A roofing underlayment, building wrap, rain screen, flashing, sound proofing material, insulation material, and flashing, having a metal look or metal coating, the microporous membrane comprising:
- a thermoplastic polymer;
- optionally a filler, silica, plasticizer, oil, solvent, additive, agent, particles fibers;
- and,
- wherein the microporous membrane exhibits, at least one of:
- hydrophobicity, a water vapor transmission through the membrane of 370 g/m2/24 hour or greater, a contact angle greater than or equal to 90° and less than 180° degrees, and a water vapor permeance value from 5 to 60 perms;
- wherein the membrane comprises ribs on at least one surface and a height from the at least one surface of the microporous membrane to tips of the ribs is at least 7 mm.