Materials:H-Shield CG

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Materials:H-Shield CG

Notice to the Reader:

The roofing assembly / material information published in the RCABC Roofing Practices Manual and offered below does NOT represent a complete set of the manufacturer’s data or specifications. The preparation of a detailed specification is the responsibility of the design authority.

Manufacturer: Hunter Panels
Accepted for RoofStar Guarantee Program
Date TBA
Product Summary
Polyisocyanurate H-Shield CG is a foam core insulation board covered on both sides with a medium weight fiber-glass reinforced facer. This dimensionally stable, durable insulation offers maximum thermal efficiency. Hunter Panels Polyisocyanurate H-Shield CG insulation is UL and FM approved as a system component in certain roofing assemblies. Polyisocyanurate H-Shield CG is also available in tapered form. The industry follows CAN / ULC-S770 test method for determining a 15-year time-weighted average Long Term Thermal Resistance (LTTR).
Nominal Thickness inches (mm)• 1.0 (25)
LTTR R-Value*• 6.0
LTTR C-Value*• 0.167
T-Load Quantity Sq. Ft. (Sq. M.)• 32,384 (3,009)
Flute Span Ability, in. (mm)• 2-5/8 (67)
Minimum Thickness, in (mm)• 0.95 (24)


PropertyTest MethodSpecification Limits
Compressive Strength, psi (kPa)ASTM D1621 Procedure AMinimum 20 (138)
Moisture Vapour Transmission, permsASTM C355Maximum 1.0
Foam core Density, lb / ft3 (kg / m3)ASTM D1622Nominal 2.0 (32)
Flame Spread (foam core)ASTM E84Maximum 25
Service Temperature, range if ºF (ºC)- - --100 (-73) to 250 (121)

Hunter Panels Polyisocyanurate H-Shield CG meets or exceeds ASTM C1289 (Type II, Class 1, Grade 2) and Federal Specification HH-I-1972/2.

Click below for the Technical Data Sheet (TBA).

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