Breffni Insulation
Attic & Roof Insulation
Why Insulate Your Attic and Roof?
- Attic and roof insulation acts as a barrier, preventing the transfer of heat between your living space and the external environment.
- This helps in maintaining a stable indoor temperature, reducing the need for excessive heating or cooling and ultimately lowering energy bills.
Types of Attic and Roof Insulation


Warmcell Loft Insulation
Minimum Thickness Installed: 300mm
U-value Achieved: 0.15W/m2K
Warmcel 300 Loft Insulation is a wood based cellulose fibre, treated with in-organic salts to provide protection against fire and used as a thermal insulation material which is mechanically blown into attics. Ideal for hard to access areas of the attic.
Loft Insulated Sheets for Access and Storage
Minimum Thickness Installed: 100mm
U-value Achieved: 0.13W/m2K
150mm Insulation is rolled out between the joists and the KORE Loft is fixed the the joists. The Sheet composite is 100mm Silver SD EPS with 18mm tongue and grooved chipboard. Once fixed into place it allows the homeowner to use the attic for storage and safe access.

The Cold Water and Header Tank should be completely insulated with a lagging jacket of 80mm nominal thickness. Underneath the tank should not be fitted with insulation where the underside of the storage tank is less than 300mm above the finished level of insulation. In this situation the insulation should form a skirt around the bottom of the tank. If the storage tank is greater than 300mm above the finished level of the insulation, the insulation should be installed below the tank and underneath the tank should also be insulated.
Attic and roof insulation are investments that pay off in terms of energy savings, improved comfort, and the longevity of your home. Whether you’re building a new home or looking to upgrade your existing insulation, understanding these key elements is essential for creating a more energy-efficient and comfortable living space.
By choosing the right insulation materials and ensuring proper installation, you’ll contribute not only to your personal comfort but also to a greener and more sustainable future.