air.
Why are infestations often discovered during March - May?
Winged termites emerging indoors are a sure sign that the building is infested.
The swarmers then drop to the ground, shed their wings, pair off with a mate, and
attempt to begin new colonies in the soil. Few swarmers emerging outdoors survive to
start new colonies. Swarmers emerging indoors are incapable of eating wood, seldom
survive, and are best removed with a vacuum. They do, however, indicate that an
infestation is present.
How will I know if my home is infested?
Discovering winged termites indoors almost always indicates an infestation warranting treatment.
People often confuse winged termites with ants, which often swarm at the same time of year.
Termites can be differentiated by their straight antennae, uniform waist and wings of equal
size. (Ants have elbowed antennae, constricted waists and forewings that are longer than
the hind wings.)
The swarmers are attracted to light and are often seen around windows and doors. Termite
swarmers emerging from tree stumps, woodpiles, and other locations out in the yard are not
necessarily cause for concern, and do not necessarily mean that the house is infested. On
the other hand, if winged termites are seen emerging from the base of a foundation wall
or adjoining porches and patios, there's a good chance the house is infested also and
treatment may be warranted.

Other signs of infestation are earthen (mud) tubes (shown above) extending over foundation
walls, support piers, sill plates, floor joists, etc. The mud tubes are typically about the
diameter of a pencil, but sometimes can be thicker.
Termites construct these tubes for shelter as they travel between their underground colonies
and the structure. To help determine if an infestation is active, the tubes may be broken open
and checked for the presence of small, creamy-white worker termites.
If a tube happens to be vacant, it does not necessarily mean that the infestation is inactive;
termites often abandon sections of tube while foraging elsewhere in the structure.
Termite-damaged wood is usually hollowed out along the grain, with bits of dried mud or soil
lining the feeding galleries. Wood damaged by moisture or other types of insects (e.g., carpenter
ants) will not have this appearance. Occasionally termites bore tiny holes through plaster or
drywall, accompanied by bits of soil around the margin. Rippled or sunken traces behind wall
coverings can also be indicative of termites tunneling underneath.

Oftentimes there will be no visible indication that the home is infested. Termites are cryptic
creatures and infestations can go undetected for years, hidden behind walls, floor coverings,
insulation, and other obstructions. Termite feeding and damage can even progress undetected in
wood that is exposed because the outer surface is usually left intact.

Termite damage to baseboard. Hidden infestation was discovered when vacumn cleaner attachment
penetrated surface of baseboard.
Confirmation of infestation often requires the keen eye of an experienced termite inspector.
However, even the most experienced inspector can overlook infestation or damage which is hidden.
Fireplaces - The Magic and the Mystery
Fireplaces are no longer used as the primary source for heating homes, but the magic of a
fire stills makes a fireplace a valued part of any home. There are few things nicer than a
cheery fire, especially on a cold winter night. By the same token, there are few things
more distressing than a fireplace which doesn't draw - belching smoke into the home,
chasing people out, setting off smoke detectors, and dirtying everything in sight.
Why do some draw perfectly and others so poorly?
Good Design There are many factors which affect fireplace performance.
Some of the more important are listed here:
Ratio of Fireplace Opening to Chimney Flue Size The area of the flue should be roughly (1/12) one twelfth the size of the opening area.
Chimney Height The taller the better, but at least 3 feet above the roof and 2 feet higher than anything within 10 feet of it.
Damper Size and Location Full width of firebox and at least 6 inches above the top of the opening. The damper is usually closer to the front of the fireplace than the back.
Smoke Chamber Slope and Smoothness The chamber above the damper should be as smooth as possible, and should slope no more than 45o as it funnels the smoke from the damper opening into the chimney.
Most fireplaces break at least some of the rules of good design and yet many work well despite this. Fireplace design is more of an art than a science.
Because there are so many factors which affect the draw, it is impossible to know how "perfect" the unit has to be to work. What about solving the problem
of a fireplace that doesn't draw well?
Improving the Draw
Reduce the Opening Size This can be achieved by laying an additional row of firebrick on the floor of the firebox. Even before this is done, the solution can be simulated by holding a piece of metal over part of the opening and watching to see if the draft improves.
Extend the Chimney: This is expensive but often successful. Less expensive alternatives include a rain cap or a metal draft hood which rotates with the wind so that smoke is always released downwind.
Move the Fire Back Often the fire is simply too close to the front of the firebox.
Add Air A fireplace which is starved for air won't work properly. Sometimes opening a window in the room with the fireplace will supply enough air. Fireplace draw is more difficult to achieve if the house is under negative pressure. Don't have exhaust fans on while trying to start a fire. Most furnaces also work like exhaust fans. It is easier to start a fire when the furnace is in an off cycle. Glass doors help to protect the fireplace from negative pressure effects in the house, especially if combustion air can be brought in from outside.
Warm the Flue This is a trick most people know about. Pushing a burning piece of rolled-up newspaper up past the damper will help overcome the column of cold air in the chimney and allow a good draft to be established quickly.
We didn't suggest damper or smoke chamber modifications because they are expensive and should be considered last resorts.
60 Amp Services and Limited Distribution Systems
Is a 60 amp Service Unsafe?
In a word, "No". A 60 amp service is small by today's standards; however,
it might surprise you to know that a small house could be built today with a
60 amp service and still comply with modern electrical codes. A 60 amp service
comes with 60 amp fuses or a 60 amp breaker. If you draw more than 60 amps,
the fuses will blow or the breaker will trip. The fuses or breakers are the
brains of the system and they are performing their intended function.
They are simply shutting off the power. While this may be inconvenient for the
home owner, it is not unsafe.
Electrical Consumption
The biggest users of electricity in a house are things with heating elements. The larger
the heating element, the more electricity will be used. In an average home, the stove is
the biggest user, followed by the clothes dryer. An electric water heater usually takes
third place. If additional large heating elements are found in the house in a sauna or
a pottery kiln for example, it is almost impossible to get away with a 60 amp service.
In addition to large heating elements, big electric motors also draw a considerable amount
of juice. Air conditioners are prime examples. Therefore, you may find that if a house has a
60 amp service, and has an electric stove and electric clothes dryer, you might not be able
to use the two simultaneously. It's OK if you are using one burner, but if you are cooking
a turkey dinner with all four burners and the oven on, it's a bad time to do the laundry.
Many first time buyers however, do not own appliances. If they are buying a house with a 60
amp service, it would be wise to install a gas stove and a gas clothes dryer which draw less
electricity. A house with a 60 amp service and gas appliances has almost as much usable
electricity as a house with a 100 amp service and an electric stove and electric clothes
dryer.
Limited Distribution
Most 60 amp services are found on older systems which have a limited number of circuits.
This is a potentially hazardous situation, particularly if the system has fuses rather
than breakers. Some homeowners find that their overtaxed distribution system is constantly
blowing 15 amp fuses. They replace them with 20, 25 or 30 amp fuses to prevent the fuses
from blowing. This is an unsafe condition overheating the wires, and potentially leading
to a fire.
The solution to the problem is not necessarily a larger service, but rather a larger
distribution system. It is far safer to own a house with a 60 amp service and 24 circuits
than a house with a 100 amp service and 6 circuits.
Small appliances with heating elements such as kettles, toasters, irons and hair dryers
all draw a considerable amount of electricity for their size. This is why a house with
limited distribution system is problematic. If you plug a toaster and kettle into the
same circuit, you will draw more than 15 amps and blow the fuse. This would be true
regardless of whether the amount of electricity coming into the house is 60 amp,
100 amps or 200 amps. The solution is not a bigger service but more circuits.
In an old house, you might find only six or eight circuits in the entire house.
In a new house, you might find that many circuits in the kitchen. As a matter of
fact, in a modern Canadian house, the top half and the bottom half of each outlet
in the kitchen are on a separate circuit. This explains why you can plug the toaster
and kettle into the same outlet without blowing any fuses or tripping any breakers.
So the insurance companies has missed the mark. They are concentrating on houses with
60 amp services when they should be concentrating on houses with limited distribution
systems. We hope this explanation will help them make the connection!
About Us
We are a member of the National Association of Home Inspectors as well as the Pennsylvania
Home Inspection Coalition. We follow the Code of Ethics and the Standards of Practice set
forth by these organizations. We are bonded by The Hartford Insurance Co. and insured
by Lexington Insurance Co. that includes a Real Estate Referral Endorsement that
protects you and the realtor.
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