Usage: Sarnafil® TS 77-15 is ideal for:
- Mechanically fastened roofing systems.
- Applications requiring high dimensional stability and resistance to environmental influences.
- Roofing projects in hot and tropical climates.
- Re-roofing over existing, carefully cleaned, and leveled bituminous roofing.
Application:
- Surface Preparation: Ensure the substrate is clean, dry, and free from contaminants such as dirt, oil, grease, and coatings that may hinder adhesion. For metal substrates, degrease with Solvent T 660 before adhesive application.
- Installation Method: Sarnafil® TS 77-15 is installed by loose laying without stretching or installing under tension. Overlap seams by 80 mm, weld immediately, and fix to the substructure using Sarnabar® fasteners. At upstands and penetrations, secure the membrane with Sarnabar®. The 4 mm diameter S-Welding Cord protects the roof covering against tearing and peeling off by wind uplift.
- Welding: Overlap seams must be welded using electric hot air welding equipment. Welding parameters, including temperature, machine speed, airflow, pressure, and machine settings, must be evaluated, adapted, and checked on-site according to the type of equipment and climatic conditions prior to welding. The effective width of welded overlaps by hot air must be a minimum of 20 mm.
Coverage: Each roll of Sarnafil® TS 77-15 covers:
- Length: 20.00 m
- Width: 2.00 m
- Roll weight: 66.00 kg
- Thickness: 1.5 mm
- Mass per unit area: 1.65 kg/m²
Advantages:
- Proven performance over decades.
- Various colors available.
- Resistant to permanent UV exposure.
- High dimensional stability due to glass fleece inlay.
- Resistant to permanent wind exposure.
- Resistant to all common environmental influences.
- Resistant to micro-organisms.
- Resistant to root penetration.
- Compatible with old bitumen.
- Hot air weldable without the use of open flames.
- Recyclable.
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