Faq
- How long is BARDOLINE guaranteed for?
- Where can I find Onduline installation instructions?
- How many nails should I user per Onduline sheet?
- What is the minimum pitch for Onduvilla tiles?
- How do you cut an Onduvilla tile?
- How many nails should I use per Onduvilla tile?
- What is the overhang required for ONDUVILLA tiles?
- Can I install I install Onduline sheets upside down?
- Which way up is an Onduline sheet fixed?
- Can I install Onduline roof sheets flat?
- Can I install Onduline sheets on top of the existing shed felt?
- What should my roof pitch be to install Onduline?
- Is watertighness and waterproofing also warrantied for low pitched roofs?
- Can I install ONDULINE CLASSIC as a fence?
- Measuring your roof pitch
- Identifying problems with your roof structure
- What is the condition of my roof structure?
- How do you fix the Onduline ridges?
- What structure is my roof?
- How to fix Onduline Verges and Edges
- Measuring purlin or timber batten spacing / distance
- Fixing Eaves
- Where to fix Onduline accessories
- Fixing the Hip Detail
- What tools are needed for installing Onduline sheets?
- How to Fix the Eaves Trays
- What’s the difference between Onduline roofing and metal roofing?
- Fixing an Eaves Ventilation Strip
- What is the weight of an Onduline sheet?
- Can you fix Onduline to a curved Roof?
- Are Onduline sheets resistant to mould and mildew?
- How can I cut an Onduline sheet?
Can I install Onduline sheets on top of the existing shed felt?
Yes, if it is still in reasonable condition and the deck underneath is good, then you can install directly over the top of this. Although it is best to remove and install ONDUTISS AIR breathable membrane, which enhances the roofs ventilation.
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