Weathering Effects on Fire Retardant Wood Treatments
Weathering effects are defined as degradation of the improved reaction to fire performance achieved by fire retardant treatments due to exposure to climatic strains, mainly at exterior exposures.
Wood is combustible but can still perform very well in fires. However, visible wood surfaces may not fulfill the fire requirements in building codes, and fire retardant treatments may be an option. However, the excellent fire performance of the virgin fire retardant-treated, FRT, wood products may degrade over time, especially in outdoor applications due to climate strains as rain and UV exposure.
There are two different stages of a fire scenario to be considered in the fire safety design of buildings in relation to building materials and structures. These are the initial and the fully developed fire. In the initial fire, the building content is of major importance, but it is not regulated in building...
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