There is provided a sheet material having a walking surface with high slip
resistance. The sheet material has a flexible structural layer laminated to a mesh
layer which has interconnected reinforced strands and protruding nodes to impart
a high coefficient of friction. The high coefficient of friction of the sheet material
provides a roofing underlayment which is safe to walk upon in dry, wet or dusty
conditions, and on steeply sloped surfaces. The sheet material may also be used
as an industrial wrapping material or a fabric.
