INSULATION   Cellulose fibre loft insulation Sheep's wool thermal insulation About natural insulation Warmcel 100 performance Thermafleece performance What is wrong with ordinary insulation Natural insulation, the environment and health Installation Specify Prices (PDF Document) Natural Insulation: the choice We offer two ranges of natural insulation materials, suitable for most applications. Warmcel 100 is manufactured from fire-retarded recycled newpaper. It is designed, and only really suitable for, loose filling lofts where it offers a real cost-effective alternative to mineral fibre insulation. Thermafleece is manufactured from pure British sheeps wool. It is suitable for sloping ceilings and roofslope insulation, as well as stud walls and dry lining. It is more expensive than mineral fibre insulation or Warmcel 100. It is also possible to have Warmcel blown into loft spaces, roofslopes and vertical studwork by a specialist installer. For more information visit the Warmcel website. Natural Insulation: what to use where LOCATION CONVENTIONAL INSULATION NATURAL INSULATION FROM GBS COMMENTS Loft insulation Glass or mineral fibre Warmcel 100 or Thermafleece Warmcel 100 is significantly cheaper Sloping ceiling/ between rafters Glass or mineral fibre; polystyrene; polyurethane etc. Thermafleece Timber frame/ stud walls/ dry lining Glass or mineral fibre; polystyrene; polyurethane etc. Thermafleece Suspended floors Glass or mineral fibre; polystyrene; polyurethane etc. Warmcel 100 or Thermafleece Use Warmcel 100 if dry and there is access from above. Cavity walls (masonry) Glass or mineral fibre; polystyrene; polyurethane etc; also mineral fibre and polystyrene blown in after construction. No natural alternative at present.