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Technoelast APP EPP Underlay

Third party certifications:
  • BBA Agrément Certificate

    Certificate type

TechnoNICOL

Torch-applied, atactic polypropylene (APP) modified bituminous underlay.

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+44 (0) 1786 451170 www.tnroofingsystems.com/
Application

  • Designed to suit requirements of both new build and remedial roofing applications.
  • It can be applied to all suitable non-combustible substrates as an underlay in built-up waterproofing systems or as a vapour control layer on newly built or refurbished flat roofs.
  • Can also be used as the top layer in certain built-up ballasted waterproofing systems. The product is not recommended for use as single layer waterproofing.

Description

A high performance polyester reinforced torch-on underlay, saturated and coated with high quality atactic polypropylene (APP) modified bitumen. The APP polymers provide the membrane with dimensional stability and slump resistance at high temperatures. The membrane carrier is a tough polyester reinforcement, giving the material good dimensional stability and very high mechanical strength. The membrane is finished on both sides with a thermofusible film for fast and consistent torch-on application.

Features and benefits:

  • Independently tested by the British Board of Agrément.
  • Guided (snowflake print) rapid melt film for accurate and consistent torch-on application.
  • Low temperature flexibility at -15°C.
  • High puncture resistance
  • High resistance to foot marking.
  • Manufactured to EN 13707: 2004 + A2: 2009 and EN 13969 + A1: 2006.
  • CE marked.

Applications:

  • Designed to suit requirements of both new build and remedial roofing applications.
  • It can be applied to all suitable non-combustible substrates as an underlay in built-up waterproofing systems or as a vapour control layer on newly built or refurbished flat roofs.
  • Can also be used as the top layer in certain built-up ballasted waterproofing systems. The product is not recommended for use as single layer waterproofing.

General information
Specification data - Reinforced bitumen roofing sheets
Product Reference

Technoelast APP EPP Underlay

Standard product features

Size (l x w):

8 x 1 m.

Weight:

4.8 kg/m² (±0.2).

Technical characteristics:

  • Reinforcement type and weight: Polyester, 190 g/m².
  • Tensile properties maximum tensile force (to EN 12311-1): 970/ 690 N/50mm (±194 /138).
  • Tensile properties elongation (to EN 12311-1): 50/ 50% (±15).
  • Resistance to tearing (nail) (to EN 12310-1): 210/ 210 N (±63/ 63).
  • Flow resistance at elevated temperatures (to EN 1110): ≥120°C.
  • Flexibility at low temperatures (to DIN to EN 1109): ≤-15°C.
  • Watertightness (to EN 1928): 300 kPa.
  • Water vapour transmission properties (to EN 1931): µ=20 000.
  • Reaction to fire (to EN 13501-5/ to ENV 1187: 2002, test 4): Broof (t4).
  • Chemical resistance: Water-resistant and is resistant to watery solutions of salt, diluted non-oxidising acids and bases. Aliphatic and aromatic hydrocarbons, as well as chlorine hydrocarbons, oils and greases may loosen the product and should therefore be avoided.

Third party certifications
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