Which wood treatment method is effective in preventing termite damage?

Pressure treatment with preservatives is an effective method for preventing termite damage because it involves infusing wood with chemical compounds that deter insect activity, including termites. This treatment process enhances the wood's resistance to decay and insect invasions by allowing preservatives to penetrate deeply into the fibers, making it less appealing for termites to consume.

In contrast, regular paint does not contain deterrents specifically aimed at termites and would not provide lasting protection against them. While sealing wood with polyurethane can offer some degree of protection against moisture and surface pests, it does not penetrate the wood sufficiently to deter termites effectively. Applying vinegar to wood surfaces is not a proven method of preventing termite damage, as it lacks the properties necessary to repel or kill termites. Therefore, pressure treatment with preservatives stands out as the most reliable option for effective termite prevention.