DDH

The DDH app - the expertise for roofers in one place.

This is your application for specialized publications with added value. Get easily accustomed to the electronic table of contents and the fast and intelligent search in all publications. The work desk function helps you search within an entire publication. Add bookmarks and your own annotations in any desired passage, in the form of texts, images, photos or audio comments. This app offers thus a valuable library of online publications with high performance additional features – all this in an attractive design.