Flat Roof Windows

Flat roof window features a sleek modern look, characterized by excellent thermal insulation parameters. The structure of the frame is the same as for flat roof windows with a dome however the main difference lies in the glazing unit which is bonded using modern manufacturing technologies to produce a highly aesthetic and innovative design. These windows are suitable for roof pitches between 2 and 15 degrees.

Color Range

The innovative flat roof window D_F ColourLine allows you to match the colour of the window finish with the existing roof design. A wide range of colours in accordance with the RAL Classic Palette.

Glazing Units

These windows are equipped with an energy-efficient, triple DU6 glazing unit. The external glass 6mm thick is toughened while the internal glass is laminated and anti-burglary P2A class. Should the pane crack, shards of glass do not pose a danger but remain on the laminate film. Heat transmittance co-efficient for the whole window is U=0.70 W/m2K (to EN 14351-1). The window is also available to order with a quadruple U8 glazing unit. Heat transmittance co-efficient for the whole window is U=0.64 W/m2K (to EN 14351-1). Such excellent parameters make the window suitable for use in energy-efficient and passive buildings.

The excellent sound insulation

The DEF flat roof window with a double-chamber DU6 glazing unit has been tested for sound insulation during heavy rain. The result obtained, LIA= 36 [dB]* confirms the high level of resistance against sound penetration, therefore the window is ideal for places where peace and silence are welcome.

The wide range of sizes available has been matched to standard skylights, enabling the quick and easy replacement of an existing skylight for a new window. Standard dimensions are as follow:

  • 60x60cm.
  • 60x90cm.
  • 70x70cm.
  • 80x80cm.
  • 90x90cm.
  • 90x120cm.
  • 100x100cm.
  • 120x120cm.
  • 140x140cm.
  • 100x150cm.
  • 120x220cm.

The structure of the window enables installation of internal as well as external accessories. The external awning blind protects against room overheating while internal accessories protect from intensive sun light and provide a decorative element.

Five Year Warranty

After Sales Service

Commercial Support

Professional Advice


Technical Plastics

Maintaining the same activity that gave rise to the company, At Plastics and Skylights Matilla we continue to store and distribute technical plastics of all kinds: methacrylate, polycarbonate, foamed PVC, composite panel, etc. The purchasing capacity and stock allow us to be competitive in this market, for products with almost infinite applications. In addition, to make our supply we select the best manufacturers in each product category, so that we can guarantee optimal technical characteristics and qualities.

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