Product Data Sheet Show all documents
Sarnafil® G 410-20 L

Sarnafil® G 410-20 L

Polymeric PVC detailing membrane for roof waterproofing

Sarnafil® G 410-20 L (thickness 2,0 mm) is a multi-layer, synthetic roof waterproofing sheet based on polyvinyl chloride (PVC) with a glass non-woven inlay. It contains ultraviolet light stabilisers according to EN 13956 / GB 12952. Sarnafil® G 410-20 L is a hot-air weldable roof membrane, formulated for direct exposure and designed for use in all global climatic conditions.

  • Proven performance over decades
  • Lacquer coated surface
  • Resistant to permanent UV exposure
  • High dimensional stability from glass fleece inlay
  • High water vapour permeability
  • Resistant to all common environmental influences
  • Resistant to micro-organisms
  • Resistant to root penetration
  • Hot-air weldable
  • No open flame equipment required
  • Recyclable
 
Product Data Sheet Show all documents

Usage

Sarnafil® G 410-20 L may only be used by experienced professionals. Waterproofing detailing membrane for:
  • Exposed flat roofs (Sarnafil® S 327 L or Sarnafil® G 410 L Felt)
  • Ballasted roofs e.g. Green roofs, Utility roofs, Inverted roofs, Gravel roofs (Sarnafil® G 476)

Advantages

  • Proven performance over decades
  • Lacquer coated surface
  • Resistant to permanent UV exposure
  • High dimensional stability from glass fleece inlay
  • High water vapour permeability
  • Resistant to all common environmental influences
  • Resistant to micro-organisms
  • Resistant to root penetration
  • Hot-air weldable
  • No open flame equipment required
  • Recyclable
 

Packaging

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

Packing unitRefer to price list
Roll length

15,00 m

Roll width

2,00 m

Roll weight81 kg

Refer to current price list for packaging variations.

Colour

Surface

matt

Colours

Top Surface

white (other colours on request)

Bottom surfacedark grey

Product Details

Sustainability / Certifications / Approvals

ENVIRONMENTAL INFORMATION

  • 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

APPROVALS / STANDARDS

  • CE Marking and Declaration of Performance to EN 13956 - Polymeric sheets for roof waterproofing
  • GB 12952, Sarnafil® G 410-20 L, Test report No. RS19-21
  • Quality Management System in accordance to EN ISO 9001/14001
  • Listed under Hong Kong Green Building Council (HKGBC) & The Construction Industry Council (CIC) ECO-Product Directory
 
Product Information

Product Declaration

EN 13956: Polymeric sheets for roof waterproofing

GB 12952 - Type G

Chemical Base

Polyvinyl Chloride (PVC)

Shelf Life

5 years from date of production.

Storage Conditions

Product must be stored in original unopened and undamaged packaging in dry conditions. 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.

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)

Overall Thickness

2,0 mm (-5 % / +10 %)(GB 12952)

Straightness

≤ 30 mm

(EN 1848-2)

Flatness

≤ 10 mm(EN 1848-2)

Mass per Unit Area

2.57 kg/m² (-5 / +10 %)(EN 1849-2)
System information

System Structure

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

  • Sarnafil® Metal Sheet
  • Sarnabar®
  • Sarna Seam Cleaner
  • Sarnacol® 2170 (contact adhesive)
  • Sarna Cleaner

Ancillary products: wide range of accessories is available e.g. prefabricated parts, roof drains, scuppers, walkway pads and decor profiles

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.

 
Technical Information

Resistance to Impact

hard substrate

≥ 800 mm

soft substrate

≥ 1250 mm

watertight

(GB/T20624.2)

Resistance to Static Load

soft substrate

≥ 20 kg

rigid substrate

≥ 20 kg

watertight

(GB/T328.25)

Resistance to Root Penetration

Pass(EN 13948)

Tensile Strength

longitudinal (md)1)≥ 8.5 N/mm2
transversal (cmd)2)≥ 8.5 N/mm2

longitudinal (md)1)

transversal (cmd)2)

≥ 10 MPa

≥ 10 MPa

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

Elongation

longitudinal (md)1)≥  180 %
transversal (cmd)2)≥  180 %

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

Tear Strength

≥  50 N/mm

(GB/T529)

Joint Peel Resistance

Failure mode: C, no failure of the joint

(EN 12316-2)

≥  3 N/mm

(GB/T328.21)

Dimensional Stability

longitudinal (md)1)

≤ |0,2| %

transversal (cmd)2)

≤ |0,1| %

≤ 0,1 %

(GB/T328.13)

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

Solar Reflectance

0,80

(GJB 2502.2)

Solar Reflectance Index

106 (white, initial)

(ASTM E 1980)

Foldability at Low Temperature

≤  -25 °C

(EN 495-5)

no crack(GB/T328.15)

Water Absorption

wet weight≤  4 %
dry weight≥  -0,4 %

Water Tightness

Pass

(EN 19289)

watertight(GB/T328.10)

Resistance to UV Exposure

Pass (> 5 000 h / grade 0)(EN 1297)

Resistance to Weathering

tensile strength retention
≥   85 %
elongation retention

≥  90 %

low temperature bend

no crack

Retention of Properties after Heat Ageing

tensile strength retention

≥ 85 %

elongation retention

≥ 80 %

low temperature bend

no crack

Reaction to Fire

Class E

(GB 8624 / EN13501-1)

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

SUBSTRATE QUALITY

The substrate surface must be uniform, smooth and free of any sharp protrusions or burrs, etc. Sarnafil® G 410-20 L 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.


Flashings
Refer to standard details in Application Manual                                                                                             

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 a minimum 20 mm.

Testing overlap seams
The seams must be mechanically tested with screw-driver (rounded edges) to ensure the integrity/completion of the weld. Any imperfections must be rectified by hot air welding.

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