BBA Agrément Certificate
PVC-P single-ply membrane with polyester reinforcement, for mechanical fastening.
PVC-P single-ply membrane for mechanical fastening.
Sarnafil S 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 polyester scrim 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 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.
The process enables between 2 and 5% of recycled material to be used in the production of new membranes.
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 S327-EL is mechanically attached to the substrate using either the Sarnafast or Sarnabar system and Sarnafil SFT or SBT tube fasteners. Laps are then hot air-welded to form seams which are stronger than the membrane itself.
Installation is carried out by Sarnafil-trained contractors.
J42/10 Warm deck roof covering
J42/110 Warm deck roof covering
J42/130 Cold deck roof covering
J42/400 Waterproof membrane
Azure blue (nearest RAL 5009)
Copper brown (nearest RAL 8004)
Copper patina (Sika colour 6525)
Lead grey (Sika colour 9500)
Light grey (nearest RAL 7047)
Traffic white (nearest RAL 9016)
Traffic white RAL 9016 SR (solar reflective)
Window grey (nearest RAL 7040)
Double L rainwater outlets
G/S rainwater outlets
Sarnafil Constant Force post
Sarnafil heat weldable lightning conductor clips
|Standard product features|
Length of roll:
20 m: 15 m for 1.8 and 2.0 mm-thick membrane.
1.2 mm standard thickness. Ballasted applications require a membrane at least 1.5 mm thick.
Available in standard colours. Other colours may be available, subject to a lead time and minimum order quantities.
G410-EL Adhered Cold Roof System
G410-EL Adhered Roof System - Sarnavap 1000E
G410-EL Adhered Roof System - Sarnavap 5000E SA
G410-EL Adhered Roof System - Sarnavap 500E
G410-EL Adhered Roof System – Sarnavap 500E
G410-EL Ballasted Roof System - Sarnavap 1000E & S-Felt T 300
G410-EL Ballasted Roof System - Sarnavap 1000E & Sarnafil G445-13
G410-EL Ballasted Roof System - Sarnavap 5000E SA & S-Felt T 300