The international building code ibc requires all buildings containing group r occupancies to have sprinklers throughout.
Concealed cavities in wood floors.
However there are some hidden cavities that are harder to spot.
Without the presence of the fireblockingfire in a concealed space could spread through interconnected concealed spaces as.
Platform framing here s the first of several admittedly simplified examples of what is intended by the code s requirements.
Concealed spaces or cavities in a building provide a ready route or flue for smoke and flame to spread undetected thus increasing the risk to life safety of occupants in the building.
These cavities or hidden caries are often missed in an exam because they are so deeply hidden within the pits and fissures of the teeth.
Stud cavity subfloor finish material 1st flr stud cavity fire in wall cavity walls.
Addressed possible fire spread within the cavities or concealed draft openings in wood frame construction.
Fire protection of concealed spaces cavities hidden voids in the construction of a building provide a ready route for the spreading of smoke and flame.
However the need for sprinklers specifically located in the concealed spaces of floors and roofs is dependent on the type of sprinkler system specified nfpa 13 or nfpa 13r and the use of fireblocking and draftstopping.
Wood structural members can shrink to 19 moisture content as the wood sea sons.
This is particularly so in the case of voids above other spaces in a building such as those above a suspended ceiling or in a roof space and ventilated facades.