Sikaplan® G-12 | Mechanically Fixed PVC Roof Waterproofing Membrane

Product Description

Sikaplan® G-12 is a 1.2 mm thick PVC-based roof waterproofing membrane reinforced with polyester and manufactured in compliance with the EN 13956 standard. It has been specially developed for mechanically fixed roofing systems.

Developed by Sika, a global leader in construction chemicals, Sikaplan® G-12 provides long-term protection against UV radiation, wind loads, and challenging environmental conditions.

Thanks to its high water vapor permeability, it supports moisture balance within roofing systems and contributes to extending the service life of the building structure.

Key Features of Sikaplan® G-12

✔ UV Resistance
Provides long-lasting protection against continuous exposure to sunlight.

✔ Reliable Performance Against Wind Loads
Offers strong fixing performance in mechanically fixed roof applications.

✔ High Water Vapor Permeability
Helps optimize moisture management within the roofing system and reduces condensation risks.

✔ Resistance to Environmental Conditions
Provides durability against rain, snow, frost, and temperature fluctuations.

✔ Reliable Welding Performance
Creates strong and homogeneous joints through hot air welding technology.

✔ Recyclable Structure
Supports environmentally responsible roofing solutions.

Application Areas

Sikaplan® G-12 is mainly preferred for mechanically fixed roofing systems, including:

• Industrial roofs such as factories, warehouses, and logistics centers
• Commercial buildings including shopping malls and office facilities
• Projects located in areas with high wind exposure
• Unprotected flat terrace roofs
• Large-scale roofing projects requiring fast and economical waterproofing solutions

Technical Specifications

Material: PVC-based roof waterproofing membrane
Reinforcement: Polyester reinforced
Thickness: 1.2 mm

Roll Length: 20 m

Roll Width Options:

• 0.77 m
• 1.00 m
• 1.54 m
• 2.00 m

Roll Weight: 23.10 kg – 60.00 kg (depending on roll width)

Surface Type: Textured

Color Options

• Light Grey (RAL 7047)
• Dark Grey (RAL 7015)
• Red (RAL 8004)
• Green (RAL 6021)
• Traffic White (RAL 9016)

Bottom Surface Color: Dark grey

Temperature Resistance

External Temperature Range: -15 °C to +60 °C
Surface Temperature Range: -25 °C to +60 °C

Certifications and Standards

• EN 13956 – Standard for polymeric roof waterproofing membranes
• EN 13501-1 – Fire behavior classification Class E
• EN 13501-5 – External fire performance (BROOF(t1), BROOF(t3))
• FM 4470 – Factory Mutual approval
• EN ISO 9001 / 14001

Why Choose Sikaplan® G-12?

Three factors are critical in mechanically fixed roof systems:

• Wind resistance
• UV durability
• Long service life

Sikaplan® G-12 provides an effective roofing solution with its lightweight structure, helping minimize additional loads on the supporting system. Its high water vapor permeability supports moisture balance between roof layers, while hot air welding technology ensures secure and durable connections.

When properly designed and installed with the correct fixing spacing, Sikaplan® G-12 delivers a reliable and long-lasting waterproofing solution for modern roofing projects.

Frequently Asked Questions (FAQ)

Which roof types is Sikaplan® G-12 suitable for?

Sikaplan® G-12 is designed for mechanically fixed roofing systems, especially unprotected flat terrace roofs.

Can Sikaplan® G-12 withstand high wind loads?

Yes. When installed with the correct fixing details, it provides reliable performance against high wind loads.

Why is water vapor permeability important?

High water vapor permeability helps reduce condensation risks and contributes to the long-term durability of the roofing system.

Are different color options available?

Yes. Sikaplan® G-12 is available in light grey, dark grey, red, green, and traffic white color options.