10/07/2026
Protecting buildings against water is critical for ensuring both long service life and indoor comfort. Roofs and terraces are directly exposed to environmental factors such as rain, snow, and intense sunlight. Therefore, high-performance waterproofing products should be preferred for these areas.
3 mm –10°C APP modified bituminous membrane provides a reliable waterproofing solution for moderate and moderately cold climates by combining mechanical strength, high temperature and UV resistance provided by APP modification, and flexibility performance at –10°C. Thanks to these features, it is among the widely preferred waterproofing products in the construction industry.
This membrane is a bitumen-based waterproofing material modified with Atactic Polypropylene (APP). APP additives help the product maintain its shape stability at high temperatures, improve resistance against UV rays, and reduce the negative effects of sunlight.
Thanks to its 3 mm thickness, it provides a stronger structure against punctures, impacts, and tearing. Its ability to remain flexible at –10°C allows safe use in many regions without the risk of cracking.
Thickness: 3 mm
Cold Flexibility: –10°C
Modification Type: APP (Atactic Polypropylene)
Reinforcement Layer: Polyester felt (high tensile strength) or fiberglass mat (economical option)
Surface Options: Polyethylene film, mineral coating, or sand-coated surface
Application Method: Torch-applied installation
Terrace Roofs: Used under protective concrete layers or as exposed applications with mineral-coated surfaces.
Pitched Roofs: Provides reduced deformation risk in hot weather conditions thanks to its UV resistance.
Intermediate Floor Waterproofing: Prevents water transmission between floors.
Prefabricated Structures: Provides suitable solutions with its lightweight and durable structure.
Garden Terraces: Provides reliable waterproofing beneath walkable surfaces.
High Mechanical Resistance: Its 3 mm thickness provides durability against impacts and tearing.
Climate Compatible Structure: With –10°C cold flexibility performance, it can be safely used in the Marmara, Aegean, Mediterranean, and most parts of Central Anatolia regions.
Long-Term Durability: APP modification provides resistance against temperature changes and UV radiation.
Practical Installation: Enables fast and effective installation with torch application.
High Price-Performance Ratio: Offers an economical and high-quality waterproofing solution.
Surface Preparation: The application surface must be clean, dry, and smooth before installation.
Primer Application: Applying a bituminous primer improves adhesion performance.
Overlap Details: Joints should have a minimum 10 cm overlap to ensure complete waterproofing.
Protection Selection: Mineral-coated surfaces should be preferred for exposed applications, while sand-coated surfaces are recommended under protective concrete layers.
1. In which regions should it be preferred?
It is suitable for use in the Marmara, Aegean, Mediterranean, and partially Central Anatolia regions.
2. Can it be used for foundation waterproofing?
For foundation applications, thicker SBS modified membranes with better low-temperature flexibility are generally recommended.
3. What are the benefits of APP modification?
It helps the membrane maintain its form at high temperatures and provides long-term resistance against UV radiation.
4. What is the difference between 3 mm –10°C and 3 mm –5°C products?
The –10°C flexibility value provides better performance at lower temperatures, offering advantages for use in colder climate conditions.
3 mm –10°C APP modified bituminous membrane is an effective waterproofing solution that combines durability, flexibility, and resistance against environmental conditions. With its strong mechanical performance, UV resistance, and reliable cold-weather flexibility, it provides long-lasting protection for modern roofing and waterproofing applications.
