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Log Decay - The Signs, Treatment and Prevention of Log Decay
Fri 06 Nov 2009 - 14:15
Log Decay - The Signs, Treatment and Prevention of Log Decay
By [http://ezinearticles.com/?expert=Tom_Tydeman]Tom Tydeman
This article was written to help you recognize the possible signs of log decay, learn the different options for treatment and important steps on how to prevent decay from occurring.
Types of Log Decay
There are three types of fungi that attack wood cells. Mold, sap stain and decay fungi. Mold and sap stain do not structurally harm wood but are an indication of excess moisture which may lead to the growth of decay. This fungi feed off the structural components of the wood fiber and cause the most harm. For this to occur, moisture content of the log is normally 30% and higher over extended periods of time.
Common Areas
It may be difficult to check every area however, the most common areas to focus on when inspecting your home is listed below.
- Lower courses above decks, hatchway doors and areas with minimal ground clearance.
- Area behind and around objects such as oil tanks, light fixtures, intersecting roof to log wall, landscaping.
- Around windows and doors.
- Walls with minimal roof overhang.
- Log ends
Possible Signs
Log decay is not always apparent. Walk around your home and start by visually inspecting for the possible signs listed below. This does not necessarily mean there is decay but does indicate there is potential for decay to occur if the situation is left untreated.
- Algae
- Green or blackened logs
- Signs of insects
- Mold
- Excessive checking, breaking or peeling
- Flowering fungi
How to Determine if a Log is Decayed
If you suspect a specific area, there are several methods used to help determine if decay is present. It is impossible to know the extent until you begin to cut away the area.
- Lightly tap with a hammer and listen for a hollow sound. Taping a log you know is in good condition will help you feel the difference.
- Insert a probe. The depth of the probe can help determine the extent of log decay.
- A Moisture Meter with at least a one inch probe will help determine internal moisture content.
Repair or Replacement
If it is determined that 50% or more of the log is decayed then full replacement is indicated. Less than 50% may be rectified by digging out the rotted areas, coating with borate to kill insects and fungi, and installing half log siding that matches your profile. This area is usually sealed with a blended caulking to prevent moisture from entering around the repair.
Cost of Repair or Replacement
The cost of repair or replacement is dependent upon a number of factors. The average cost for half log repair is $45-$80 per foot and full log replacement is $65-$100 per foot depending on the following.
- Location of the decay.
- If the repair is located in one area or several different areas.
- Wood species.
- Price may be lower if the professional is doing a complete restoration or log replacement only.
Prevention
Decay can always be prevented. You should perform maintenance inspections on a regular basis. Below are some basic tips to help ensure your logs stay protected.
- Borate prior to staining. (old finish must be removed)
- Stain using a quality log home finish.
- Install a gutter system.
- Grade soil away from foundation.
- Keep landscaping away from walls.
- Be sure water hoses and sprinklers are not hitting your home.
- Properly flash all doors, windows, dormers, chimneys.
- Install impel rods in areas of high moisture content.
- Clean areas of algae or mildew.
- Apply maintenance coats more frequently to areas exposed to moisture.
- Remove objects in contact with your home.
Conclusion
Wood that is completely protected from water will never decay. If this is not possible, perform frequent inspections and look for the warning signs. Simple preventative steps taken now can save you expensive repairs in the future.
Article written by Tom Tydeman, Owner of Log Options, LLC. Our services include Log Inspections, Free Consultations, Do-It-Yourself Information and Contractor Referrals regarding log home maintenance and restoration. Visit our web site for detailed log photos, more articles and useful information on log home care at [http://www.logoptions.com]http://www.logoptions.com.
Article Source: http://EzineArticles.com/?expert=Tom_Tydeman http://EzineArticles.com/?Log-Decay---The-Signs,-Treatment-and-Prevention-of-Log-Decay&id=3177982
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