• Manufactured with pinewood, vacuum impregnated and coated twice with acrylic varnish,
• Suitable for roofs with pitches between 20° and 90° (complete with flashing).

Top windows are windows which are triangular FAP Z6, or arched FBP Z6. They can be installed on the join above any roof window. Top windows are non-opening. They can be used to create original shapes, additional lighting and an attractive interior design. Use of top windows gives buildings a strikingly distinctive character.