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
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 width | 2,00 m |
| Roll weight | 60,00 kg |
Refer to current price list for packaging variations.
Colour
| Surface | matt |
| 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
- 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 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 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.
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
Ambient Air Temperature
-20 °C min. / +60 °C max.
Substrate Temperature
-30 °C min. / +60 °C max.
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.