Composite roofing elements consisting of a layer of extruded XPS insulation board lined with a bituminous membrane

COPERTHERM XPS is a range of roofing elements in rolls or panels that combine flat or scored EPS boards, and a membrane of polymer modified bitumen. The insulation layer consists of a single layer of self-extinguishing Extruded Polystyrene XPS whereas the membrane liner is a heat-welded plastomer-modified membrane rich in co-polymers and poly-olefins that ensure a perfect bond to the insulation layer as well of all joints.

The whole COPERTHERM XPS range complies with the Italian requirements and of Ministerial Decree 11/10/2017 (CAM - Criteri Ambientali Minimi) about the content of recovered or recycled material.

Features and versions

Thermal-insulating layer

Self-extinguishing and waterproofing extruded expanded polystyrene (EPS).
Available thicknesses (mm): 30, 40, 50, 60, 80, 100, 120.
For thicknesses greater than 60 mm, COPERTHERM XPS is available only in board version.

EN 13164 Reference standard
Thickness (mm) Resistance to compression (kPa) Thermal conductivity (λᴅ)
30 ≥ 250 0,034
40 - 50 ≥ 300 0,034
60 - 80 - 100 ≥ 300 0,036
120 ≥ 300 0,038

Membrane liner

Plastomer-modified waterproofing membranes rich in co-polymers and poly-olefins that ensure a perfect bond to the insulation layer as well of all joints.

Product range Norms Cold flexibility Reinforcement type Upper face finish Available versions
SINTOGLASS EN 13707 -5 °C Glass fibre PE Film 2,0 - 3,0 - 4,0 kg/m²
SINTOPOL EN 13707 -5 °C Stabilized composite polyester PE Film 3,0 - 4,0 kg/m²
SINTOPOL MINERAL EN 13859-1 -5 °C Stabilized composite polyester Self-protecting grey slate flakes 3,5 - 4,0 - 4,5 kg/m²
Copertherm products contribute to achieving LEED® credits.
Non-hazardous waste material
Used-oil free
Chlorine free
Asbestos free
Tar free
Oxidized-bitumen free
Intended use
Flat Roofs
Pitched Roofs
Vaulted Roofs
Industrial Roofs

Recommended destinations of use

COPERTHERM XPS is recommended for use in all applications where a combination of thermal insulation and waterproofing is required: it allows to quickly insulate and waterproof various types of roof constructions including roofs with a complex geometric design.

This factory made combination of polymer-bitumen membrane and heat-sensitive thermal insulation allows for safe, easy and cost effective installation works.
MINERAL versions COPERTHERM XPS have membranes that are self-protected with slate granules and are most suitable for use under slates or tiles and on discontinuous roofs in general.