Cocoon Super R2.6 Underfloor Polyester Insulation
Cocoon Super R2.6 Under Floor Insulation - Width Options 450mm, 500mm, 600mm, 650mmfrom NZ$246.15
It comes in pre cut widths designed to be installed between your joists. Available in different widths to suit the joist spacings in most houses. The material grade is an R2.6.