Folie i membrany


Characteristic roofing membranes

A roofing membrane acts as an initial roofing layer. It improves tightness of the roof, protects insulation against moisture and constitutes an important element of insulation systems used in pitched roofs. Application of the EUROTOP roofing membrane in the roof structure brings many advantages.

Energy efficiency

Roofing membranes do not require any air gaps between themselves and insulation. Insulation shifted towards membrane
allows for thicker insulating layer of the roof along the whole rafter height which improves roof lagging and ensures energy savings.
High vapour-permeability and watertightness of the EUROTOP membranes guarantee that the insulating material remains
dry and only as such it can ensure high insulating properties. Windproofness and no ventilation gap between insulation and membrane prevents extraction of heat from the insulating material and penetration of moisture contained in the air.

Ease of installation

No need for any ventilation gap above insulation considerably facilitates installation work. Easier membrane installation translates
into time savings, lower costs and reduced risk of workmanship error.

Increased  roof longevity

Thanks to high vapour permeability of membranes, excessive moisture is evaporated from insulation.

Healthy microclimate in the loft

Membranes form a secondary line of protection against rain, snow, moisture and dust which penetrate through the primary roofing.
This gives a guarantee that potential leaks, water from melting snow or condensation are conveyed outside the roof and do not
permeate the insulation layer.

Wide application range

Roofing membranes offered by FAKRO are highly resistant to temperature, thus they can be installed in a number of roof structures, even those covered with metal sheeting.

Wide application rangeWe offer a wide range of membranes and underlays designed to function as primary roofing and protection of insulation against moisture and dust. In order to retain premium quality of offered products, FAKRO is continuously verifying the key parameters
of underlays and membranes such as:

  • tear resistance
  • nail shank tear resistance
  • watertightness
  • roll length and width
  • basis weight

This guarantees that the product distributed under FAKRO brand always retains its declared technical parameters.



Quality control system


Testing resistance to UV radiation   Testing resistance to tearing
Testing resistance to UV radiation   Testing resistance to tearing


On the roof and walls

1. Non-permeable roofing membranes

The non-permeable roofing underlay is a
material shielding insulation and roof structure
from water vapour penetration from habitable
spaces. It is laid between insulation and
finishing elements – most often gypsum
cardboards. It constitutes a barrier for water
vapour forming inside the building, protecting,
at the same time, wooden elements of
the roof structure and insulation against
moisture. The non-permeable underlay fulfils
the function of an additional windproofing
– prevents heat losses as a result of free air
circulation and roof draughts.

Non-permeable roofing membranes

2. Bands for roofing membranes and underlays

The correct installation of non-permeable roofing underlays requires application of proper joining bands. It ensures correct
functioning of the initial roofing layer and non-permeable layer. Any sealing work and damage repair in membranes or underlays
should be performed with the use of purposebuilt bands.

3. Low vapour permeability membranes

The low vapour permeability membranes are products used as initial roofing in sloping roofs. Their basic task as an initial roofing
layer is to seal the primary roofing and protect insulation fitted in the roof structure from moisture. Application of the low
vapour permeable membrane as an initial roofing in case of buildings with habitable loft spaces necessitates the use of lower
ventilation gaps between the membrane and insulating material in the roof structure

4. Membranes with high vapour permability

The EUROTOP membrane is a primary roofing layer which improves roofing tightness. It solves the problems related to condensation water accumulating in insulation and roof structure. The EUROTOP membranes can be used as initial roofing of sloping roofs – in case
of both habitable and non-habitable loft spaces, and in external walls as windproofing.