R2.5 Earthwool FloorShield underfloor batt is manufactured from durable silicone coated glasswool and is faced with an ECOSE glass veil, providing a wind-wash barrier. The wind-wash barrier provides protection from air movement under the floor. The Earthwool underfloor insulation will improve the thermal comfort and energy efficiency of the building in which it is installed. This will help save money in the long run as you will not be needing to turn on the central heating for as long. It is soft and easy to install, and with no added formaldehyde it will not leave you itchy like other insulations can.