Tapered Roof

ThermalStar® Tapered Roof Insulation

Tapered insulation is a vital component of a building’s envelope. For building designers requiring the highest quality rigid insulation, ThermalStar® Tapered Insulation is a premium grade insulation manufactured to provide architects, specifiers, distributors, and contractors all the features and benefits inherent in a high-quality architectural insulation. ThermalStar Tapered Roof Insulation is recognized for use in direct-to-deck applications and works to drain and insulate dead-level roof decks, providing a stable long-term R-value that will last the lifetime of your structure.

Manufactured under an industry-leading quality control program monitored by UL and ICC-ES, ThermalStar Tapered Insulation meets or exceeds ASTM C578 standards, providing an HFC free, recyclable rigid insulation with a low Global Warming Potential (GWP).


  • Multiple thicknesses and compressive strengths
  • Design flexibility for custom roof profiles
  • Stable, long term R-value to protect your structure for years to come
  • Minimal long-term moisture retention with the ability to dry quickly
  • Environmentally friendly with a low global warming potential and zero ozone depletion potential
  • Limited lifetime warranty for physical and thermal performance