StressPly® Evolution
Application

Can be used in conjunction with other Garland High Performance Roofing products, as well as with conventional polyester felt underlayment. Specifications for torch applied roofing systems are available. It can also be used to repair splits, cracks or other deteriorated areas of an existing asphalt based roofing system.

Description

An elastomeric modified bitumen waterproofing membrane manufactured in a superior calendaring process by saturating and coating a polyester carrier with a waterproofing compound made from a special grade of modified bitumen, with SBS elastomers and fillers. The SBS modifiers boost the thermal, mechanical and aging characteristics of the membrane compound; the non-woven spun-bond polyester carrier reinforcement provides the membrane with its excellent tensile strength, tear/ puncture resistance and elongation properties. StressPly Evolution upper surface is finished with mineral slate, while the lower face is laminated with thermo-fusible polyethylene film.

Features:

  • High UV resistance – StressPly Evolution with its mineral slate upper finish offers excellent protection from the damaging effects of UV radiation.
  • Excellent chemical and bacteria resistance – the special grade of modified bitumen used in the manufacture of StressPly Evolution has excellent resistance to alkaline solutions, light acidic solutions and bacteria.
  • Superior strength – the StressPly Evolution membrane is reinforced with high strength polyester. The superior strength provided by the polyester scrim resists the movement created by today’s modern buildings. In addition, the polyester scrim in StressPly Evolution provides tensile strength in excess of 1000 N longitudinally. This translates to long-term resistance to splits and tears in the completed StressPly Evolution roof system.
  • Absolute impermeability to water – the exceptional formulation of StressPly Evolution means that the membrane is impermeable to water, coupled with excellent thermal, mechanical and ageing characteristics.

Applications:

Can be used in conjunction with other Garland High Performance Roofing products, as well as with conventional polyester felt underlayment. Specifications for torch applied roofing systems are available. It can also be used to repair splits, cracks or other deteriorated areas of an existing asphalt based roofing system.

General information

Features

High UV resistance – StressPly Evolution with its mineral slate upper finish offers excellent protection from the damaging effects of UV radiation

Excellent chemical and bacteria resistance – the special grade of modified bitumen used in the manufacture of StressPly Evolution has excellent resistance to alkaline solutions, light acidic solutions and bacteria

Superior strength – the StressPly Evolution membrane is reinforced with high strength polyester. The superior strength provided by the polyester scrim resists the movement created by today’s modern buildings. In addition, the polyester scrim in StressPly Evolution provides tensile strength in excess of 1000 N longitudinally. This translates to long-term resistance to splits and tears in the completed StressPly Evolution roof system

Absolute impermeability to water – the exceptional formulation of StressPly Evolution means that the membrane is impermeable to water, coupled with excellent thermal, mechanical and ageing characteristics

Uniclass 2015

Pr_25_57_08_75 Reinforced bitumen roofing sheetsPrimary

CAWS

J41/10 Built-up reinforced bitumen membrane warm deck roof covering

J41/12 Built-up reinforced bitumen membrane cold deck roof covering

J41/400 Built-up reinforced bitumen waterproof covering

Specification data - Reinforced bitumen roofing sheets

Product Reference

StressPly® Evolution

Standard product features

Reinforcement:

Non-woven polyester, reinforced with fibre glass filaments (composite).

Compound type:

Bitumen modified with elastomeric rubber (SBS).

Surface finish:

  • Upper side: Mineral slate.
  • Lower side: Polyethylene film.

Size (l x w):

6 x 1 m.

Thickness:

4 mm.

Technical properties:

  • Breaking elongation (L/ T): 46/ 47%.
  • Dimensional stability: ±0.2%.
  • Low temperature flexibility: -14°C.
  • Resistance to tearing (L/ T): 200/ 300 N.
  • Tensile strength (L/ T): 1040/ 480 N/50 mm.
  • Watertightness: 60 kPa.

Reaction to fire (to EN 13501-1):

Euroclass E.

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