I agree that specifications are not just product specs. However, I believe that "caderno" has a function in the context; therefore it cannot be omitted or replaced with something else for the sake of accuracy.

In my search for the proper translation, I came across "drawing and specification logs", which occurs quite frequently. Depending on the builder, sometimes these two logs are combined into one. For larger projects, however, they are more likely to be broken down into two. That's the case of this building replacement project for Marjory Stoneman Douglas High School. It has a drawing log and a specification log along with other documents.

After analyzing the spec log, I came to the following conclusion:

- It has a section called FINISHES (next to "Division 09"), but it covers other phases too.
- It does contain a list of the materials to be used.
- It does mention "wall covering", item 09720 (09 72 00).
- It does mention "storefronts", same as "façade", item 08400 (08 41 00).

The above information coincides with the original context, which in my view adds credibility to this translation.

Please note: The specification log includes information for ** all phases ** of the project, not just the finishing.

Based on these research findings, references, and Google Search results, I'm giving it the highest confidence level. :-)

References:
http://bcpsagenda.browardschools.com/agenda/01669/Item JJ-12...
http://www.carter-carter-manuals.net/polproc/1/en/topic/draw...

Google Search results:

drawing and specification log: (3090)
https://www.google.com/search?q="drawing and specification l...

drawing and specification logs: (441)
https://www.google.com/search?q="drawing and specification l...

specification log: (26,200)
https://www.google.com/search?q="specification log"&oq="spec...

I hope this answer works for you. Good luck.