W50TB by Ottostumm continues the steel window heritage, providing the same proportions and classic overlapping aesthetics of the original 20th Century hot rolled profiles, in cold rolled technology.

The innovative high density polyurethane isolator used as a thermal barrier, together with double glazing units of up to 37mm thick, provides a solution for harsher weather environments.

Click here for our 'Ottostumm W50 TB' Insulating Profiles.