Folie Metal Alu
A specialist membrane for metal roofing systems. Check its position in the roof build-up and substrate compatibility using the product documentation.
Request configuration ↗CHOOSE A SYSTEM
BILKA CRAIOVA / BILKA systems
Roof membranes BILKA in Craiova
Underlays, vapour control layers and specialist membranes; compatibility depends on the roof build-up.
BILKA / ROOF MEMBRANES
TECHNICAL ILLUSTRATIONVisual created for this local presentation
DIFFUSION · W1 WATER TIGHTNESS
Roof membranes
A membrane should not be selected by weight alone. Pitch, build-up, temporary exposure, mechanical strength and vapour transfer all matter.
95–180 g/m²diffusion range
W1water tightness
Sd ≈ 0,02 mvapour diffusion
75 m²typical roll
01 / VARIANTS
Compare the available options.
The final variant is confirmed after survey, pitch, build-up and installation details.
Membrană Soundcontrol
An option for acoustic control in selected metal systems. It does not replace complete insulation design; application is confirmed for the chosen panel.
Request configuration ↗Membrană Dripstop
A membrane for condensation management in compatible configurations. Check ventilation and usage conditions before including it in your project.
Request configuration ↗Folie 200g
BILKA roof underlay in the 200 g/m² range. Compare weight alongside strength and vapour permeability using the technical sheet.
Request configuration ↗AntiDrop 100
A BILKA underlay for protecting the roof build-up. Choose it using permeability, exposure and overlap documentation rather than its name alone.
Request configuration ↗Folie ALU 150
Folie ALU 150 is part of the aluminized membrane range. Its vapour-control role and placement within the roof build-up follow the documentation.
Request configuration ↗Folie ALU 90
Folie ALU 90 is part of the aluminized membrane range. Its vapour-control role and placement within the roof build-up follow the documentation.
Request configuration ↗Folie 180g
BILKA roof underlay in the 180 g/m² range. Compare weight alongside strength and vapour permeability using the technical sheet.
Request configuration ↗Folie 150g
BILKA roof underlay in the 150 g/m² range. Compare weight alongside strength and vapour permeability using the technical sheet.
Request configuration ↗Folie 140g
BILKA roof underlay in the 140 g/m² range. Compare weight alongside strength and vapour permeability using the technical sheet.
Request configuration ↗Folie 120g
BILKA roof underlay in the 120 g/m² range. Compare weight alongside strength and vapour permeability using the technical sheet.
Request configuration ↗Folie 95g
BILKA roof underlay in the 95 g/m² range. Compare weight alongside strength and vapour permeability using the technical sheet.
Request configuration ↗02 / CHARACTERISTICS
Dimensions and technical specifications.
Values are indicative for the family shown; the data sheet and certificate applicable to the order take precedence.
Water tightnessW1
Vapour permeabilitySd ≈ 0,02 m
Temperature range-30…+80°C
Roll width1,5 m
Roll length50 m
Roll area75 m²
Constructionmulti-layer polypropylene membranes, depending on product
04 / WHY IT MATTERS
The system should be planned as a whole.
Not weight alone
Match the membrane to pitch, insulation and roof ventilation.
Protects insulation
Helps vapour escape while limiting external water ingress.
Correct installation
Overlaps, tapes and exposure periods should follow product documentation.
05 / DOWNLOADS
Data sheets, guides and certificates.
PDF data sheets and guides, available right here.
CATALOGUEBILKA residential cataloguePDF · Open document↓WARRANTYBILKA warranty certificatePDF · Open document↓GUIDEHow to choose your roofPDF · Open document↓
BILKA is the manufacturer brand. Documentation and warranties are issued by the manufacturer; the applicable conditions are those in the valid document at the time of order.
YOUR PROJECT
We help you choose the right option.
Send dimensions, photos or a plan. We return with a coherent configuration, not a generic product list.
MANUFACTURER CATALOGUE RANGE
Models and components.
Choose the configuration that fits your project. Availability and lead time are confirmed before ordering.
RESIDENTIAL PROJECT
Folie Metal Alu
A specialist membrane for metal roofing systems. Check its position in the roof build-up and substrate compatibility using the product documentation.
Details and quotation ↗RESIDENTIAL PROJECT
Membrană Soundcontrol
An option for acoustic control in selected metal systems. It does not replace complete insulation design; application is confirmed for the chosen panel.
Details and quotation ↗RESIDENTIAL PROJECT
Membrană Dripstop
A membrane for condensation management in compatible configurations. Check ventilation and usage conditions before including it in your project.
Details and quotation ↗RESIDENTIAL PROJECT
Folie 200g
BILKA roof underlay in the 200 g/m² range. Compare weight alongside strength and vapour permeability using the technical sheet.
Details and quotation ↗RESIDENTIAL PROJECT
AntiDrop 100
A BILKA underlay for protecting the roof build-up. Choose it using permeability, exposure and overlap documentation rather than its name alone.
Details and quotation ↗RESIDENTIAL PROJECT
Folie ALU 150
Folie ALU 150 is part of the aluminized membrane range. Its vapour-control role and placement within the roof build-up follow the documentation.
Details and quotation ↗RESIDENTIAL PROJECT
Folie ALU 90
Folie ALU 90 is part of the aluminized membrane range. Its vapour-control role and placement within the roof build-up follow the documentation.
Details and quotation ↗RESIDENTIAL PROJECT
Folie 180g
BILKA roof underlay in the 180 g/m² range. Compare weight alongside strength and vapour permeability using the technical sheet.
Details and quotation ↗RESIDENTIAL PROJECT
Folie 150g
BILKA roof underlay in the 150 g/m² range. Compare weight alongside strength and vapour permeability using the technical sheet.
Details and quotation ↗RESIDENTIAL PROJECT
Folie 140g
BILKA roof underlay in the 140 g/m² range. Compare weight alongside strength and vapour permeability using the technical sheet.
Details and quotation ↗RESIDENTIAL PROJECT
Folie 120g
BILKA roof underlay in the 120 g/m² range. Compare weight alongside strength and vapour permeability using the technical sheet.
Details and quotation ↗RESIDENTIAL PROJECT
Folie 95g
BILKA roof underlay in the 95 g/m² range. Compare weight alongside strength and vapour permeability using the technical sheet.
Details and quotation ↗Range checked on 2026-10-12 · Official BILKA catalogue ↗