Derbigum Olivine is a bituminous membrane with a mineral upper layer that neutralises carbon dioxide in rainwater. Derbigum bituminous membranes have a 40-year BBA durability approval along with use at zero-falls.
Key Features & Applications
- Derbigum Olivine membranes, have a naturally occurring mineral upper layer that neutralises carbon dioxide via an irreversible chemical reaction when it comes into contact with rainfall
- The Olivine grains decrease in size with each reaction, however the grains are large enough to last 30 years before having completely reacted
- Derbigum Olivine membranes are 100% recyclable
- BBA approved with fully warranted systems available with a life expectancy in excess of 40 years
- Suitable for flame-free and cold application to warm roofs with metal, concrete or plywood decks and inverted roofs with concrete decks
- The high melt point ensures membrane stability in the hottest weather whilst the polyester/glass fibre reinforcement provides high tensile strength
- Manufactured in accordance with ISO 9001:2015 and ISO 14001:2015
Membranes & Insulation
- Derbigum Olivine mineral membrane
- Insulation choice includes PIR, mineral wool, cork, cork/PIR composite and extruded polystyrene to suit specification and U-value parameters
- A wide range of underlays are available, providing superior built-up roofing solutions
- The single layer option offers a higher performance alternative to PVC single ply
Installation & Maintenance
- Installed by a network of Derbigum Registered Contractors
- Built-up systems comprise torch applied membrane with torched laps, single layer systems comprise a cold bonded or mechanically fixed membrane with laps sealed by torch, hot air welding or in cold mastic
- Options for completely flame-free, high speed spray installation are available, achieving 1000+ sq. m per day
- Only minimal routine maintenance is required
https://www.alumascroofing.co.uk/ - Alumasc Roofing: leading supplier of innovative, high-performance flat roof systems, waterproofing and green roof systems
