Erpen Stilline™ is a PVC window model that prioritizes aesthetics in architecture with its elegant design, while also delivering performance with its strong insulation capabilities. Developed to meet both aesthetic and functional expectations, this series combines a stylish look and economy in modern architecture.

| Profile Width (mm) | Air Permeability Class | Profile Class TS -5358 / EN 12608 | Water Tightness Class | |
|---|---|---|---|---|
| 82 | 4 | B | 9A | |
| Wind Load Resistance Class | Sound Insulation (dB) | Profile Thermal Transmission (W/m²K) | Window U-value (W/m²K) | Glass Thickness (mm) |
| C3 | 40 | 1.7 | 1.6 | 20, 24 |
A New Era of High-Insulation Sliding Systems
Today, the importance of not only energy sources but also the efficient use and conservation of energy is increasing. In building complexes, approximately 82% of energy is consumed for heating purposes, which corresponds to 26% of the total energy used in our country.
Heat loss in buildings occurs as follows: 40% through exterior walls, 30% through windows, 17% through exterior doors or balcony doors, 7% through the roof, and 6% through underfloor areas.
This highlights residential buildings and insulation solutions—particularly PVC window systems—as one of the most critical areas for energy savings. Given that energy is the most limited and costly resource, thermal insulation in window systems becomes increasingly crucial for preserving energy.
Profile Width: 89.5 mm
Frame Type: Single Frame with Casing (optional double frame available)
Glass & Profile Combinations: (e.g., listed in catalogs as “Stilline. 89.5. 30.5 Single Frame with Casing”) ankarawin.com
Thermal & Insulation Performance: Stilline profiles provide higher thermal insulation thanks to their wide profile dimension
Aesthetic Details: Slim profile for a modern façade-compatible appearance
Installation Flexibility: Single frame, double frame, and casing solutions
Stilline, with its wide profile structure, reduces thermal bridges and minimizes heat loss. This results in lower energy consumption and a higher energy class. Thanks to its high insulation capability:
It retains indoor heat during winter,
Prevents external heat from entering during summer,
Helps save on energy bills,
Creates more comfortable and peaceful indoor spaces.
The Stilline series is manufactured according to Erpen’s principles of quality and safety. Production processes comply with the following standards and certifications:
TS 5358 / EN 12608 – PVC profile quality standard
CE Certificate – European conformity and product safety
ISO 9001:2015 – Quality management system
ISO 14001 – Environmental management system
TSE Certificate – Turkish Standards Institution approval
These certifications demonstrate that the Stilline window system is committed to quality, durability, and reliability.
Stilline is especially preferred for projects where both aesthetics and performance are important:
Used in residences, villas, and housing projects for aesthetic façade integration
Enhances the modern façade of office and commercial buildings
Ideal choice for buildings requiring high energy efficiency
Offers flexibility with easy installation and various frame types
In summary, its advantages include high insulation capacity, modern appearance, certified quality, long lifespan, and environmentally conscious production.
For system technical details, color variations, and ordering information regarding the Extraline profile, please contact our sales representatives. You can download the detailed product catalog, installation manual, and support documents as a PDF.


