Chicago homeowners: is pex pipe safe and legal in your area? the essential guide

Yes, PEX pipe is allowed in Chicago. The Chicago Building Code specifically permits the use of cross-linked polyethylene (PEX) piping for potable water distribution systems.

Understanding the Chicago Building Code

The Chicago Building Code (CBC) is a comprehensive set of regulations that govern the construction, alteration, and maintenance of buildings within the city limits. The CBC is enforced by the Chicago Department of Buildings (DOB).

PEX Pipe Requirements in the CBC

According to the CBC, PEX pipe must meet the following requirements:

• Material: PEX pipe must be made of cross-linked polyethylene (PEX) that conforms to ASTM F876 or ASTM F877.
• Marking: PEX pipe must be clearly marked with the manufacturer’s name, the ASTM designation (F876 or F877), and the maximum working pressure.
• Installation: PEX pipe must be installed in accordance with the manufacturer’s instructions and the CBC.
• Connections: PEX pipe can be connected using approved fittings such as crimp rings, barbed fittings, or expansion fittings.

Benefits of Using PEX Pipe in Chicago

PEX pipe offers several advantages over traditional copper or galvanized steel piping, including:

• Flexibility: PEX pipe is highly flexible, making it easy to install in tight spaces or around obstacles.
• Corrosion Resistance: PEX pipe is resistant to corrosion, which can extend its lifespan and reduce maintenance costs.
• Freeze Resistance: PEX pipe can withstand freezing temperatures without bursting, making it an ideal choice for outdoor applications.
• Cost-Effective: PEX pipe is generally less expensive than copper or galvanized steel piping.

Considerations for Using PEX Pipe in Chicago

While PEX pipe is allowed in Chicago, there are some important considerations to keep in mind:

• Temperature Limitations: PEX pipe has a maximum working temperature of 180 degrees Fahrenheit.
• Pressure Limitations: The maximum working pressure for PEX pipe varies depending on the type of pipe and fittings used.
• Sunlight Exposure: PEX pipe should not be exposed to direct sunlight for extended periods, as this can damage the material.

Where PEX Pipe Can Be Used in Chicago

PEX pipe can be used in various applications within the Chicago Building Code, including:

• Potable water distribution systems
• Hydronic heating systems
• Radiant floor heating systems
• Snow melting systems

The Bottom Line: PEX Pipe – A Versatile and Code-Compliant Option

PEX pipe is a versatile and code-compliant option for plumbing systems in Chicago. Its flexibility, corrosion resistance, freeze resistance, and cost-effectiveness make it a popular choice for both residential and commercial applications. By adhering to the requirements of the Chicago Building Code and understanding the considerations for using PEX pipe, you can ensure a safe and reliable plumbing system.

What You Need to Learn

Q: Is PEX pipe allowed in all areas of Chicago?
A: Yes, PEX pipe is allowed throughout Chicago, including the city center and surrounding suburbs.

Q: Do I need a permit to install PEX pipe in Chicago?
A: Yes, a plumbing permit is required for any plumbing work, including the installation of PEX pipe.

Q: Can I install PEX pipe myself?
A: While PEX pipe is relatively easy to install, it is recommended to hire a licensed plumber to ensure proper installation and compliance with the Chicago Building Code.

Q: What is the maximum working pressure for PEX pipe in Chicago?
A: The maximum working pressure for PEX pipe in Chicago varies depending on the type of pipe and fittings used.

Q: Can PEX pipe be used for hot water lines?
A: Yes, PEX pipe can be used for both hot and cold water lines.