Sarnafil G 410-15 SA Feltback

1.5 mm Thick Self-Adhesive PVC Roofing Waterproofing Membrane

Sarnafil® G 410-15 SA Feltback is a multi-layer roofing waterproofing membrane manufactured from high-quality polyvinyl chloride (PVC), reinforced with non-woven glass fiber for dimensional stability. It features a polypropylene fleece backing and a self-adhesive system to make installation faster and more convenient.

The membrane can be joined using hot-air welding, providing strong and continuous seams without requiring open-flame equipment. It is suitable for exposed flat roofs that are regularly subjected to outdoor weather conditions, including sunlight, UV radiation, rain, wind, and temperature fluctuations.

Sarnafil® G 410-15 SA Feltback is manufactured in accordance with EN 13956 and is designed for outdoor applications in various climatic conditions. Its key features include dimensional stability, impact resistance, hail resistance, and immediate resistance to wind uplift after installation through its self-adhesive system.

Applications of Sarnafil G 410-15 SA Feltback

Sarnafil® G 410-15 SA Feltback is suitable for roofing waterproofing applications such as:

• Waterproofing exposed flat roofs

• Roofs requiring installation over smooth substrates

• Roofing applications requiring a self-adhesive membrane system

• Projects requiring reduced use of open-flame equipment during installation

• Buildings requiring a fast-installing and durable roofing waterproofing system

• Roofs continuously exposed to UV radiation and outdoor weather conditions

Installation should be carried out by experienced contractors or specialists in roofing membrane systems to ensure maximum performance and compliance with the installation system requirements.

Key Features of Sarnafil G 410-15 SA Feltback

• Multi-layer PVC waterproofing membrane with a thickness of 1.5 mm

• Self-adhesive backing for fast and convenient installation

• Polypropylene fleece backing

• Reinforced with non-woven glass fiber to improve dimensional stability

• Seams can be joined using hot-air welding

• No open-flame equipment required during installation

• Resistant to UV radiation and continuous outdoor exposure

• Lacquer-coated surface for enhanced surface durability

• Good resistance to impact and hail

• High water vapor permeability

• Resistant to a wide range of common environmental conditions

• Provides immediate resistance to wind uplift after installation through its self-adhesive backing

• A proven, high-performance system with several decades of successful use

Substrate Preparation Steps

1. Remove sharp edges or protrusions.

2. Clean the surface to remove grease and dust.

3. Apply the appropriate primer according to the substrate type.

4. Ensure that the substrate is dry. sarnafil-g-410-15safeltback

Membrane Installation Method

Main steps:

1. Position and align the membrane using the edge without felt backing as a reference.

2. Fold back approximately half of the membrane.

3. Cut the release liner and press the self-adhesive membrane onto the substrate.

4. Repeat the same procedure for the other half.

5. Use a weighted roller of approximately 50 kg to press the membrane firmly into place.

6. Position the next membrane sheet with an overlap of approximately 80 mm.

7. Form butt joints or overlap joints according to the roof configuration.

8. Use a U-Bar or Sarnabar® as a peel stop according to the specified system.

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