Reinforced high tear-resistance roofing underlay, with self-adhesive strips

Variant without self-adhesive strips

Advantages

  • Excellent occupational safety, even for large-sized roof tiles, in accordance with DIN 4426
  • Flexible planning of construction schedules thanks to 4 months of outdoor exposure
  • Well-protected building components: highly diffusion-open and maximum protection against driving rain and hail
  • Dry building components: pore-free TEEE functional membrane actively transports moisture to the outside
  • Permanent protection thanks to the high resistance to ageing and heat of the TEEE membrane
  • Provides protection during the construction period: suitable as a temporary covering
  • Quick and reliable adhesion thanks to the integrated ‘connect’ self-adhesive strips on the long edges of the membrane

Areas of application

Diffusion-open roofing underlay for installation hanging freely across all the rafters or else over roof sheathing, MDF and wood-fibre underlay panels, and over all thermal insulation materials, including blown-in insulation materials. Fulfils the requirements of DIN 4426, Clause 5.2 “Devices to protect against falls on roofs” (Table 2 – Tensile strength for sarking membranes as per DIN EN 13859-1, 5.2.6, such as ≥ 450 N/5 cm) for large distances between roof battens due to large-sized roof tiles.

Technical specs

  Material
Protective and covering fleece Polypropylene microfibre
Functional film Monolithic TEEE
Reinforcement Polypropylene non-woven fabric
Self-adhesive strips Water-resistant SOLID adhesive
Property Value Regulation
Colour Anthracite
Surface weight 200 g/m² ; 0.66 oz/ft² x EN 1849-2
Thickness 0.9 mm ; 35 mils EN 1849-2
Water vapour resistance factor µ 167 EN ISO 12572
sd value 0.15 m EN ISO 12572
g value 0.75 MN·s/g
Vapour permeance 21.9 perms ASTM E 96
Fire class E EN 13501-1
Outdoor exposure 4 months
Hail impact resistance Class HR 5 VKF / AEAI
Watertight joints with ‘connect’ adhesive strips or TESCON VANA tape W1 EN 13859-1
Sarking/roofing underlay membrane (Germany) USB / UDB ZVDH-Produktdatenblatt 2024
Suitable as temporary roof covering (Germany) Yes ZVDH
Water column > 2 500 mm ; > 8' 2" EN ISO 811
Watertightness, non-aged/aged* W1 / W1 EN 13859-1
Tensile strength MD/CD 780 N/5 cm / 490 N/5 cm ; 89 lb/in / 56 lb/in EN 13859-1 (A)
Tensile strength MD/CD, aged* 780 N/5 cm / 555 N/5 cm EN 13859-1 (A)
Elongation MD/CD 19% / 14% EN 13859-1 (A)
Elongation MD/CD, aged* 18% / 12% EN 13859-1 (A)
Nail tear resistance MD/CD 430 N / 370 N ; 97 lbf / 83 lbf EN 13859-1 (B)
*) Durability after artificial ageing Passed EN 1297 / EN 1296
Flexibility at low temperature -40 °C ; -40 °F EN 1109
Fall-through protection Passed, even for freely hanging membrane GS-IFA-B03
Safe against fall-through with large-format tiles Passed DIN 4426, 5.2
Temperature resistance Permanent -40 °C to 100 °C ; -40 °F to 212 °F
Thermal conductivity 0.04 W/(m·K) ; 0.3 BTU·in/(h·ft²·°F)
CE labelling Yes EN 13859-1