THE IRON-CLAD TRUTH:
Some truths aren’t meant to be heard.
Sound Attenuation
Sound attenuation is crucial in commercial buildings, especially high-rise condominiums, commercial office buildings or high-end hotels. No one wants to hear the gurgling and sloshing of water from floors above flowing down the walls.
That’s why the smart choice is to build with the Quiet Pipe – cast iron. Thanks to a microstructure with graphite flakes that dampen noise, cast iron soil pipe and fittings create a plumbing system that is twice as quiet as an all-plastic system.
In a recent noise trial between material, cast iron stayed silent.
Results of a controlled experiment to measure sound in PVC and cast iron DWV plumbing systems.
NOTE: Most people perceive a 10dB increase in sound level as being twice as loud.
Resources
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CISPI Brochure
All too often, the perceived cost advantages of plastic over cast iron are not what they seem. This brochure will help it all make sense, by comparing six areas that can add cost and complexity: fire resistive construction, crush and deflection underground, thermal expansion/
CISPI Cast Iron Soil Pipe & Fittings Handbook
This newly updated handbook features the latest technical specs, installation guides, manufacturing details, layouts and other useful information for putting cast iron soil pipe and fittings to work for you.
CISPI 301
Standard specification for hubless cast iron soil pipe and fittings for sanitary and storm drain, waste and vent piping applications.