Roof Guide
At Sweden's technical universities, there are ongoing projects that address various aspects of construction, building, and management of houses. Surely, there are members of byggahus.se who could benefit from this. Therefore, I thought I would post links to reports that I am aware of, little by little.
The first is a guide about roofs that was written at KTH. It's a few years old, but I believe the content is still relevant.
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-34495
Regards
The Lecturer