GreenStuf Masonry Wall Blanket is designed for the thermal insulation of strapped and lined concrete and masonry walls. It also assists in reducing sound transfer through walls by absorbing resonating noise in the construction cavity. It will not wick moisture through concrete or masonry walls, reducing the potential for mould and moisture damage. GreenStuf Masonry Wall Blanket comes in roll form, pre-cut to fit standard timber strapping widths.