Dear i-Tools User,
We have updated our i-Tools, which means your current login will expire after August 31, 2026.
The updated i-Tools is accessible via the new web address: https://sadef-ipurlin.com/
You will need to request a new password once, after which you can use the program as usual.

Welcome to i-Tools

A voestalpine Sadef nv portal


Specific design of roof purlins and side rails by the i-Purlin (New Version) online program

i-Purlin (New Version)

i-Purlin (Legacy)

Attention: Version only available until 01.09.2026!

i-Purlin (Legacy)

Advanced software for fast and simple design of solar installation for flat roofs.

i-Solar