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Application

The product should be used in conjunction with Garland’s SA Flex Base Sheet as a two layer waterproofing system. Can be applied over wood, concrete or foil faced insulation board.

Description

An SBS (styrene butadiene styrene) polymer modified self-adhesive roofing membrane.

The membrane is reinforced with nonwoven composite polyester fabric, and stabilised with fibreglass which provides high mechanical resistance and high dimensional stability. The bottom face of the membrane is coated with a self-adhesive elastomeric compound which adheres via pressure to the laying surface.

The face is protected by a silicone release film, which is removed during the application process. The upper face of the membrane is protected by mineral slates excluding one side lap, which is covered by a strip of silicone release film.

Designed to offer the security of traditional torch applied membrane at critical areas in the contraction of the waterproofing flat roofs. The laps are one such critical areas and these can be either torch sealed, or hot air welded to guarantee water tightness.

The bottom face of the side lap is covered with a polypropylene textured fabric allowing for a partial self-adhesive bond of the membrane, this feature allows a flame to be used to seal the laps and not risk burning heat sensitive insulation board or other materials.

Features and benefits:

  • Formulated using the highest grade of SBS rubber. The compound ensures good low temperature flexibility. Adequate mixing provides proper phase inversion, which optimises the rubber’s performance.
  • StressPly Flex SA is the top component of a multi-ply roofing system. It combines the advantages of multi-ply protection with the strength, flexibility and elongation of elastomeric systems.
  • Designed to be applied without using a naked flame and is therefore inherently safer than traditional torch applied membranes, where there is a risk of causing a fire within sensitive roof details.
  • CE marked to EN 13707 (reinforced bitumen sheets for roof waterproofing).

Applications:

The product should be used in conjunction with Garland’s SA Flex Base Sheet as a two layer waterproofing system. Can be applied over wood, concrete or foil faced insulation board.

Specification data
Product Reference

StressPly® Flex SA

Standard product features

Material:

  • Reinforcement type: Non-woven composite polyester stabilised with fibreglass.
  • Compound type: Bitumen modified with thermoplastic rubber (SBS).
  • Surface finishing: Upper side: Slate granules. Lower side: Silicone release film.

Technical characteristics:

  • Size to (EN 1848–1, l x w): 10 x 1 m.
  • Mass (to EN 1848–1): 4 kg/m².
  • Watertightness (to EN 1928:2000 Method B): Pass, 60 kPa.
  • External fire performance (to ENV 1187 in accordance with EN 13501-1): Froof.
  • Reaction to fire (to EN 13501-1): Euroclass E.
  • Shear resistance of joint (to EN 12317-1): 600/ 400 N/50 mm.
  • Maximum tensile force (to EN 12311-1): 700/ 500 N/50 m.
  • Elongation (to EN 12311-1): 40/ 45%.
  • Resistance to impact (to EN 12691): 1250 mm.
  • Resistance to static loading (to EN 12730): 15 kg.
  • Resistance to tearing (nail shank) (to EN 12310-1): 200/ 200 N.
  • Dimensional stability (to EN 1107-1): -0.3/ 0.1%.
  • Flexibility at low temperature (to EN 1109) -25°C.
  • Flow resistance at elevated temperature (to EN 1110): 100°C.
  • Water vapour transmission properties (to EN 1931) 20 000 μ.

Literature
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