Steel security door KSI Thermo65

Functional door with excellent thermal insulation: the steel security door KSI Thermo65 offers insulates effectively and includes RC2 class break-in-resistant security features. It's also available with class 3 acoustic insulation.

Function doors Already available Residential construction

Our KSI Thermo steel security door is now also available with a 65 mm thick door leaf and thermal break. Compared to conventional security doors, the innovative door leaf provides significantly improved thermal insulation and minimises the risk of condensation in heated rooms. With tested RC2 security class equipment as standard, the KSI Thermo65 guarantees effective burglar protection. Acoustic insulation of up to 42 dB in acoustic rating category 3 is also available as an option. The steel security door has an impressive visual profile that comes in a wide range of designs, such as: Traffic white (RAL 9016), 10 modern MatchColor shades, Color and Matt deluxe colours as well as Decograin decors. The KSI Thermo65 is ideal as an external door for basements, heated buildings or garages with access to the house, combining security, thermal insulation and an attractive design.

New steel security door KSI Thermo available with 65 mm thick door leaf & thermal break to provide even better thermal insulation
High burglar protection: as standard in tested RC2 security class
Optionally with acoustic insulation up to 42 dB (acoustic rating category 3)
Wide range of designs: Traffic white (RAL 9016), 10 MatchColor shades, Color, Matt deluxe and Decograin decors
Ideal as an external door for basements, heated buildings or garages with access to the house
CO₂-neutral as standard
Already available

As standard

Very good thermal insulation

External door for heated buildings

Acoustic-rated as an option

Good reasons for a Hörmann function door

High-quality steel doors

All new products and features