The high expansion and contraction ...

The high expansion and contraction rate of metals mandates special provisions in metal vault installations.

Failure to adequately compensate for thermal motion is a common cause of metal cover leaks. With proper design, question s can be greatly minimized. principally standing-seam metal roof (SSMR) assemblies are specifically designed to account for the high expansion rate of metal. This is according to virtue of concealed dips that attach the metal house to structural supports and allow the panels to expand and contract independently -- or float -- during thermal circle of times Improper installation ...