G410-ELF Adhered Roof System - Sarnavap 500E

G410-ELF Adhered Roof System - Sarnavap 500E

Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

Sika Sarnafil

Adhered roof covering system.

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+44 (0)1707 394444 www.sarnafil.co.uk

PVC-P single-ply membrane for adhered warm roof systems.

Sarnafil G membranes are manufactured using a state of the art extrusion coating process that eliminates shrinkage and plastic memory and produces a dynamically stable membrane. In the coating process, a glass fibre carrier is coated on both sides with liquid Plastisol, prior to the application of a lacquer coating on the upper surface and laser marking of the membrane surface for identification. The unique lacquer coating eliminates the need for biocides, provides the membrane with an easy to clean surface and prolongs the life of the membrane by reducing plasticiser loss.


Certified by BBA, in their opinion, to have a "life expectancy in excess of 40 years" for exposed applications, with periodic maintenance as stated below.

"A planned maintenance cycle, including inspections by the Certificate holder at minimum intervals of five years, should be introduced if an extended service life is required. The Certificate holder can advise on methods of extending the service life. This could include the use of thicker membranes, specific maintenance requirements or localised replacement and repair."

Should the maintenance cycle not be followed Sarnafil G/S membranes have been given, by the BBA in their opinion, a life expectancy of "in excess of 35 years".


Sarnafil G410-ELF is adhered directly to the substrate or a suitable thermal insulation board with Sarnacol 2170 or Sarnacol 2142S. Laps are then hot air welded to form seams which are stronger than the membrane itself.

Installation is carried out by Sarnafil trained contractors.

General information


All Sarnafil systems are subject to a project specific specification (including design against wind uplift) to be completed by Sika Sarnafil. Please contact your local Sarnafil Technical Adviser


Sarnafil single point, insurance backed, guarantees provide cover for all Sarnafil products supplied by Sika and branded Sarnafil products supplied by Sarnafil Partner suppliers

Uniclass 2015

Pr_25_57_51_66 Polymeric membranesPrimary


J42/10 Warm deck roof covering

J42/110 Warm deck roof covering

J42/130 Cold deck roof covering

J42/400 Waterproof membrane

Specification data - Polymeric membranes

Product Reference

Sarnafil G410-ELF


1.2 mm + felt

As standard.

1.5 mm + felt

1.8 mm + felt


Copper Patina Green

Lead grey

Light grey

White RAL 9016 SR (solar reflective)


Sarnafil Constant Force post

Sarnafil heat weldable lightning conductor clips


Sarnaplast 2235

Primer 110

Double L rainwater outlets

G/S rainwater outlets

Standard product features


2.0 m.

Length of roll:

20 m for 1.2 mm membrane: 15 m for 1.5 and 1.8 mm thick membrane.


  • 1.2 mm-thick: 1.80 kg/m².
  • 1.5 mm-thick: 2.10 kg/m².
  • 1.8 mm-thick: 2.60 kg/m².

Product Options


1.2 mm standard thickness.


Available in standard colours. Other colours may be available, subject to a lead time and minimum order quantities.


  • Sarnafil Constant Force post: Cable-based fall arrest and restraint system.
  • Sarnafil Double L: High drainage capacity insulated rainwater outlet.
  • Sarnafil heat weldable lightning conductor clips.
  • Sarnametal: Galvanized metal sheet with Sarnafil G410-12EL factory laminated to it, for use in prefabricated flashings and drip details.
  • Sarnaplast 2235: Elastic one-part silicone sealant for sealing edges and perimeter upstandflashing terminations.
  • Primer 110: Surface primer creating a key for Sarnaplast 2235.
  • Double L rainwater outlets: Insulated outlets.
  • G/S rainwater outlets: Injection moulded PVC outlets and scuppers.

Digital objects
PlatformCompatibleVersionCertified to
IFC2X3 4 1.3
- 1.0
- 2
- 1.0
Revit 2016 5 2.0
Download now from NBS National BIM Library
Third party certifications
  • Standard/ Certificate: 08/4531 : Sarnafil adhered roof wateproofing membranes
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