As Texas settled into a deadly-serious Polar Vortex, you could predict the pattern emerging based on your own past experiences with bitter-cold sustained weather conditions: No-heat calls inundating your emergency calls; heating systems not able to keep up with demand; heating systems stressed to the breaking-point; followed by frozen water lines, water services and water mains; and then biblical flooding and damage once thawing temperatures arrived.
The Plastics Pipe Institute (PPI) published a new technical report related to the break resistance of PEX pipe and tubing when fluid inside becomes frozen.