SikaShield® HB79 MG 4 mm

Hybrid bituminous membrane surfaced with granules and flexible at -25 °C

SikaShield® HB79 MG 4 mm is an SBS and APAO modified bituminous roof waterproofing membrane with a thickness of 4 mm. The upper layer is APAO modified, which provides good heat resistance, the under layer is SBS modified, increasing the elongation and cold flexibility properties. It is reinforced with a dimensionally stable composite inlay of a fiberglass matt compressed between two layers of non-woven spunbond polyetser fabric and is flexible at -25 °C. The top surface is coated with mineral granules, which allows the permanent exposure to UV radiation. The underside of the product has a burn-off film for easy torch-application.

  • Combines the advantages of APAO and SBS bitumen
  • Can be painted immediately after application
  • Easy to install by torching method
  • Fully bonded
  • Highly flexible in cold temperatures
  • High durability
  • High heat resistance
  • Very good mechanical properties (tensile, tear, shear)
  • Tiles can be placed directly onto the membrane