The best choice is a smart layout, not just stronger fittings.<\/strong><\/p>\n Use approved fittings, follow local code, and keep pipes inside a heated space.<\/strong><\/p>\n Also, slope the lines so they can drain for the winter shutdown.<\/strong><\/p>\n Many plumbers up north use PEX B with crimp or clamp rings.<\/p>\n That does not mean PEX A is wrong.<\/p>\n It may only mean local supply houses stock less of it.<\/p>\n PEX A uses expansion fittings and expansion rings.<\/p>\n Many installers like that system because the connection is clean.<\/p>\n It also avoids the metal crimp ring around the pipe.<\/p>\n Before buying material, check your local plumbing code.<\/p>\n You should also follow the pipe maker\u2019s instructions.<\/p>\n The International Code Council<\/a> is a useful code resource.<\/p>\n Metal fittings may feel stronger in your hand.<\/p>\n But stronger does not always mean safer during a freeze.<\/p>\n When water freezes, pressure can damage many parts.<\/p>\n That includes pipe, fittings, valves, and fixtures.<\/p>\n Plastic fittings may move slightly with the pipe.<\/p>\n Metal fittings may not move as much.<\/p>\n The better plan is to stop trapped water from freezing.<\/p>\n Use fewer hidden fittings when possible.<\/p>\n Place shutoffs and drains where they can be reached.<\/p>\n Keep fittings away from outside walls when you can.<\/p>\n Run supply lines through interior walls.<\/p>\n That is a smart first step.<\/p>\n Add pipe insulation where it helps.<\/p>\n But remember, insulation only slows freezing.<\/p>\n It does not make a cold wall warm.<\/p>\n Try to keep plumbing on the warm side of the wall insulation.<\/p>\n Avoid attics, crawl spaces, and outside wall bays.<\/p>\n Plan every branch so it can drain by gravity.<\/p>\n That matters if the house sits empty.<\/p>\n The Plastics Pipe Institute<\/a> has helpful PEX information.<\/p>\n Renting a room makes winterizing harder.<\/p>\n You may not be able to drain the system.<\/p>\n That means heat loss becomes the main danger.<\/p>\n Electric heat can fail during storms.<\/p>\n Power outages can leave pipes exposed fast.<\/p>\n For that reason, add backup plans early.<\/p>\n Use low-temperature alarms if the house is occupied.<\/p>\n Consider smart sensors that warn you by phone.<\/p>\n Keep cabinet doors open near plumbing during deep cold.<\/p>\n Seal drafts before adding new pipe.<\/p>\n PEX A can work well in a northern remodel.<\/p>\n Use quality fittings from a known brand.<\/p>\n Do not mix systems unless the maker allows it.<\/p>\n Do not trust any pipe to survive a hard freeze.<\/p>\n Design the system to stay warm, drain cleanly, and remain easy to service.<\/p>\n That will matter more than plastic versus metal fittings.<\/p>\n I’m Chris Mayer, writing for Plumbing 101<\/a>.<\/p>\nPEX A Versus Crimp Ring Systems<\/h2>\n
Plastic Fittings Or Metal Fittings?<\/h2>\n
Best Layout For A Cold House<\/h2>\n
Renting Rooms Changes The Risk<\/h2>\n
Final Takeaway<\/h2>\n
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