The EPAL 20000 range combines all of the advantages of the 18000 range, namely a revolutionary thermal break system, a special polyamide and polyurethane design for even better thermal insulation, without sacrificing design or functionality in any way.

The 20000 range, combined with double or triple thermal insulating glazing, constitutes the optimal solution for areas with extreme temperatures.

  • Thermal break profile. 36mm polyamide thermal break, internally reinforced with cast polyurethane.
  • Dual action frames (Tilt & Turn).
  • Crimp corners.
  • Perimeter locking mechanism at up to 14 points, ensuring the highest level of security.
  • The mechanisms used are ROTO NT by the German company ROTO Frank, a leader in frame mechanisms.
  • Frames can be manufactured using two colors (different color inside and out).
  • EPDM perimetric gaskets for perfect sealing.
  • Accompanied by blinds or shutters, as well as screens.
  • Constructed using specific materials and fittings which fulfill predefined high-quality specifications.
  • Manufactured under controlled production processes that ensure consistently high quality.
  • Very high thermal insulation performance. Due to the special polyamide thermal break, the EPAL 20000 system allows the construction of frames with excellent thermal insulation characteristics (up to Uw = 0.87 W/m2K).
  • High sound insulation levels. In combination with the company’s triple glass panes, the EPAL 20000 range can reach a weighted sound reduction index Rw (C; Ctr) = 38 (-2; -6) dB.
  • High watertightness and airtightness.
  • High resistance to mechanical stress during use and very good functionality.
  • Superior aesthetics with a wide range of colors and high quality electrostatic powder coating.
  • EPAL 20000 Ultra K range frames are installed by expert technical staff on any surface, using special fittings and insulating materials that ensure a perfect fit.
  • Single-sash and two-sash dual-action windows
  • Tilt windows.
  • Single-sash, two-sash, three-sash Volkswagen type windows.
  • Folding doors

The sections of the aluminum profiles (frame and sash) of the EPAL 20000 range have the following characteristics:


Technical characteristics of the frame
Frame width : 84,6 mm
Frame height: 60 mm
Frame weight: 1849gr/m
Technical characteristics of the sash:
Sash width: 84,6 mm
Sash height: 47,5 mm
Sash weight: 1854 gr/m
Maximum sash width: 1600 mm
Maximum sash height: 2400 mm
Maximum sash weight: 100kg


The aluminum profiles of the EPAL 20000 range are made of aluminum suitable for manufacturing frames (DIN 1748) and have the following characteristics.


Alloy: AlMgSi05F22
Hardness: 70 (Brinell)
Breaking strength: N/mm2
Yield stress: N/mm2
Yield stress: N/mm2


The aluminum profiles of the EPAL 20000 range are painted using electrostatic powder coating in the new, state-of-the-art EPAL plant after appropriate surface treatment (preliminary degreasing and chromating), to ensure better paint adhesion as well as high quality and durability.