ULTRAFLEX

SBS-modified bitumen roofing and waterproofing underlay membrane

USEFUL

SBS-modified bitumen membrane ULTRAFLEX is designed for installation as the bottom layer in double-layer roofing system on buildings and constructions, for waterproofing of foundations and engineering structures. Can be used as an underlay for bitumen shingles on pitched roofs. Used for new construction or repair.

The material withstands temperature fluctuations and high mechanical loads providing a long-term, reliable and effective waterproofing. SBS polymer provides additional flexibility and dynamic resistance.

On the bottom side, the material is covered by a polymer film with special graphic elements, melting of which indicates the proper material heating. On the top side, the material is covered by a polymer film.

Product technical data

PROPERTIES ULTRAFLEX A
2 mm 		ULTRAFLEX A
3 mm 		ULTRAFLEX A
4 mm
Thickness, mm
Thickness, mm 2.0±0.20 3.0±0.20 4.0±0.20
Mass per unit area, kg/m2
Mass per unit area, kg/m2 2.8±0.28 3.8±0.38 5.1±0.48
Length x width, m
Length x width, m 15 x 1 10 x 1 10 x 1
Softening point, °C
Softening point, °C ≥110 ≥110 ≥110
Flexibility at low temperature, °C
Flexibility at low temperature, °C ≤-10 ≤-10 ≤-10
Flow resistance at elevated temperature, °C
Flow resistance at elevated temperature, °C ≥100 ≥100 ≥100
Elongation L / T, %
Elongation L / T, % 45±9 / 50±10 45±9 / 50±10 45±9 / 50±10
Tensile strength L / T, N/50 mm
Tensile strength L / T, N/50 mm 850±170 / 650±130 850±170 / 650±130 850±170 / 650±130
Tear resistance L / T, N
Tear resistance L / T, N 350±100 / 350±100 350±100 / 350±100 350±100 / 350±100
Reinforcement type
Reinforcement type polyester polyester polyester
Protective covering type on the top
Protective covering type on the top
 polymer film
 polymer film
 polymer film
Protective covering type on the bottom
Protective covering type on the bottom
 polymer film 
 polymer film
 polymer film