Sarnafil® G 410-15 L Felt
POLYMERIC MEMBRANE FOR ADHERED ROOF WATERPROOFING
Sarnafil® G 410-15 L Felt is a PVC, multi-layer, lacquered, matt finish, weldable sheet membrane for roof waterproofing. Contains a glass fibre reinforcing inlay, ultraviolet light stabilisers and flame retardants to provide a low maintenance and durable membrane. It can be quickly installed as a fully bonded system or as a loose laid ballasted system. Thickness 1,5 mm.
- Proven performance over decades
- Lacquer coated surface
- Various colours available
- Fast installation with Sarnacol® adhesives
- Resistant to UV exposure
- High dimensional stability from glass fleece inlay
- High water vapour permeability
- Resistant to all common environmental influences
- Resistant to mechanical influences
- Resistant to micro-organisms
- Heat weldable
- Recyclable (Delete if recycling facilities or recycling offerings for roofing membranes are not available in local country)
Usage
Sarnafil® G 410-15 L Felt may only be used by experienced professionals. Waterproofing membrane for:- Fully bonded, exposed roofs
- Ballasted roofs (e.g. Green roofs, Utility roofs, Inverted roofs, Gravel roofs)
Advantages
- Proven performance over decades
- Lacquer coated surface
- Various colours available
- Fast installation with Sarnacol® adhesives
- Resistant to UV exposure
- High dimensional stability from glass fleece inlay
- High water vapour permeability
- Resistant to all common environmental influences
- Resistant to mechanical influences
- Resistant to micro-organisms
- Heat weldable
- Recyclable (Delete if recycling facilities or recycling offerings for roofing membranes are not available in local country)
Packaging
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: | 66,00 kg |
Colour
| Surface: | matt |
| Colours: | |
| Top Surface: | light grey (nearest RAL 7047) lead grey (Sika colour no. 9500) |
| Bottom surface: | dark grey |
Top surface colour available in other colours 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
- BRE Environmental Product Declaration (EPD)
APPROVALS / STANDARDS
- CE Marking and Declaration of Performance to EN 13956 - Polymeric sheets for roof waterproofing
- FM Approved, Certificate of Compliance, Sarnafil® G 410 EL Felt, Approval Identification No. 3047304
Chemical base
Polyvinyl Chloride (PVC)
Shelf life
5 years from date of production.
Storage conditions
Product must be stored in original unopened and undamaged sealed packaging 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 other, or under pallets of any other materials during transport or storage. Always refer to packaging.
Product Declaration
EN 13956 - Polymeric sheets for roof waterproofing
Visible Defects
| Pass | (EN 1850-2) |
Length
| 15,00 m (-0 / +5 %) | (EN 1848-2) |
Width
| 2,00 m (-0,5 / +1 %) | (EN 1848-2) |
Effective Thickness
| 1,5 mm (-5 / +10 %) | (EN 1849-2) |
Overall Thickness
| 1,5 mm (-5 / +10 %) | (GB 12952) |
Straightness
| ≤ 30 mm | (EN 1848-2) |
Flatness
| ≤ 10 mm | (EN 1848-2) |
Mass per unit area
| 2,20 kg/m² (-5 / +10 %) | (EN 1849-2) |
System Structure
The following products must be considered for use depending on roof design:
- Sarnafil® G 410-12EL sheet for detailing
- Sarnafil® Metal Sheet
- Sarnabar®
- Sarna Seam Cleaner
- Sarnacol® 2170 / 2172 Spray (contact adhesive)
- Sarna Cleaner
Ancillary Products: Prefabricated parts, roof drains, scuppers, walkway pad, decor profiles and protection sheets.
Compatibility
Not compatible in direct contact with bitumen, tar, fat, oil, solvent containing materials and other plastic materials, e.g. expanded polystyrene (EPS), extruded polystyrene (XPS), polyurethane (PUR), polyisocyanurate (PIR) or phenolic foam (PF). These materials could adversely affect the product properties.
Resistance to Impact
| hard substrate | ≥ 500 mm |
| soft substrate | ≥ 1250 mm |
| watertight |
Hail Resistance
| rigid substrate | ≥ 17 m/s |
| flexible substrate | ≥ 25 m/s |
Resistance to Static Load
| soft substrate | ≥ 20 kg |
| rigid substrate | ≥ 20 kg |
| watertight |
Tensile Strength
| longitudinal (md)1) | ≥ 650 N/50 mm |
| transversal (cmd)2) | ≥ 650 N/50 mm |
| ≥ 120 N/cm |
1) md = machine direction 2) cmd = cross machine direction
Elongation
| longitudinal (md)1) | ≥ 65 % |
| transversal (cmd)2) | ≥ 65 % |
| ≥ 100 % |
1) md = machine direction 2) cmd = cross machine direction
Dimensional Stability
| longitudinal (md)1) | ≤ |0,2| % |
| transversal (cmd)2) | ≤ |0,1| % |
| ≤ 0,1% |
1) md = machine direction 2) cmd = cross machine direction
Tear Strength
| ≥ 220 N | (GB/T328.19) |
Joint Peel Resistance
| Failure mode: C, no failure of the joint | (EN 12316-2) |
| ≥ 3 N/mm | (GB/T328.21) |
Joint Shear Resistance
| ≥ 600 N/50 mm | (EN 12317-2) |
Foldability at Low Temperature
| ≤ -25 °C | (EN 495-5) |
| no crack | (GB/T328.15) |
Reaction to Fire
| Class E | (EN ISO 11925-2, classification to EN 13501-1) |
| E | (GB 8624 / EN 13501-1) |
Effect of Liquid Chemicals, Including Water
| Tensile strength retention | ≥ 85% |
| Elongation retention | ≥ 80% |
| Low temperature bend | no crack |
Retention of Properties after Heat Ageing
| Tensile strength retention | ≥ 85% |
| Elongation retention | ≥ 80% |
| Low temperature bend | no crack |
Resistance to UV Exposure
| Pass (> 5000 h / grade 0) | (EN 1297) |
Artificial Ageing
| Tensile strength retention | ≥ 85% |
| Elongation retention | ≥ 80% |
| Low temperature bend | no crack |
Water Absorption
| wet weight | ≤ 4% |
| dry weight | ≥ -0.4% |
Watertightness
| Pass | (EN 1928) |
| Watertight | (GB/T328.10) |
Solar Reflectance
| 0,80 | (GJB 2502.2) |
Solar Reflectance Index
| 106 (white, initial) | (ASTM E 1980) |
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
SUBSTRATE QUALITY
The substrate surface must be uniform, smooth and free of any sharp protrusions or burrs, etc. Sarnafil® G 410-15 L Felt 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. Metal sheets must be degreased with Sarna Cleaner before adhesive is applied.
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 ballast according to local wind loading conditions. Mechanical fixing along the roof perimeter with Sarnabar® including S-Welding Cord must be used to keep membrane in place. Flat roofs with a minimum 50 mm thick gravel ballast and protective layer:
Install S-Felt protective layer or Sarnafil® Protective Sheet.
Evenly spread washed gravel of 8-16 of 16-32 mm diameter.
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.
Fully bonded roof surfaces and flashings The membrane is bonded to the substrate and flashing by using Sarnacol® 2170 / 2172 Spray contact adhesive.
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.