Product Data Sheet Show all documents

Sarnafil® TG 66-15

Polymeric membrane for ballasted roof waterproofing

Sarnafil® TG 66-15 is a multi-layer, synthetic roof waterproofing sheet based on flexible polyolefins (FPO), with an inlay of glass non-woven according to EN 13956. Sarnafil® TG 66-15 is a hot air weldable, UV-resistant roof membrane, designed for use in all global climatic conditions. Thickness 1,5mm.

  • Proven performance over decades
  • Resistant to micro-organisms
  • Resistant to root penetration
  • High dimensional stability from glass fleece inlay
  • Compatible with old bitumen
  • Resistant to permanent UV exposure
  • Resistant against impact load and hail
  • Resistant to all common environmental influences
  • Resistant to mechanical influences
  • Hot air weldable
  • No open flame equipment required
 
Product Data Sheet Show all documents

Usage

Sarnafil® TG 66-15 may only be used by experienced professionals. Waterproofing membrane for:
  • Loosely laid, exposed roofs
  • Ballasted roofs with different ballast materials, Green roofs, Utility roofs, Inverted roofs
  • Junctions and flashings on all types of Sarnafil® TG 66, TS 77 and TG 76 Felt waterproofing systems

Advantages

  • Proven performance over decades
  • Resistant to micro-organisms
  • Resistant to root penetration
  • High dimensional stability from glass fleece inlay
  • Compatible with old bitumen
  • Resistant to permanent UV exposure
  • Resistant against impact load and hail
  • Resistant to all common environmental influences
  • Resistant to mechanical influences
  • Hot air weldable
  • No open flame equipment required
 

Packaging

Standard rolls are wrapped individually in a blue PE-foil.

Roll length

20,00 m

Roll width2,00 m
Roll weight60,00 kg

Refer to current price list for packaging variations.

Colour

Surfacematt

Colours

Top surface

beige

grey (nearest RAL 7040)

Bottom surface

black

Top surface in other colours available on request, subject to minimum order quantities.

Product Details

Sustainability / Certifications / Approvals

SUSTAINABILITY

  • Conformity with LEED v4 MRc 2 (Option 1): Building Product Disclosure and Optimization – Environmental Product Declarations
  • Conformity with LEED v4 MRc 3 (Option 2): Building Product Disclosure and Optimization - Sourcing of Raw Materials
  • Conformity with LEED v4 MRc 4 (Option 2): Building Product Disclosure and Optimization - Material Ingredients
  • Conformity with LEED v2009 MRc 4 (Option 2): Recycled Content
  • BRE Environmental Product Declaration (EPD)

APPROVALS / STANDARDS

  • CE Marking and Declaration of Performance to EN 13956 - Polymeric sheets for roof waterproofing

 
Product Information

Product Declaration

EN 13956: Polymeric sheets for roof waterproofing

Chemical base

Flexible polyolefins (FPO) 

Shelf life

5 years from date of production.

Storage conditions

Product must be stored in original unopened and undamaged sealed pack-
aging in dry conditions and temperatures between +5 °C and +30 °C. Store
in a horizontal position. Do not stack pallets of the rolls on top of each oth-
er, or under pallets of any other materials during transport or storage. Al-
ways refer to packaging.

Visible Defects

Pass

(EN 1850-2)

Length

20 m (-0 % / +5 %)

(EN 1848-2)

Width

2 m (-0,5 % / +1 %)

(EN 1848-2)

Effective Thickness

1,5 mm (-5 % / +10 %)

(EN 1849-2)

Straightness

≤  30 mm

(EN 1848-2)

Flatness

≤  10 mm

(EN 1848-2)

Mass per unit area

1,36 kg/m² (-5 % / +10 %)

(EN 1849-2)
System information

System Structure

The following products must be considered for use depending on roof design:

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

Ancillary Products:

Prefabricated parts, roof drains, scuppers, Protection sheets and separation layers.

Compatibility

Sarnafil® TG 66-15 can be installed on all thermal insulation types and levelling layers suitable for roofing. No additional separation layer is required. Sarnafil® TG 66-15 is suitable for installation directly on top of existing, clean, level bituminous roofing, e.g. re-roofing over old flat roofs. Discolouration of the membrane surface may occur if in direct contact with bitumen.
Technical Information

Resistance to Impact

hard substrate≥  800 mm
soft substrate≥  1000 mm

Resistance to Static Load

soft substrate≥  20 kg
rigid substrate≥  20 kg

Resistance to Root Penetration

Pass

(EN 13948)

Tensile Strength

longitudinal (md)1) ≥  9 N/mm²
transversal (cmd)2)≥  7 N/mm²

Elongation

longitudinal (md)1) ≥  550 %
transversal (cmd)2)≥  550 %

Joint Shear Resistance

≥  500 N/50 mm

(EN 12317-2)

Dimensional Stability

longitudinal (md)1) ≤  |0,2| %
transversal (cmd)2)≤  |0,1| %

Foldability at Low Temperature

≤  -45 °C

(EN 495-5)

Watertightness

Pass

(EN 1928)

Exposure to Bitumen

Pass3)

(EN 1548)

Effect of Liquid Chemicals, Including Water

Resistant to many chemicals. Contact Sika Technical Services for additional information.

Resistance to UV Exposure

Pass (> 5000 h / grade 0)

(EN 1297)

Reaction to Fire

Class E

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

Application

Application Information

Ambient Air Temperature

-20 °C min. / +60 °C max.

Substrate Temperature

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

EQUIPMENT

Hot welding overlap seams

Electric hot air welding equipment, such as hand held manual hot air welding equipment and pressure rollers or automatic hot air welding machines with controlled hot air temperature capability of a minimum +600 °C.

Recommended type of equipment:

  • Manual: Leister Triac
  • Automatic : Sarnamatic 681
  • Semi-automatic: Leister Triac Drive

SUBSTRATE QUALITY

The substrate surface must be uniform, smooth and free of any sharp protrusions or burrs, etc.
Sarnafil® TG 66-15 must be separated from any incompatible substrates / materials by an effective separation layer to prevent accelerated ageing.
The supporting layer must be compatible to the membrane, solvent resistant, clean, dry and free of grease and dust.

APPLICATION

Installation procedure
Strictly follow installation procedures as defined in method statements, application manuals and working instructions which must always be adjusted to the actual site conditions.

Fixing method
The roof waterproofing membrane is installed by loose laying and covered with the appropriate roof material according to the roof design and the local wind loading conditions.  Mechanical fixing along the roof perimeter with Sarnabar® including S-Welding Cord must be used to keep membrane in place.

Fully bonded roof junctions and flashings
The membrane is bonded to the substrate and flashing by using Sarnacol® T 660 contact adhesive. Refer to Product Data Sheet.

Hot welding overlap seams
Overlap seams must be welded by electric hot welding equipment. Welding parameters including temperature, machine speed, air flow, pressure and machine settings must be evaluated, adapted and checked on site according to the type of equipment and the climatic conditions prior to welding. The effective width of welded overlaps by hot air must be minimum 20 mm.

Testing overlap seams
The seams must be mechanically tested with screwdriver or steel needle to ensure the integrity/completion of the weld. Any imperfections must be rectified by hot air welding.

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