Faq
- How thick should the roof deck be?
- Can you drill a hole in the sheets to install a flue?
- What are the White marks on the under side of the Onduline sheet?
- Can you replace Asbestos sheets with Onduline?
- 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 long are Onduvilla tiles warrantied for?
- Are Onduvilla tiles fire resistant?
- What are Onduvilla tiles made from?
- Can I use Onduline bitumen sheets for cladding?
- 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
- Can you install Onduline sheets on a Pent Shed?
- Is it safe to use Onduline sheets in proximity to a BBQ/Fire Pit?
- Is Onduline Fire Resistant?
- When should I use ONDUTISS AIR Membranes?
- Onduline Bitumen Corrugated Sheets – Disposal Information
- What colours are ONDUVILLA tiles available in?
- Do you sell clear PVC sheets to match Onduline profile?
- Are Onduline's sheets the same as Asbestos sheets?
- 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?
Onduline sheets are non-recyclable waste but are not classed as hazardous waste (unlike asbestos). They should be disposed of according to your local council’s requirements.
These sheets are manufactured from cellulose fibres impregnated with bitumen under heat and pressure. They were specifically designed as a safe, asbestos-free alternative to fibre cement roofing sheets, which commonly contained asbestos before the 1980s–1990s.
Some older roofing products from other manufacturers—particularly fibre cement sheets (often grey and brittle)—may contain asbestos if installed before asbestos bans. Because of this, there is a common misconception that Onduline sheets contain asbestos, but this is not the case.
You may use this information as confirmation for your local council or skip company if required.
Tip: To make disposal easier, Onduline sheets can be cut in half with a handsaw or circular saw so they fit into a car.