All of our information is sourced from manufacturer data.

Hunter Xci Foil

Hunter Panels

Hunter Xci Foil

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Board Insulation Board Insulation

Foam Board Foam Board

Polyisocyanurate Polyisocyanurate

Ducts, Sloped Ceiling Ducts, Sloped Ceiling

In between Wood (or Steel) Studs, In Cavity Wall, Unfinished Floor In between Wood (or Steel) Studs, In Cavity Wall, Unfinished Floor

Design Options

Product Description

Xci Foil is an energy efficient rigid insulation panel composed of a closed cell
polyisocyanurate foam core manufactured on-line to an impermeable foil facing material. It is designed for use in commercial and residential wall applications to provide continuous insulation within the building envelope.
It is manufactured with NexGen Chemistry: Zero Ozone Depleting Potential (ODP) and contains no CFCs, HCFCs or HFCs, virtually zero Global Warming Potential (GWP). Use of Xci products helps reduce the carbon footprint of buildings. It is lightweight yet durable and easy to handle. Cuts with a knife or saw and is suitable for external ductwork as well.



Standard Sizes: 1' 4", 2' 0", 4' 0"


Standard Sizes: 8' 0"


Standard Sizes: 1", 1-1/2", 2", 2-1/2", 3", 3-1/2", 4"

Manufacturer Design Notes

Can be applied to the exterior or interior of exterior walls, when separated from the interior by a 15-minute thermal barrier. Xci Foil may also be applied directly to oil based waterproofing adhesives.

Performance Data

R-Value Per Inch

Measure of the thermal resistance of the product per inch of thickness, imperial units.

°F·ft^2·h / BTU / inch


NRC Value

The Noise Reduction Coefficient values of this product

Fire Resistance

Amount of time the product can withstand fire

Water Vapor Transmission

An imperial perm is defined as 1 grain of water vapor per hour, per square foot, per inch of mercury

perm (imperial)


Smoke Development

As defined by the ASTM E84 testing standard



Measure of the thermal resistance of the product, imperial units.

°F·ft^2·h / BTU

6.5, 10, 13.3, 17, 20.3, 24, 27

Product Weight Per Area

Varies if the product comes in multiple thicknesses.

lbs / ft^2

0.2, 0.7

Minimum Recycled

The minimum amount of the product's input materials that come from recycled sources



Linear Shrinkage

The percent that a product shrinks, usually in response to heat.



Flame Spread

As defined by the ASTM E84 testing standard


Compressive Strength