What Is Ground Contact Pressure Treated Wood
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. Thirty percent failure of treated wood in the first third of 'working' life is alarming and indicates errors in the treatment standards.
Ground contact means the lumber is installed near or on the ground, not below grade.
What is ground contact pressure treated wood. If your wood will touch the ground or be buried, you should get the highest grade you can, up to. 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. Wood is in direct contact with material that already shows signs of decay.
Ground contact pressure treated wood. There is a different grade of treated lumber for anything in the ground like fence posts. Make sure the use noted on the lumber end tag matches your intended use.
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. Pressure treated wood formulations should be is building code.
One clear thing is that the pressure treatment of wood makes the wood rot resistant. In contact with debris, leaves or vegetation. Ground contact treated wood should be chosen for parts of your project that are:
Exterior uses include above ground, ground contact, and fresh water contact. 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. Will pressure treated wood rot in the ground?
That said, not all pressure treatments are created equal. Use either uc 4a or uc 4b treated lumber. Using the correct type of treated wood will extend the lifetime of the project and better protect the investment.
Exposed to daily wetting from sprinklers or other sources of moisture. 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. In contact with old wood that may be partially decayed.
Treated wood has different treatment levels.