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Sarnafil® TG 76-20 Felt PS

Sarnafil® TG 76-20 Felt PS

Polymeric membrane for adhered roof waterproofing

Sarnafil® TG 76-20 Felt PS (thickness 2.0 mm) is a multi-layer, synthetic roof waterproofing sheet based on premium-quality flexible polyolefins (FPO), containing stabilizers, with inlay of glass non-woven and Polyester / Glass mix fleece backing according to EN 13956. Sarnafil® TG 76-20 Felt PS is a hot air weldable, UV-resistant roof membrane, designed to use in all global climatic conditions.

  • Proven performance over decades
  • Various colours available
  • Resistant to permanent UV irradiation
  • High dimensional stability due to glass fleece inlay
  • Resistant against impact load and hail
  • Resistant to all common environmental influences
  • Resistant to micro-organisms
  • Compatible to old bitumen
  • Hot air welding without use of open flames
  • Recyclable
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Product Data Sheet Show all documents

Usage

Waterproofing membrane for fully bonded exposed roofs with Sarnacol® 2142S.       Approved Substrates:
  • Slated/mineralized bitumen sheets; new and aged
  • EPS: compressive strength ≥ 100 kPa (10%), Density > 20 kg/m3
  • OSB, plywood, fibre cement boards
  • Mineral fibre boards (e.g. Bondrock MV)
  • PUR/PIR insulation boards, (e.g. Sarnatherm PIR GT, Kingspan TR 27)
  • Concrete, lightweight concrete
 

Advantages

  • Proven performance over decades
  • Various colours available
  • Resistant to permanent UV irradiation
  • High dimensional stability due to glass fleece inlay
  • Resistant against impact load and hail
  • Resistant to all common environmental influences
  • Resistant to micro-organisms
  • Compatible to old bitumen
  • Hot air welding without use of open flames
  • Recyclable

Packaging

Sarnafil® TG 76-20 Felt PS standard rolls are wrapped individually in a blue PE-foil.

Packing unit:

see price list

Roll length:

15.00 m

Roll width:

2.00 m   

Roll weight:70.50 kg

Colour

Surface:

matt

Colours:

Top surface:

beige
grey (nearest RAL 7040) 

Bottom surface:black

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • Sarnafil® TG 76-20 Felt PS is designed and manufactured to meet the most international recognised standards.
  • Polymeric sheets for roof waterproofing according to EN 13956, certified by notified body 1213-CPD-3914 and provided with the CE-marking
  • Reaction to fire according to EN 13501-1.
  • External fire performance tested according to ENV 1187 and classified according to EN 13501-5: BROOF(t1), also for direct contact to EPS board.
  • Official Quality Approvals and Agrement Certificates and approvals.
  • Monitoring and assessment by approved laboratories.
  • Quality Management system in accordance with EN ISO 9001/14001.
Product Information

Shelf Life

5 years from date of production in unopened, undamaged and original packaging.

Storage Conditions

Rolls must be stored between +5 °C and +30 °C in a horizontal position on pallet, protected from direct sunlight, rain and snow. Do not stack pallets of rolls or any other material during transport or storage.

Product Declaration

EN 13956

Visible Defects

Pass

(EN 1850-2)

Length

15 m (-0 % / +5 %)

(EN 1848-2)

Width

2 m (-0.5 % / +1 %)

(EN 1848-2)

Effective Thickness

2.0 mm (-5 % / +10 %)

(EN 1849-2)

Straightness

≤ 30 mm

(EN 1848-2)

Flatness

≤ 10 mm

(EN 1848-2)

Mass per unit area

2.35 kg/m² (-5 % / +10 %)

(EN 1849-2)
System information

System Structure

Wide range of accessories is available e.g. prefabricated parts, roof drains, scuppers and walkway pads.


The following accessories shall be used:

  • Sarnafil® T 66-15 D Sheet for detailing
  • Sarnafil® T Metal Sheet
  • Sarnabar
  • Sarnafil® T Prep / Sarnafil® T Wet Task Set
  • Sarnacol® T 660
  • Solvent T 660
  • Sarnacol® 2142S
  • Sarnafil® T Clean

Compatibility

Sarnafil® TG 76-20 Felt PS may be installed on all thermal insulations and levelling layers suitable for roofing. No additional separation layer is required. Sarnafil® TG 76-20 Felt PS is suitable for installation directly on top of existing, carefully cleaned, level bituminous roofing, e.g. re-roofing over old flat roofs.
Sarnacol® 2142S single-component PUR adhesive is designed for adhering felt-backed Sarnafil® TG 76-20 Felt PS to standard insulations and substrates. Adhering Sarnafil® TG 76-20 Felt PS by means of Sarnacol®-2142 S is particularly suitable for re-roofing over old bitumen waterproofing. (Not suitable for re-roofing over synthetic, rubber or ECB roofing).
Technical Information

Resistance to Impact

hard subtrate

≥ 1000 mm

soft subtrate

≥ 1750 mm

Hail Resistance

rigid substrate

≥ 28 m/s

flexible substrate

≥ 36 m/s

Resistance to Static Load

hard substrate

≥ 20 kg

soft substrate

≥ 20 kg

Tensile Strength

longitudinal (md)1)

≥ 500 N/50 mm

transversal (cmd) 2)

≥ 500 N/50 mm

1)md = machine direction
2)cmd = cross machine direction

Elongation

longitudial (md) 1)

≥ 2 %

trabsversal (cmd) 2)

≥ 2 %

1)md = machine direction
2)cmd = cross machine direction

Dimensional Stability

longitudinal (md)1)

≤ |0.2| %

transversal (cmd)2)

≤ |0.1| %

1)md = machine direction
2)cmd = cross machine direction

Joint Peel Resistance

≥ 300 N/50 mm

(EN 12316-2)

Joint Shear Resistance

≥ 300 N/50 mm

(EN 12317-2)

Foldability at Low Temperature

< -30 °C

(EN 495-5)

External Fire Performance

BROOF(t1) < 20°

(ENV 1187)

(EN 13501-5)

Reaction to Fire

Class E

(EN ISO 11925-2, classification to EN 13501-1)

Effect of Liquid Chemicals, Including Water

on request

Exposure to Bitumen

Pass 3)

(EN 1548)

3) Sarnafil® T is compatible to old bitumen

UV Exposure

Pass (> 5 000 h / grade 0)

(EN 1297)

Water Tightness

Pass

(EN 1928)

Application

Application Information

Ambient Air Temperature

-20 °C min. / +60 °C max.

Substrate Temperature

-30 °C min. / +60 °C max.
Application steps

SUBSTRATE QUALITY

The substrate surface must be uniform, smooth and free of any sharp protrusions or burrs, etc.
The supporting layer must be compatible to the membrane and free of oil and grease. Cut open any blisters in the old waterproofing and repair. The safety of the existing roof assembly in terms of wind uplift must be ensured. Any insufficiently secured sections or components (e.g. chippings, slating etc.) must be removed to provide a smooth surface.The curing of Sarnacol®-2142 S requires moisture. The base layer may therefore be slightly moist (no puddles). If the relative humidity is below 35 % moisten the adhesive after it has been applied.

APPLICATION

Installation works to be carried out only by Sika instructed contractors for roofing.

Installation of some ancillary products, e.g. contact adhesives / cleaners is limited to temperatures above +5 °C. Please observe information given by Product Data Sheets.
Special measures may be compulsory for installation below +5 °C ambient temperature due to safety requirements in accordance with national regulations.

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