How is Grace Vycor® Plus different from Grace Vycor® V40?
Grace Vycor Plus is a 25 mil self-adhered flashing that provides premium protection against water, air and moisture leaks. It is designed to work in severe winter climates, milder climates and in coastal areas where wind-driven rain is common. It can be safely used with wood, plywood, concrete and masonry. Grace Vycor V40 Weather Barrier Strips offer this same protection in 40 mil. Grace Vycor V40 is also specifically designed to meet the federal code for weather-resistive barriers (see Federal Specification UU-B-790a, Grade A).