SA BASE is a self-adhesive base sheet membrane composed of  SBS modified bitumen with a glass mat reinforcement. The surface is sanded, while the underface is covered with a split-back silicone release film.


  • When directly adhered on plywood and used in combination with SA CAP GR, it offers a unique self-adhesive system that is UL 790 Class A classified.
  • Clean, fast and easy installation
  • Remains flexible at low temperatures
  • Effective and durable
  • No special tools required
  • Dimensionally stable


Surface Sanded
Underface Self-adhesive, covered with a split-back release protection film
Thickness 88 mil (2.2 mm)
Minimum application temperature 50 °F (10 °C)


BarcodesDimensionsBrute Area / NetWeight 
8 86442 07022 739 in x 49 ft (1 m x 15 m)159 ft² (15 m² ) 146 ft² (13.6 m² )84 lb (38 kg)


BarcodesUnits per boxeUnits per palletBoxes per palletWeight per pallet 
8 86442 07022 7116161396 lb (633 kg)

Surface Preparation

The use of RESISTO EXTERIOR PRIMER, RESISTO H20 PRIMER or RESISTO LOW V.O.C. PRIMER is required before the installation of SA BASE base sheet membrane. The substrate should be clean, sound, dry and free of any loose materials, grease and contaminants, which may compromise the performance of the product.


SA BASE membrane must be adhered to the primed deck by peeling off the split-back release protection film.
Once installed, pressure must be applied over the whole surface using a membrane roller to ensure good contact.
Side lap joints must be a minimum of 3 in (75 mm) and end lap joints a minimum of 6 in (150 mm). Moreover, the 6-inch end lap to be overlapped has to be primed with RESISTO EXTERIOR PRIMER, RESISTO LOW V.O.C. PRIMER or RESISTO H2O PRIMER.

Complementary Products

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