Dutch windows
![Okna holenderskie Okna holenderskie](https://sosnowicz.pl/wp-content/uploads/2022/07/okna-holenderskie.webp)
![drewno](https://sosnowicz.pl/wp-content/uploads/2022/06/drewno.webp)
Windows are characterized by a strong frame
Dutch windows are characterized by a strong frame, 114mm in size.
- Windows are made from pine, oak or meranti sawn timber.
- 4/16ar/4TM glass pack, U factor of 1.0 W/m2K
- Glass: Antisol, safe, anti-burglary (P2, P4)
- The way of opening: turn, tile, turn-and-tilt, fixed glazing
- Windows with Roto, Siegenia ferrule systems
- External: Vienna-type, structural, inter-glass: aluminium
- RAL colours, transparent varnishes
![Okna drewniane](https://sosnowicz.pl/wp-content/uploads/2022/06/okna-drewniane.webp)
Wooden windows
![Okna skandynawskie](https://sosnowicz.pl/wp-content/uploads/2022/06/okna-skandynawskie.webp)
Scandinavian windows
![Okna holenderskie](https://sosnowicz.pl/wp-content/uploads/2022/06/okna-holenderskie.webp)
Dutch windows
![Okna drewniano-aluminiowe](https://sosnowicz.pl/wp-content/uploads/2022/06/okna-drew-alu.webp)
Wooden-aluminium windows
![Okna drewniane przeciwpożarowe](https://sosnowicz.pl/wp-content/uploads/2022/06/okna-ppoz.webp)