Specifically designed for use at ceiling level in between the joists, Knauf Insulation Space Loft Roll is the perfect way to insulate your loft.

Made with Knauf Insulation’s ECOSE® technology, our loft roll is easy to handle, environmentally friendly and will produce low levels of dust, making it the ideal choice for your loft project. It is also made with up to 80% recycled material.

The benefits of insulating your loft

Insulating your loft is one of the most effective ways to keep the heat in during the winter. We recommend a minimum 270mm thickness for loft insulation, but the thicker the better! Homes without insulation could save up to £230 and 600kg of carbon dioxide a year by installing 270mm of insulation.*

How many loft rolls do I need for my space?

Knauf Insulation Space Loft Roll is available in three different thicknesses - 100mm, 170mm and 200mm. UK building regulations require 270mm of mineral wool insulation at ceiling level in a loft so the most common way of achieving this is through 100mm in between the joists and 170mm cross laid on top.

However, increasing the thickness of insulation maximises energy efficiency. New build properties typically use 400-500mm of loft insulation. This is achieved by using 3 layers of insulation; one base layer (100mm) lengthwise between the joists and super top-up (200mm) layers laid at right angles to the joists.

To achieve maximum performance, insulate with 500mm of Space Loft Roll.

*Information provided by Energy Saving Trust. Based on a typical three-bedroom semi-detached gas heated house, with an 89% efficient gas boiler and average gas tariff of 6.2p/kWh and electricity tariff of 24.5p/kWh. Emission savings include all scopes and greenhouse gases expressed as carbon dioxide equivalent.

Correct as of October 2024.