FAQ
- What are the White marks on the under side of the Onduline sheet?
- Can you install Onduline sheets on a Pent Shed?
- Can you replace Asbestos sheets with Onduline?
- Are Onduline's sheets the same as Asbestos sheets?
- Can you lay Onduline on top of Asbestos?
- Do Onduline sheets contain asbestos?
- Do you need to remove the plastic strip on the BARDOLINE shingle strip?
- How thick should the roof deck be?
- Can you drill a hole in the sheets to install a flue?
- What is the size of ONDUVILLA tiles?
- What is the role of the embossed lines?
- Do you supply Onduvilla tiles in different lengths?
- What is ONDULINE® Sealsmart technology?
- What is the size of an Onduvilla ridge?
- About the importance of bitumen content and HOMOGENEOUS IMPREGNATION.
- How long does the ONDULINE guarantee last?
- Can you stand on the classic sheets if the roof under them is solid?
- ONDULINE® sheets are in compliance with European Norm EN 534:2010+A
- Is Onduline Fire Resistant?
- When should I use ONDUTISS AIR Membranes?
- What colours are ONDUVILLA tiles available in?
- Do you sell clear PVC sheets to match Onduline profile?
- What is the overhang needed for Onduline sheets?
- What is the minimum pitch for Onduline sheets?
- Do you supply Onduline in different lengths?
- What is the difference between Onduline and Coroline?
- Does the onduline material melt in hot weather?
- How long are Onduvilla tiles guaranteed for?
- Are Onduvilla tiles fire resistant?
- What are Onduvilla tiles made from?
- Can I use Onduline bitumen sheets for cladding?
When should I use ONDUTISS AIR Membranes?
ONDUTISS roof membranes preserve the waterproofing of roofs and buildings.
The ONDUTISS range of products are high vapour permeable membranes, suitable for cold and warm roof applications.
ONDUTISS 95 should be used with the full range of Onduline corrugated sheets and ONDUVILLA tiles.
The Onduline sheets and tiles are resistant to the build up of condensation. However any single thickness roofing material is at risk of condensation formation during the winter months.
Generally air movement generated by the installation of high and low level ventilation will reduce this risk. Onduline's ONDUTISS membranes will significantly assist with in this provision.

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