Glasswool insulation is an ideal solution for providing thermal and acoustic performance in your underfloor.

Product Range


Earthwool® glasswool: Underfloor roll with a wind-wash barrier has been designed to provide superior thermal performance. In windy conditions, the wind-wash barrier will provide added thermal protection by ensuring the thermal performance of the insulation is not reduced by air movement. There are two rolls in each pack and the insulation can be directly stapled in place.

Earthwool® glasswool: Quilted Underfloor segments come completely wrapped in film to ensure the ultimate comfortable install experience in addition to providing ultimate thermal performance. The film provides an additional ‘quilted’ protective layer against the insulation to provide an extremely effective barrier to air movement under the floor, which we like to call a ‘wind-wash barrier’. Without a wind-wash barrier in place, studies* have shown that the thermal performance of insulation can be reduced by up to 27% in windy conditions. With this solution you can be assured the product will perform as intended no matter the weather.


Earthwool® glasswool: Underfloor insulation provides a superior solution for improving the thermal performance of timber frame floors. Adding to the already easy to handle and install qualities of Earthwool® glasswool , the insulation can be stapled in place. Earthwool® glasswool: Underfloor insulation will improve the thermal comfort and energy efficiency of the building in which it has been installed thus keeping it cool in summer and warm in winter. Super-soft to handle and install, Earthwool® glasswool is made using up to 80% recycled glass and with ECOSE® Technology, a sustainable, bio-based binder that contains no added formaldehyde.