Wool Insulation products have recently expanded to include SilentFloor, SilentFloor with Moisture Barrier & SilentJoist. These acoustic underlay products have incredible performace at an unbeatable price. Check out our new Quick Guide to see where these and other Sheep Wool Insulation products can be used in your home. Click here to open the Product Quick Guide.

Insulation Regulations and Requirements.

Sheep Wool Iinsulation slows down the transfer of heat using the millions of tiny air pockets that are trapped between the wool fibres. The greater the depth of isulation, the greater the number of these air pockets and consequently the slower heat will be able to pass through. The depth of insulation you will need will depend on the application you have in mind and the current building regulation requirements. The table below illustrates the current U-value requirements for dwellings as set out in the 2002 Building Regulations Technical Guidance Document L. These regulations came into effect on the 1st of January 2003.

The following diagrams show two common construction methods and give Sheep Wool Insulation depth requirements based on these regulations. If your application is not included below, please contact us to determine your specific requirements.

Dwellings: Attic (Loft) Insulation

Building Regulation U-Value Requirements: 0.16 w/m2K
Any combination of the following configurations will exceed the current building regulations (with associated U-Values)
- 100mm insulation between joists, 140mm insulation over joists (0.15)
- 120mm insulation between joists, 120mm insulation over joists (0.15)
- 140mm insulation between joists, 100mm insulation over joists (0.16)
- 160mm insulation between joists, 80mm insulation over joists (0.16)

Dwellings: External Wall Insulation

Building Regulation U-Value Requirements: 0.20 w/m2K
- 140mm Sheep Wool Insulation between wall studs