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Gas piping shall not penetrate building foundation walls at any point below grade. Gas piping shall enter and exit a building at a point above grade and the annular space between the pipe and the wall shall be sealed.
Gas piping shall not penetrate building foundation walls at any point below grade. Gas piping shall enter and exit a building at a point above grade and the annular space between the pipe and the wall shall be sealed ...
Gas piping shall not penetrate building foundation walls at any point below grade. Gas piping shall enter and exit a building at a point above grade and the annular space between the pipe and the wall shall be sealed ...
Penetrations into enclosures for exit access stairways and ramps , interior exit stairways and ramps , and exit passageways shall be allowed only where permitted by Sections 1019, 1023.5 and 1024.6, respectively ...