Skid-resistant roofing underlayment

摘要

An exemplary skid-resistant roofing underlayment provides a pressure-sensitive membrane attached to a carrier support sheet having at least two different plastic films, the carrier sheet being corrugated with ridges in the machine direction to provide skid resistance when the underlayment is installed on a sloped roof. Especially preferred are corrugated, cross-laminated composites having a polypropylene or high density polyethylene layer co-extruded with a linear low density polyethylene layer. An exemplary method for making the roofing underlayment involves corrugating at least two different plastic film layers to provide a carrier support sheet for a waterproofing membrane adhesive layer.