CLAD-GARD SA Metal Underlayment consists of a Styrene-Butadiene-Styrene (SBS) rubber modified, self-adhesive blend with a woven slip resistant traction film on the top surface and an opaque release film on the bottom surface. CLAD-GARD SA Metal Underlayment is designed for use as an underlayment with UNA-CLAD mental roofing assemblies. CLAD-GARD SA Underlayment is also suitable for use under mechanically attached tile and shingles.