The combination of high humidity, hot sun, tropical rain and salt air could take a significant toll on building materials for island residences, businesses and public places. But wood that is properly pressure treated to fight decay and insect attack will last for centuries and offer island residents the advantages of beauty, economy and availability.
Plantation grown softwoods from certified sources are most widely used in construction, but such timber lacks naturally sufficient durability for many situations. However, the correct treatment combined with good design and maintenance will deliver outstanding performance for any application. Wood preservation has the ability to extend the durability and life of wood built structures. The use of pressure treated wood has been standard building practice in Hawaii for decades, and all structural wood framing is required to be constructed with pressure treated wood. In Hawaii, treated wood is coated with pesticides that specifically prevent termites and other insects from damaging the wood. Other such chemicals used in treated wood are used to make the wood fire retardant or to slow aging due to exposure of extreme temperatures or precipitation.
To help ensure high quality and long lasting treated wood products, the American Wood Protection Association (AWPA) created Standards that are intended to safely and effectively extend the service life of wood. Although the Standards are meant for the wood treating industry in the United States, they are widely recognized worldwide.
Headquartered in Vancouver, Washington, the Western Wood Preservers Institute (WWPI) is a nonprofit member trade organization who has represented the interest of the preserved wood products industry throughout western North America for more than 60 years. The membership consists of companies that either manufacture products or are directly affiliated or provide a service to the preserved wood industry. The primary activity areas of the WWPI include regulatory and market outreach programs aimed at sustaining a viable western North America preserved wood industry.
American Wood Protection Association
Founded in 1904, the American Wood-Preservers' Association (AWPA) is a non-profit organization which is responsible for promulgating voluntary wood preservation standards. AWPA Standards are developed by its technical committees in an open, consensus-based process that involves individuals from all facets of wood preservation: Producers of preservatives and preservative components; producers of treated and untreated wood products; end users of treated wood; engineers, architects and building code officials; government entities, academia, and other groups with a general interest in wood preservation. AWPA's Standards are universally specified for wood preservation in the USA, and are recognized worldwide.
Treated Wood Council
The Treated Wood Council (TWC) serves companies that harvest and saw wood, manufacture wood preservatives, produce pressure-treated wood products, or serve the treated wood industry.