Solutions for greater energy efficiency.
Good U values are our bread and butter. PORTAL achieves
the necessary compression by means of different special
solutions. For example, due to continuous sealing levels
with the innovative ECO SLIDE sliding hardware.
Or due to the 10-chamber profile of our ECO PASS
threshold, which enables thermal insulation way beyond
the requirements of the Energy Saving Regulations. Our
lift-slide and parallel sliding tilting hardware systems,
which can also be used for high profile strengths of highly
insulating elements, are unrestrictedly compatible with
ECO PASS threshold with 10-chamber profile for optimal