Loft Insulation

What is Loft Insulation?

Loft insulation is a type of thermal insulation typically used in buildings to improve energy efficiency and reduce heat loss. Most modern loft insulation is made from mineral wool, which consists of tightly packed mineral fibers, usually made from materials like rock or glass, which create a barrier against heat transfer. This insulation is commonly installed in the loft or attic spaces of homes, laid between ceiling joists or rafters, to prevent heat from escaping through the roof. Mineral wool loft insulation is known for its excellent thermal performance, fire resistance, and sound absorption properties, making it a popular choice for both residential and commercial construction projects aiming to enhance comfort and energy savings.

What Sizes Does Loft Insulation Roll Come In?

We offer our Loft Insulation Rolls in a range of thicknesses:

100mm, 150mm, 170mm, 200mm.

Designed to fit the depth of your ceiling joists. Loft insulation Roll is unique in that it is perforated at multiple points along the breadth of the roll, to allow you to split them to fit the width of the space as required, or leave as full sheets. 

How to Install Loft Insulation Roll

To install loft roll insulation, first, ensure safety gear like gloves, goggles, and a mask are worn. Measure the distance between the joists in the loft space and cut  or separate the insulation rolls accordingly. Unroll the insulation and fit it snugly between the joists, ensuring there are no gaps or spaces. Use a utility knife to trim any excess insulation if necessary. Take care not to compress the insulation excessively, as this can reduce its effectiveness.

Knauf Loft Insulation Roll

Our Knauf insulation is Knauf's Loft Roll 44, which is one of the most popular types of loft insulation and is sold in a variety of thicknesses from 100mm to 200mm to best suit your project. It is sold in a single roll that is perforated along it's length to allow it to be split into 2 x 570mm width or 3 x 380mm width pieces, depending on the size of your joist cavity. Knauf Loft insulation has a thermal conductivity of 0.044y W/mK and a fire rating of Euroclass A1.

Isover Loft Insulation Roll

Isover is an effective loft insulation roll made from glass mineral wool that is sold in a continuous roll. Similar to Knauf loft insulation roll, it is pre-perforated (3 x 386mm or 2 x 580mm widths) to allow you to adjust it to the spacing between your joists.