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Natural Building Technologies NBT Pavaroof is a fully breathable roof insulation system with excellent thermal and acoustic performance. It can be used in both new build and in the refurbishment/upgrading of existing roofs. The system is suitable for both over and between rafter insulation on vented pitched roofs above 10 degrees, and is adaptable to all kind of roofing materials such as tiles, slates, steel, zinc and green roofs. It is also suitable for flat roof construction.
NBT Pavaroof is particularly suitable for rooms in roofs and other applications where there can be problems with summer overheating and/or external noise pollution. It offers an excellent solution for breathable building construction and the refurbishment of traditional buildings.
The system uses a water resistant interlocking woodfibre board over the rafters in a thermally unbridged layer, to provide a highly insulated and acoustically efficient roof. The system does not require either a membrane over the outside or a vapour barrier internally.