The NovaFlex Metal Roof Sealant is designed to resist extreme weather conditions, mildew, and UV rays, this adhesive lasts longer than most. It can even be applied from 0 to 120ºF and will set up in two days or less. This sealant is VOC complaint and is also eligible for LEED and NAHB points. Formulated for adhesion and flexibility, NovaGard's metal roof sealant is easy to use and easy to clean up.