3W Bitumen

Shingle Underlay

Three-layer insulation material is made of polyester fabric with a bitumen and polymer mixture. It is intended as a base layer for discontinuous roof coverings.

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Benefits

  • Better mechanical properties
  • Resistance to tears and cuts
  • Flexibility at freezing temperatures down to -25°C
  • Resistance to fl ow at temperatures of up to +130°C

Applications

Base layer used on roofs with the pitch between 12° and 75°

Technical Parameters

Mass per unit area: 1000 g/m2 ± 20%
Elongation – longitudinal (MD): (500 ± 150) N/50 mm
Elongation – transverse (CD): (350 ± 100) N/50 mm
Tear resistance – nail shank; longitudinal (MD): (150 ± 50) N
Tear resistance – nail shank; transverse (CD): (150 ± 50) N
Water tightness: Class W 2
Watertightness: Class W 1
Reaction to fire: Class E
Flexibility at low temperature: ≤ -25°C
Size: 20,0 m x 1,0 m (± 0,5%)
Product name Packaging Content Pieces per pallet Pieces per pallet
3W Bitumen Roll 20 20 pcs/ 400 m2 400

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