RP Fineline offers extremely slim steel profile systems with thermally insulating solutions for windows, doors, and fixed glazings. These are usually preferred for modern constructions for the greatest possible transparency or restoration projects.

Steel affected modern architecture since the early 19th century and found a wide range of uses from small workshops to monumental buildings, from industrial facilities to skyscrapers. New forming and joining techniques in profile production make heat and sound insulation and ultra-slim sections accessible. At the same time, high mechanical strength properties are maintained. With triple glazing, the “passive house” standards are accessible. The unique profile system ideally uses nostalgic to modern design options.

RP Fineline slender profile systems assure modern-day comfort with high performance such as wind resistance, water tightness, and thermal insulation certificated according to CE product standards.

PVC / Wooden / Aluminium Profile System Steel Profile System


Triple Glass Option


Electrostatic Powder Coating


EPDM / Wet Seal Option


Angled / Straight
Glass Bead Option


Heat Barrier


Visible Height: 45 mm

The superior properties and advantages of steel stand out in the construction sector. Designing large-span buildings with thin profile sections in architecture is only possible with steel. Along with these, steel is a material that contributes to environmental sustainability by being recyclable. Stability and safety are among the main priorities of the R&D team in the design of RP Technik profile systems. The safety of the profile system has been tested and certified.

RP Technik also provides services to meet the special demands of customers with its support-oriented system experts. Standard systems in the RP Technik provide economic advantages in terms of production technique and processing. The wall thicknesses of the profiles vary between 1.5 - 1.8 mm and offer high stability.


Pentek is the sole representative of German steel profile system manufacturer RP Technik in Turkey. We produce fire-rated glass doors in E/EW/EI certified in providing resistance 30/60/90/120 minutes, steel structural (door / fixed division), theft and bullet-resistant systems and glazed steel facades.

Take advantage from Pentek’s experience in the entire project process, from technical specification to planning, from production to assembly.


Special Technical Features

Minimum visible height in windows, door, and partition walls with heat-insulated steel joinery system

  • Basic depth of 60/70 mm profile depth (60 is non-insulated; 70 is with thermal break)
  • Extremely narrow-faced widths: 35/45 mm
  • Glass thickness up to 50 mm
  • Different types of window openings
  • Different types of glazing beads
  • Arch radius up to 300 mm in special geometry
  • Hardware options: Nostalgic to Modern


  • Wind load (EN 12210): ≤C4 / B4
  • Air permeability (EN12207): ≤4
  • Watertightness (EN 12208): ≤9A
  • Impact resistance (EN 13049): 1
  • Thermal transmittance (EN ISO 10077-1): Uf ≥ 1.7 W/m²K
  • Sound insulation (EN ISO 10140): ≤ 44 dB
  • Mechanical performance: meets requirements of Class CW / TC 2 / A


  • Historic Building Renovation, Restoration of Industrial Buildings, Renovation of Modern Architecture Heritage, Contemporary Architectural Designs, Minimalist Interiors, etc…

This post is also available in: Turkish