What Is Ground Contact Pressure Treated Wood
Ground contact means the lumber is installed near or on the ground, not below grade. Will pressure treated wood rot in the ground?
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Using the correct type of treated wood will extend the lifetime of the project and better protect the investment.
What is ground contact pressure treated wood. Ground contact treated wood should be chosen for parts of your project that are: Use either uc 4a or uc 4b treated lumber. Exterior uses include above ground, ground contact, and fresh water contact.
Pressure treated wood formulations should be is building code. In contact with debris, leaves or vegetation. There is a different grade of treated lumber for anything in the ground like fence posts.
One clear thing is that the pressure treatment of wood makes the wood rot resistant. This lumber has twice the amount of preservatives infused within the core so that it can be used above or in contact with the ground outside.common. Lumber treated to “ground contact” has a high chemical retention level and can be placed directly on or in the ground with better protection against rot or decay.
That said, not all pressure treatments are created equal. In the ground or in contact with the ground. Must be used when lumber is less than 6 inches from the ground or has poor ventilation.
Wood with.25 preservative saturation is for above ground application, but you can buy treated wood rated for ground contact that contains.40 preservative per cubic foot. Exposed to daily wetting from sprinklers or other sources of moisture. According to forest products laboratory and other research agencies, pressure treated poles in the ground can stay up to 40 years without any signs of rot.
Make sure the use noted on the lumber end tag matches your intended use. Ground contact pressure treated wood. Wood is in direct contact with material that already shows signs of decay.
If your wood will touch the ground or be buried, you should get the highest grade you can, up to. In contact with old wood that may be partially decayed. Treated wood has different treatment levels.
Thirty percent failure of treated wood in the first third of 'working' life is alarming and indicates errors in the treatment standards.
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