Cedar shingles can be treated with fire retardant treatments. Some building regulations impose certain restrictions concerning possible fire risk and may require a fire retardant treatment like FRT Exterior® for example, which achieves the following performance
- Euroclass B to BS EN 13501-1 (transposes to Class 0)
- Euroclass C to BS EN 13501-1 (transposes to Class 1)
- AAP60 rating BS 476: Part 3:2004 External Fire Exposure of Roofs
Shingles that are treated with a preservative have a ‘CB rating’.BS 476:Part 3
View our Shingles product page to download more information.