PVC resin supply has been disrupted by Hurricane Harvey. Details about how it will affect prices long-term remains to be seen. What we do know is the areas of Houston affected have high concentrations of refineries and processing plants that all contribute to the production of PVC. Many factories contributing to this industry in the Houston area have either shut down or significantly reduced their production. The current result has been increased prices and decreased availability with many manufacturers rationing supply. So far, the hurricane season has been a major disruption to the price of oil, which tends to affect PVC pricing as well. It remains unknown for how long this will continue, but with panic in the market, price volatility and decreased supply, at least the short-term, is likely.