About Paratherm® NH tapered polyiso insulation

Paratherm® NH Polyiso Insulation is TCPP-Free, Red List Free, and has several product sustainability declarations. Our formulation now uses a Red List-free, non-halogenated flame retardant.  Paratherm® NH products offer low temperature stable R-value when tested per ASTM C518 at both 75°F and 40°F mean temperatures, making it them higher performing insulation products.  Paratherm® NH polyiso offers the highest thermal value per inch of any rigid insulation foam plastic, meeting the same codes and approvals, with the same offerings as standard formulation polyiso.

Paratherm® NH sloped polyiso products come in a choice of facers: glass fiber reinforced cellulosic organic facer (GRF) or a durable coated glass fiber inorganic facer (CGF) bonded to a core of polyisocyanurate foam insulation. GRF facer is standard, while CGF facer is premium due to its moisture and mold resistance* properties, and higher strength and durability. Paratherm® NH polyiso products are compatible with many Siplast systems and offer a variety of attachment methods.

Paratherm® NH sloped polyisio products are installed in a series of tapered panels combined with flat fill panels to create slope on a flat or low slope roof. The goal of the slope is to drive water from the roof to the drains as quickly and efficiently as possible. Siplast offers full service tapered design and takeoff solutions. To connect with a Siplast Tapered Design specialist, click here.

Approvals:

  • FM 4450/4470
  • Evaluation Report UL ER1306-03
  • UL 1256/790/263
  • State of Florida
  • Miami Dade County Product Control
  • Paratherm NH Tapered only: ASTM C1289 Type II, Class 1, grade 2 (20 psi) or Grade 3 (25 psi)
  • Paratherm NH CG Tapered only: ASTM C1289 Type II, Class 2, grade 2 (20 psi) or Grade 3 (25 psi); ASTM 3273 for resistance to mold growth