As we have well documented in endless investigations, the failure to protect steel pipe from sweating and corroding at its outside surface produces some of the most widespread and expensive forms of pipe failure.  The extensive branch like layout of any chill water or dual temperature piping system behind finished walls means not only millions to replace, but also massive disruption to building owners and tenants.  When they fail, typically at the smaller diameter threaded risers and take-off lines, water damage alone can easily reach the million dollar mark.

In the majority of cases, the first failure leading to its discovery reveals that the pipe has been totally destroyed.  No corrective measures are available other than full pipe replacement.  Neither internal coatings nor external coatings will provide any benefit, and simply re-insulating the pipe without first stopping the corrosive attack is utterly worthless.

An independent evaluation at any example of “insulation failure” will reveal that other factors are involved – such as the installation of insulation which is too thin, inappropriate for the demand, improperly installed, or missing entirely in areas.  Many other factors exist.  The widely mistaken belief that the paper foil tape sealing the seams of standard fiberglass insulation provides an effective moisture barrier explains most insulation failures.

Recognizing that the insulation installed at chill water and dual temperature piping systems hidden behind sheet rock walls was never expected to see the light of day for the next 40 years helps to explain its condition as well as the poor quality of service it has provided.