What are the two primary risks to tropical timber, and which mitigation approach best addresses them?

• A. Fungal decay and termite attack; use treated timber and moisture control.
• B. Corrosion and UV degradation; apply protective coating and shade.
• C. Warping and cracking; store timber properly and seal ends.
• D. Pest infestation and mold from indoor humidity; install air purifiers and humidity sensors.

Answer: (A)

Two common threats to tropical timber are fungal decay in the humid heat and termite attack. In tropical climates, high moisture and warmth create ideal conditions for fungi to colonize and break down wood, while termites thrive on damp, accessible timber. The best mitigation combines preservative treatment with moisture management. Treated timber has chemicals that resist fungal growth and deter termites, directly reducing both major risks. Moisture control lowers the wood’s moisture content and keeps it drier, which slows fungal activity and makes the environment less attractive to termites. Together, these strategies address the main dangers of tropical timber more effectively than methods that focus on only one issue or on non-critical factors like UV exposure or cosmetic protection.