Kingspan Insulation
Kingspan Group

Kooltherm® K8 Cavity Board

Kooltherm® K8 Cavity Board header

Kingspan Kooltherm® K8 Cavity Board is a premium performance insulation, with a fiber–free rigid thermoset phenolic core, faced on both sides with a low emissivity composite foil facing which is used for insulation in partially filled cavity walls.

The core of Kingspan Kooltherm® K8 Cavity Board is a premium performance rigid thermoset fiber-free phenolic insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP)

ki-fiberfree-core-logo

Product Data
Property Test Method Result
General
Nominal Thickness Made-to-Order
Standard Dimensions
Width (in/mm)
Length (in/mm)

47.25 / 1200
16 / 406.4
Compressive Strength, Min.
(psi)

ASTM C 209

21
Water Absorption, Max
(% by volume)

ASTM C 272

1.15
Density, Min. (lb/ft3)
ASTM C 1621

2
Closed Cell Content
(% of cells closed)

ASTM D 6226

94.67
Air Permeance
(L/S/m2 / cfm/ft2)

ASTM E 2178

0.001 / 0.000
Water Vapor Permeance, Max.1
(perm)

ASTM E 96

0.51
1Permeance shown is for 25mm thick board. Permeance typically decreases as board thickness increases.
Fire Performance
Flame Spread Smoke Developed
25 20