Sarnafil® S 327-18 EL
Sarnafil® S 327-18 EL (thickness 1.8 mm) is a polyester reinforced, multi-layer, synthetic roof waterproofing sheet based on premium-quality polyvinyl chloride (PVC) containing ultraviolet light stabilizers and flame retardant according to EN 13956.
Sarnafil® S 327-18 EL is a hot air weldable roof membrane formulated for direct exposure and designed to use in all global climatic conditions.
Usage
Waterproofing membrane for:- Mechanically fastened roofing systems.
- Enhancement of solar reflection of existing PVC roofs (relevant only for colour RAL 9016 SR).
Advantages
▪ Proven performance over decades. ▪ Lacquer coated surface. ▪ High reflectance properties for excellent cool roofing characteristics (relevant only for colour RAL 9016 SR). ▪ Resistant to permanent UV irradiation. ▪ Resistant to permanent wind exposure. ▪ Resistant against impact load and hail. ▪ Resistant to all common environmental influences. ▪ Hot air welding without use of open flames. ▪ High water vapour permeability. ▪ Recyclable.Packaging
Sarnafil® S 327-18 EL standard rolls are wrapped individually in a blue PE-foil.
| Packing unit: | see price list |
| Roll length: | 15.00 m |
| Roll width: | 2.00 m |
| Roll weight: | 66.00 kg |
Colour
| Surface: | matt |
| Colours: | |
| Top surface: | light grey (nearest RAL 7047) traffic white (nearest RAL 9016) |
| Bottom surface: | dark grey |
Product Details
ENVIRONMENTAL INFORMATION
- Conformity with LEED v4 SSc 5 (Option 1): Heat Island Reduction - Roof (only traffic white).
- Conformity with LEED v4 MRc 2 (Option 1): 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.
- Conformity with LEED v2009 SSc 7.2 (Option 1): Heat Island Effect - Roof (only traffic white).
- Conformity with LEED v2009 MRc 4 (Option 2): Recycled Content.
- IBU Environmental Product Declaration (EPD) available.
APPROVALS / STANDARDS
- Sarnafil® S 327-18 EL is designed and manufactured to meet most international recognised standards.
- Polymeric sheets for roof waterproofing according to EN 13956, certified by notified body 1213-CPD-4920 and provided with the CE-mark.
- Reaction to fire according to EN 13501-1.
- External fire performance tested according to ENV 1187 and classified according to EN 13501-5: BROOF (t4).
- Factory Mutual (FM) Approval Class: 4470.
- Quality Management system in accordance with EN ISO 9001/14001.
Product Declaration
EN 13956
Shelf Life
5 years from date of production in unopened, undamaged and original packaging.
Storage Conditions
Rolls must be stored between +5 °C and +30 °C in a horizontal position on pallet, protected from direct sunlight, rain and snow. Do not stack pallets of rolls or any other material during transport or storage.
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
| 1.8 mm (- 5 % / + 10 %) | (EN 1849-2) |
Straightness
| ≤ 30 mm | (EN 1848-2) |
Flatness
| ≤ 10 mm | (EN 1848-2) |
Mass per unit area
| 2.2 kg/m² (- 5 % / + 10 %) | (EN 1849-2) |
System Structure
Wide range of accessories is available e.g. prefabricated parts, roof drains, scuppers, walkway pads and decor profiles.
The following accessories shall be used:
- Sarnafil® Metal Sheet PVC
- Sarnabar® / Sarnafast®
- S-Welding Cord PVC
- Sarna Seam Cleaner
- Sarna Cleaner
Compatibility
Not compatible with direct contact to other plastics, e.g. EPS, XPS or PF. Not resistant to tar, bitumen, oil and solvent containing materials.
Resistance to Impact
| hard substrate | ≥ 700 mm |
| soft substrate | ≥ 1000 mm |
Hail Resistance
| rigid substrate | ≥ 32 m/s |
| flexible substrate | ≥ 37 m/s |
Resistance to Static Load
| soft substrate | ≥ 20 kg |
| rigid substrate | ≥ 20 kg |
Tensile Strength
| longitudinal (md)1) | ≥ 1100 N/50 mm |
| transversal (cmd)2) | ≥ 1100 N/50 mm |
1) md = machine direction
2) cmd = cross machine direction
Elongation
| longitudinal (md)1) | ≥ 12 % |
| transversal (cmd)2) | ≥ 12 % |
1) md = machine direction
2) cmd = cross machine direction
Tear Strength
| longitudinal (md)1) | ≥ 200 N |
| transversal (cmd)2) | ≥ 200 N |
1) md = machine direction
2) cmd = cross machine direction
Joint Peel Resistance
| no failure of the joint | (EN 12316-2) |
Joint Shear Resistance
| ≥ 800 N/50 mm | (EN 12317-2) |
Dimensional Stability
| longitudinal (md)1) | ≤ |0.3| % |
| transversal (cmd)2) | ≤ |0.2| % |
1) md = machine direction
2) cmd = cross machine direction
Solar Reflectance Index
| Colour | Initial | 3 years aged | Test Institute |
| RAL 9016 SR | 114 | - | Sika |
CRRC tested products, listed in Cool Roof Rating Council (CRRC) product data base.
Foldability at Low Temperature
| ≤ -25 °C | (EN 495-5) |
Water Tightness
| Pass | (EN 1928) |
Effect of Liquid Chemicals, Including Water
| On request | (EN 1847) |
UV Exposure
| Pass (> 5000 h / grade 0) | (EN 1297) |
External Fire Performance
| BROOF(t4) 0° - 70° (subject to construction) | (EN 13501-5) |
Reaction to Fire
| Class E | (EN ISO 11925-2, classification to EN 13501-1) |
Application
Ambient Air Temperature
-20 °C min. / +60 °C max.
Substrate Temperature
-30 °C min. / +60 °C max.
SUBSTRATE QUALITY
The substrate surface must be uniform, smooth and free of any sharp protrusions or burrs, etc.
Sarnafil® S 327-18 EL must be separated from any incompatible substrates by an effective separation layer to prevent accelerated ageing. Prevent from direct contact with bitumen, tar, fat, oil, solvent containing material and direct contact to other plastic materials, e.g. expanded polystyrene (EPS), extruded polystyrene (XPS), or phenolic foam (PF) as this could adversely affect the product properties.
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 works to be carried out only by Sika Sarnafil Registered Roofing Contractors.
Installation of some ancillary products, e.g. contact adhesives / cleaners is limited to temperatures above +5 °C. Please observe information given by Product Data Sheets. Special measures may be compulsory for installation below +5°C ambient temperature due to safety requirements in accordance with national regulations.