knauf roof insulation

135mm Knauf Ceiling Insulation is South Africa’s premium glass mineral wool solution for superior thermal and acoustic performance. With a lab R-value of 3.38 and an installed R-value of 3.78, this 135mm thick roll keeps homes cooler in summer and warmer in winter while slashing energy bills. Manufactured with innovative ECOSE® technology, it is soft to the touch, low-dust, and formaldehyde-free. Each roll covers 9m² (7.5m x 1.2m), features an A/A 1/1 fire rating and excellent NRC 1.13 noise reduction. Perfect for new builds or retrofits, it meets SANS 10400-XA requirements and delivers long-lasting comfort and soundproofing in any South African climate.