Assess Fire Spread In Floor Voids

Some innovative and structurally efficient uses of massive wood panels, such as cross-laminated timber (CLT), will result in hollow structural sections. Light-weight wood construction as well as heavy timber assemblies using dropped ceilings or raised floors to allow for the passage of building services, can also create horizontal concealed spaces in floor assemblies. Concealed horizontal spaces provide a potential path for fire to spread quickly throughout a building which could go undetected. The review of the NBCC and related standards, namely NFPA 13, identified several requirements that aim to limit the spread of fire in combustible concealed spaces. This project is divided into 2 phases and is intended to address limitations of wood…

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