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Re: Termite Control

From: info@builderswebsource.com
Category: Termite Control
Remote Name: 63.198.181.43
Date: 19 May 2001
Time: 06:08 PM

Comments

Termite control and mitigation is difficult in areas with known infestation. There are two types of termites: subterranean (which tend to be more aggressive) and dry-wood. The latter fly in through vents and cracks into the attic.

Despite all the claims, there are very few remedies that will completely prevent termites from entering a home. The key is to mitigate the damage through a combination of preventative measures and treatment.

First, all termites feed on wood products (cellulose). The best way to prevent termites from damaging a home is to build it with as little wood as possible. In other countries where termites are prevalent, concrete construction is more typical. In North America, however, the abundance of wood and contractor familiarity with wood-frame construction means that most homes provide an ample food source for termites.

The use of termite barriers between the foundation stem wall and mud sill can help (if installed properly), however they are not 100% foolproof. Termites have been known to tunnel around the barrier. Furthermore, this won't help for dry-wood termites which fly into the attic. While more expensive, 16-ounce copper is recommended if you go this route. Galvanized metal tends to deteriorate faster. A good reference for how this looks installed is available at:

http://www.utoronto.ca/forest/termite/trmtsh~1.htm

The other method is use of termiticides, which form a barrier for subterranean termites. This must be done by a professional specialist. Often as much as 200 gallons of termiticide is required. Some people have concerns about putting this type of toxic substance into the soil around the home, so it's not for everyone.

The is also growing acceptance of borate-treated lumber. This can also be sprayed on to dry lumber during the course of construction. If the lumber remains dry, this can last 30 years or more. The borate treatment is considered safe for humans yet poisonous for termites. Products such as Tim-Bor from the Borax company are typically used. The active ingredient is Disodium octaborate tetrahydrate 98% (Na2B8O13 · 4H2O). For application information, see: http://www.borax.com/products3.html or go the home page and search for Tim-Bor.

One of the best preventative things you can do is to thoroughly clean up any wood or paper scraps left from the construction site, both under the house and around the foundation perimeter. These scraps make great meals for hungry termites and will only attract them closer to your home.

In addition, there is new research into using "baits" which attract the scouts, who then carry poisons back to the colonies. Carbon Dioxide appears to attract termites.

Finally, if you want to go the "non-wood" construction route, consider either using ICFs (insulated concrete forms) or a combination of concrete and steel, with minimum amounts of wood only where necessary. This is the best prevention of all.

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