Sarnafil G410-EL FSA

Sarnafil G410-EL FSA

Sika Sarnafil Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

PVC-P single-ply membrane with a self-adhesive polyester fleece on the underside, for adhered applications.

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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 plasticizer 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, in the opinion of the BBA, a life expectancy of 'in excess of 35 years'.


Sarnafil G410-EL FSA is adhered directly to the previously primed (Primer 600 or Spray Primer 610) substrate, or a suitable thermal insulation board, using the self-adhesive backing. 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

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-EL FSA


Sarnafil Constant Force post

Sarnafil heat weldable lightning conductor clips


Sarnaplast 2235

Primer 110

Primer 600

Spray Primer 610

Double L rainwater outlets

G/S rainwater outlets

Standard product features


1.5 mm + felt.


Lead grey.


2.0 m.

Length of roll:

15 m.


1.5-mm thick: 2.30 kg/m².

Product Options


  • 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.
  • Primer 600: Substrate primer (poured) for use with G410-EL FSA.
  • Spray Primer 610: Substrate primer (spray applied) for use with G410-EL FSA.
  • Double L rainwater outlets: Insulated outlets.
  • G/S rainwater outlets: Injection-moulded PVC outlets and scuppers.

Third party certifications
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