Backing for adhesive tape with thermal resistance

An adhesive tape comprising:

• a multilayer backing film comprising:
• a core layer having a first major surface opposite a second major surface and comprising a thermoplastic polyolefin having a thickness from 30 micrometers (μm) to 270 μm;
• and
• a skin layer bonded to the first major surface of the core layer and having a thickness greater than 7 μm and not more than 50% of the thickness of the core layer, wherein the skin layer comprises an ethylene vinyl acetate copolymer;
• wherein the multilayer backing film has a thermal expansion coefficient of not more than 90 ppm/° C., a Young's modulus of less than 470 megaPascals (MPa) as measured in at least one direction within the plane of the film, and a Young's modulus of not more than 540 MPa as measured in any direction within the plane of the film;
• and
• a pressure sensitive adhesive layer bonded to the second major surface of the core layer,
• wherein the adhesive tape passes a water penetration test in accordance with the American Architectural Manufacturers Association (“AAMA”) 711 document.