Concealed Cavities In Wood Floors

The international building code ibc requires all buildings containing group r occupancies to have sprinklers throughout.

Concealed cavities in wood floors.

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. 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. Without the presence of the fireblockingfire in a concealed space could spread through interconnected concealed spaces as. 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.

Wood structural members can shrink to 19 moisture content as the wood sea sons. However there are some hidden cavities that are harder to spot. Cavities are usually painful and they can be easily spotted by a dentist. Afpa has recommended subdividing the large concealed spaces by draftstopping with materials such as wood sections or.

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. This is particularly so in the case of void spaces above a suspended ceiling in a roof space or in a raised floor system.