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Sarnafil® G 410-12 L Felt

POLYMERIC MEMBRANE FOR ADHERED ROOF WATERPROOFING

Sarnafil® G 410-12 L Felt (thickness 1.2 mm) is a multi-layer, synthetic roof waterproofing sheet based on premium-quality polyvinyl chloride (PVC) with inlay of glass non-woven and with a polyester fleece backing. Sarnafil® G 410-12 L Felt contains ultraviolet light stabilizers according to EN 13956 / GB 12952. Sarnafil® G 410-12 L Felt is a hot air weldable roof membrane, formulated for direct exposure and designed to use in all global climatic conditions. Sarnafil® G 410-12 L Felt is produced with an integral glass non-woven carrier for dimensional stability. 

  • Proven performance over decades
  • Lacquer coated surface
  • Fast installation with Sarnacol® adhesives
  • Resistant to permanent 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
  • Hot air weldable
  • No open flame equipment required
  • Recyclable (Delete if recycling facilities or recycling offerings for roofing membranes are not available in local country)
 
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Product Data Sheet Show all documents

Usage

Sarnafil® G 410-12 L Felt may only be used by experienced professionals. Waterproofing membrane for:
  • Fully bonded, exposed roofs

Advantages

  • Proven performance over decades
  • Lacquer coated surface
  • Fast installation with Sarnacol® adhesives
  • Resistant to permanent 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
  • Hot air weldable
  • No open flame equipment required
  • 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:

20,00 m

Roll width:

2,00 m

Roll weight:72,00 kg

Colour

Surface:matt
Colours:

Top Surface:

white

Bottom surface:dark grey

Top surface colour available in other colours 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
  • BRE Environmental Product Declaration (EPD)

APPROVALS / CERTIFICATES

  • Sarnafil® G 410-12 L Felt is designed and manufactured to meet most international recognized standards.
  • Polymeric PVC sheets for waterproofing according to GB12952, Type GL.
  • Polymeric sheets for roof waterproofing according to EN 13956, certified by notified body and provided with the CE-mark.
  • Polymeric sheets for roof waterproofing according to JIS A6008, certified by notified body CECN09001 and provided with the JIS-mark.
  • Official quality approvals and agreement certificates and approvals.
  • Monitoring and assessment by approved laboratories
 
Product Information

Composition

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

GB 12952 - Type GL

Visible Defects

Pass

(EN 1850-2)

Length

20,00 m (-0 / +5 %)

(EN 1848-2)

Width

2,00 m (-0,5 / +1 %)

(EN 1848-2)

Effective Thickness

1,2 mm (-5 / +10 %)

(EN 1849-2)

Overall Thickness

1,2 mm (-5 / +10 %)

(GB 12952)

Straightness

≤ 30 mm

(EN 1848-2)

Flatness

≤ 10 mm

(EN 1848-2)

Mass per unit area

1,8 kg/m² (-5 / +10 %)

(EN 1849-2)
System information

System Structure

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

  • Sarnafil® G 410-12 L sheet for detailing
  • Sarnafil® Metal Sheet PVC
  • Sarnabar® or S-U B ar
  • Sarna Seam Cleaner
  • Sarnacol® 808 / 2170 / 2142 / 2152 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.
Technical Information

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)

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)

≤  -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 bendno 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

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
  • Semi-automatic: Leister Triac Drive
  • Automatic: Sarnamatic 681/ Leister Varimat / Leister UniRoof

SUBSTRATE QUALITY

The substrate surface must be uniform, smooth and free of any sharp protrusions or burrs, etc. Sarnafil® G 410-12 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 according to the valid installation instructions for Sarnafil® G 410-12 L Felt types system fully bonded for exposed roofs.

Fully adhere roof surfaces and junction areas:

The roof waterproofing membrane is bonded to substrate by selected Sarnacol® adhesive depending on the type and slope of substrate. Seam overlaps are welded by hot air.

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.

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.

Please contact your local Sika sales organization for more information.

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