On Tue, 27 Oct 2009 12:50:51 -0500, Red Green wrote:
Looks like about 5 layers of shingles...

Should be able to use 2x4's for new trim where the fascia meets the
shingles. Will make nice for layer 6.

Obviously those are "structural shingles", and the owner's chosen to to
add a bit of redundancy into the system.