ULTRAPLAST

APP-modified bitumen roofing and waterproofing underlay membrane

APP-modified bitumen membrane ULTRAPLAST 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. APP polymer provides additional flow resistance that makes it possible to use the material in a very hot climate.

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 ULTRAPLAST A
2 | 3 | 4 mm
ULTRAPLAST B
2 | 3 | 4 mm
Thickness, mm
Thickness, mm 2.0±0.20
3.0±0.20
4.0±0.20
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
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
15 x 1
10 x 1
10 x 1
Softening point, °C
Softening point, °C 150±5 150±5
Flexibility at low temperature, °C
Flexibility at low temperature, °C ≤-6 ≤-2
Flow resistance at elevated temperature, °C
Flow resistance at elevated temperature, °C ≥120 ≥120
Elongation L / T, %
Elongation L / T, % 45±9 / 50±10 40±8 / 45±9
Tensile strength L / T, N/50 mm
Tensile strength L / T, N/50 mm 850±170 / 650±130 750±150 / 600±120
Tear resistance L / T, N
Tear resistance L / T, N 350±100 / 350±100 300±100 / 300±100
Reinforcement type
Reinforcement type polyester polyester
Protective covering type on the top
Protective covering type on the top polymer film polymer film
Protective covering type on the bottom
Protective covering type on the bottom polymer film polymer film