Can PEX‑A be exposed in mechanical rooms under local fire codes?
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Hey, just a heads up, you should check with your local building or fire inspector. Some areas let you leave PEX-A tubing out in the open in mechanical rooms, but only if it hits certain safety marks.
PEX-A is usually not allowed to be exposed in mechanical rooms if fire codes require flame and smoke-rated materials. It often needs to be concealed or protected with a fire-rated barrier.
Always confirm with local code officials.
Usually yes, but some fire codes require PEX-A in mechanical rooms to be protected with drywall or a thermal barrier—check your local rules first.