I’ve been meaning to update the site with better organization. Robert’s question and this discussion about seamed pipe boots was the motivation I needed… There are a lot of videos on Youtube, but they are mostly in foreign languages and even alphabets, making a search for trad roofing techniques very difficult for english-speakers. I’m starting to compile the best videos on a new page here: https://tradroofing.wordpress.com/how-to/
Here’s our discussion from the Trad Roofing forum and the video another member of the group submitted to help with his journey: https://youtu.be/w7lAFq7j3qg
Posted by: Юрий Нуштаев
The first seam we learned together on the bench is one I have named a “reverse” seam. This is because the upstand part is seamed while the piece is still flat. This allows for roof gutter spouts, skylight corners, and low profile filets intersecting outside corners of any type. we used the front of a chimney apron as a model for the lesson.
This is a foundation seam. With this technique you can construct standing hips, bread pans (the alternative to z strips), curbs, or any place where you want or need an alternative to a lay-down seam.
Compagnon Couvreur du Devoir, is a French roofing school. Promoting the best example of study for traditional metal roofing, fabrication, and design.
There is very little information in english on traditional metal roofing. This is what prompted me to begin studying seaming, and publishing the metal roofing bible in 2018 after years of study and work in this field. I found all of the American resources lacking in this department, and most of the leaders in the field of historical roofing in America lacking in their knowledge of time-honored methods for folding and seaming. This short brochure is one of the few examples that show basic seaming techniques.
Although it does not offer instruction on how to create patterns for unique situations, it gives the reader the basics of the “knots” used to accomplish different details in metal roofing without cutting, soldering, or sealants. These techniques allow the roofing elements to be free-folded, and more importantly it allows the roof to be repairable in the future without disrupting the entire assembly. This is not possible with american flat-lock methods where pans are soldered together creating a monolith.