Certificate 26/089/1841
Detailed datasheet

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 Date created 2026-09-02
 Holder KINGSPAN INSULATION BV
Lorentzstraat 1
7102 WINTERSWIJK
Netherlands
 Certificate no. 26/089/1841
 Family Phenolic foam (PF)
 Commercial brand(s) (products)
Products Purposes
KOOLTHERM K21 FR - Insulation under ventilated wooden cladding
- Cloth insulation
- Cloth insulation
 Plant(s) Tiel - Pays-Bas
 Certified thermal conductivity λD = 0.022 W/(m.K)
Puce Certified thermal resistance
Thicknesses
mm 		Thermal resistances
m².K/W
20 mm 0.90
25 mm 1.10
30 mm 1.35
35 mm 1.55
40 mm 1.80
45 mm 2.00
50 mm 2.25
55 mm 2.50
60 mm 2.70
65 mm 2.95
70 mm 3.15
75 mm 3.40
80 mm 3.60
85 mm 3.85
90 mm 4.05
95 mm 4.30
100 mm 4.50
105 mm 4.75
110 mm 5.00
115 mm 5.20
120 mm 5.45
125 mm 5.65
130 mm 5.90
135 mm 6.10
140 mm 6.35
145 mm 6.55
150 mm 6.80
155 mm 7.00
159 mm 7.20
All resistances
 ISOLE classification
Thickness
mm 		I S O L E
from 20 to 160  mm 3 3 2 2 1
 Euroclass(es) Euroclasse C-s2,d0 face intérieur, couleur clair/pale
Euroclasse B-s3,d0 face extérieur, couleur noir
 Other certified characteristics
Characteristic Value
Thickness tolerance T1
Compressive stress CS(Y)100
Dimensional stability under defined temperature and humidity conditions DS(70,90)
Dimensional stability at defined temperature DS(-20,-)
Dimensional stability at defined temperature DS(70,-)
Short-term water absorption by partial immersion WS2
Closed cell rate CV