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18-29-304.4  Openings for pipes.
   In or on structures where openings have been made in walls, floors or ceilings for the passage of pipes, such openings shall be closed and protected by the installation of approved metal collars that are securely fastened to adjoining structure. Openings shall have a cover consisting of concrete not less than 2 inches (50 mm) thick, heavy galvanized wire netting of 1/2 inch (12 mm) mesh, or other means for preventing passage of rodents. These requirements shall be in addition to any protection for penetrations of fire-rated assemblies required in Chapter 15-8.
18-29-305  Protection of Pipes and Plumbing System Components.
18-29-305.1  Corrosion.
   Pipes passing through walls and floors made of cinder, concrete, or other corrosive material shall be protected against external corrosion by a protective sheathing or wrapping or other means that will withstand any reaction from lime and acid of concrete, cinder or other corrosive material. Sheathing or wrapping shall allow for expansion and contraction of piping to prevent any rubbing action and shall be comparable with fire stops where these are required by provisions of Titles 13 and 15 . Minimum wall thickness of material shall be 0.025 inches (0.64 mm).

 

Notes

Titles 13
The hyper-linked material is not part of the Chicago Building Code infobase and therefore is not included herein.  The material is included in other provisions of the Chicago Municipal Code.  The complete Chicago Municipal Code is available for purchase from American Legal Publishing in both print and Folio® versions.  Please click here for the appropriate American Legal order form in printable Adobe® PDF format.  For additional information, you may visit American Legal's website by clicking here.
15
The hyper-linked material is not part of the Chicago Building Code infobase and therefore is not included herein.  The material is included in other provisions of the Chicago Municipal Code.  The complete Chicago Municipal Code is available for purchase from American Legal Publishing in both print and Folio® versions.  Please click here for the appropriate American Legal order form in printable Adobe® PDF format.  For additional information, you may visit American Legal's website by clicking here.
18-29-305.2  Breakage.
   All pipes passing under or through walls shall be protected from breakage. All metal pipes passing through or in contact with walls and floors made of concrete or other corrosive material shall be protected against external corrosion.
18-29-305.3  Stress and strain.
   Piping in a plumbing system shall be installed so as to prevent strains and stresses that exceed the structural strength of the pipe. Where necessary, provisions shall be made to protect piping from damage resulting from expansion, contraction and structural settlement.
18-29-305.4  Sleeves.
   Annular spaces between sleeves and pipes shall be filled or tightly caulked in an approved manner. Annular spaces between sleeves and pipes in fire-resistance-rated assemblies shall be treated in accordance with Section 15-8-570.
18-29-305.5  Pipes through or under footings or foundation walls.
   Any pipe that passes under a footing or through a foundation wall shall be provided with a relieving arch. Alternatively, a pipe sleeve may be built into the foundation wall. Such sleeve shall be two pipe sizes greater than the pipe passing through the wall.
18-29-305.6  Freezing.
   A water, soil vent or waste pipe shall not be installed outside of a building, in attics or crawl spaces, nor concealed in outside walls or in any other place subjected to freezing temperature, unless adequate provision is made to protect it from freezing by insulation or heat or both. Water service pipe shall be installed not less than 60 inches (1525 mm) below grade.
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