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Flood-Resistant Construction Timber

In order to prevent risks to buildings during flooding, wood from sustainable management can be used as flood-resistant material for construction (adaptation), since wood is durable and will normally be structurally sound after severe water exposure during a flood. It can replace construction materials that require more fossil fuel input such as concrete, steel, plastic etc. and, in addition, CO2 is stored in the construction timber (mitigation).

Construction and finishing materials that are resistant to flood damage are needed for buildings in flood-prone areas. Flood-resistant materials are defined as being capable of withstanding direct and prolonged contact with floodwaters without sustaining significant damage. Wood, if properly treated for water damage by pressure preservative treatment, can be used as a flood resistant construction material.

In order for wood to provide service durability fully equivalent to materials that are not susceptible to decay and insect attack, appropriate species have to be selected or wood must be treated or otherwise protected in exposed locations. Extension of service life also means longer sequestration of carbon and less energy consumption in supply of replacement materials.

Construction timber is also recyclable as wood energy as described in the measure Timber Recycling for Wood Energy.