Hello all… how about a quick blog on PVC pipe and UV protection?
I am often asked about the effects of UV exposure caused by sunlight on PVC sewer pipes and how to provide protection. Many people in the civil engineering industry have concerns with UV exposure and polymeric-based sewer materials (e.g. thermoplastic, PVC, HDPE, other plastic pipe) and believe that these materials, basically, disintegrate under long term exposure. This is not what happens. Like other polymeric materials, PVC pipe can experience some forms of slight degradation, but not disintegration, as a result of long-term UV exposure. A test and study performed by the PVC Pipe Association (formerly known as Uni-Bell) was completed in 1997 called “The Effects of Ultraviolet Aging on PVC Pipe, UNI-TR-5-97”. The report’s findings, after two years of extreme sun exposure in the 12 locations across the US, showed no considerable change to the modulus of tensile elasticity and the tensile strength of the PVC pipe used.