Certificate 26/083/1780/1
Detailed datasheet

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 Date created 2026-04-27
 Holder URSA France SAS
Maille Nord III
7 Porte de Neuilly
93160 NOISY LE GRAND
France
 Certificate no. 26/083/1780/1
 Family Extruded polystyrene (XPS)
 Commercial brand(s) (products)
Products Purposes
URSA XPS P N-W CORE - Counter plaster wallboard
- Double masonry wall
- Insulation under screed or floating slab or sealed tile under shaped cement mortar (Panneau de 1500 mm max Epaisseurs de 20 à 240 mm)
- Insulation under sealed tile (Panneau de 1500 mm max Epaisseurs de 20 à 240 mm)
 Plant(s) Saint Avold - France (57)
 Certified thermal conductivity
Thicknesses
mm 		Thermal conductivity
λD W/(m.K)
from 20 to 120  mm 0.032 W/(m.K)
from 140 to 240  mm 0.035 W/(m.K)
Puce Certified thermal resistance
Thicknesses
mm 		Thermal resistances
m².K/W
20 mm 0.60
30 mm 0.90
40 mm 1.25
50 mm 1.55
60 mm 1.85
80 mm 2.50
90 mm 2.80
100 mm 3.10
110 mm 3.40
120 mm 3.75
140 mm 4.00
150 mm 4.25
160 mm 4.55
170 mm 4.85
180 mm 5.10
190 mm 5.40
200 mm 5.70
210 mm 6.00
220 mm 6.25
230 mm 6.55
240 mm 6.85
All resistances
 Specifications for floor applications
Thicknesses
mm 		Classification
from 20 to 60  mm SC1 a2 Ch
from 70 to 240  mm SC1 a4 Ch
 ISOLE classification
Thickness
mm 		I S O L E
from 20 to 50  mm 5 1 3 4 3
from 60 to 240  mm 5 1 3 4 4
 Euroclass(es) Euroclasse F
 Other certified characteristics
Characteristic Value
Thickness tolerance T1
Compressive stress CS(10/Y)250
Dimensional stability under defined temperature and humidity conditions DS(70,90)
Deformation under defined compressive load and temperature conditions DLT(2)5
Traction perpendicular to the surfaces (20 mm) TR(100)
Long-term water absorption by total immersion (de 30 à 240 mm) WL(T)0,7