To address damp wood boards, first remove excess moisture by air-drying in a well-ventilated area for 7-14 days, ensuring humidity stays below 60%. Sand the surface to remove loose material, then apply a penetrating oil or epoxy resin sealant. For severe rot, replace damaged sections and treat with borate solutions. Regularly inspect and maintain boards to prevent recurrence.

Damp wood boards require prompt intervention to prevent structural degradation. Prolonged moisture exposure causes swelling, warping, and microbial growth, which can lead to 30-50% loss of load-bearing capacity within 48 hours, according to the Forest Products Laboratory (FPL). Air-drying at <60% relative humidity aligns with the American Wood Protection Association (AWPA) standard for preventing mold and decay. Penetrating sealants like linseed oil or tung oil enhance durability by forming a water-repellent barrier, reducing吸湿性 by 70% as shown in a 2020 study by the Journal of Wood Science. Borate treatments disrupt fungal cell membranes, achieving 95% efficacy against common wood-rotting fungi like Trichoderma reesei. Replacing damaged wood is critical, as decayed sections weaken the board beyond repair. Neglecting these steps can escalate costs by 200% due to secondary damage from insects or further moisture retention. Proactive maintenance, including annual inspections and sealant reapplication, extends board lifespan by up to 15 years, per data from the National Woodworking Association (NWA).