Insulation:
The EPA produced a wonderfully informative paper titled Quieting in the Home back in 1978 that does a great job of explaining basic concepts for noise control and sound absorption in buildings. The pamphlet isn't too detailed or technical, but covers the basics in an accessible way.
Roofing:
The US Department of Defense provides a detailed general resource for
roofing applications. This 69 page handbook is officially called
Roofing, UFC 3-110-03 (September 2006).
Another resource, more useful in the design of roofs, is the US Dept of Defense
Commentary on Roofing Systems. It has 225 pages
of information , and is officially named UFC 3-330-02A (March 2005).
Specific to
Metal Roofing, this 21 page document produced by the US
US Army Corps of Engineers, titled TI 809-29 (August 1998), provides details
regarding the structural considerations needed in designing a metal
roof.
The US Department of Defense provides a detailed general resource for Joint Sealing for Buildings. This 29 page manual is officially called UFC 3-190-01FA (November 2003).