Abstract: A vehicle undersiding is attached to the frame of a vehicle to protect the underneath of the vehicle from external moisture and vapor. The vehicle undersiding is made up of a laminate having a first component comprising a first moisture and vapor barrier attached to a second component comprising a second moisture and vapor barrier. The undersiding provides extended protection to the underneath of the vehicle from damage by road debris and external moisture and vapor.

Abstract: A laminate having a moisture vapor transmission rate greater than one perm is formed from an open mesh fabric having a monolithic liquid barrier and vapor permeable coating provided on a surface thereof. The infiltration of air and bulk moisture to the interior of a building structure can be prevented by incorporating the laminate into the building structure. The laminate can also be used as a window flashing and vehicle undersiding to prevent the infiltration of air and bulk moisture.