Increased elastomer formulations have prolonged the temperature and chemical resistance of rubber joints, while improvements in metallurgy have amplified the corrosion resistance and flexibility of metallic joints. a. Expansion joint rubber flanges has to be in connection with a flat surface area. Typical 1/16″ raised deal with is OK. Unacceptable https://ejmaexpansionjointstandar57923.liberty-blog.com/39712715/rumored-buzz-on-flue-duct-expansion-joint