A multi-family fit up project will have existing to remain upper floor and new first floor apt. units. Currently the building is not sprinkled and will have a new sprinkler system.
The contractor wants to run the new sprinkler pipe exposed using CPVC in the existing upper level units. NFPA 13R doesn't seem to prohibit this as Table 5.2.1 does include CPVC (ASTM F442/F442M). I'd like to get your thoughts on this and see if you've come across it. Thanks
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