[MassHistPres] Inset windows on curved shingle walls

[Kristi Chase]

The Owner of a circa 1898 Shingle style house is having the lower part
of the gambrel roof reshingled with wood.  This part of the gambrel had
two layers of asphalt shingles and a layer of metal flashing that curved
inward to 3 inset 'dormer' windows.  Her contractor is insisting that it
isn't possible to install wood shingles on the tapered curved gambrel
roof/wall to the inset windows.  He said that the 1/2"  tapered narrow
wood slats that make up the curve were not strong enough to hold wood
shingles and were originally just flashed with metal.  I don't believe I
have ever seen exposed flashing in this kind of situation on a Shingle
style home.  At the moment, bright new copper is exposed and looks
extremely odd.

Does anyone have any expertise to offer me on this?  Unfortunately, I
can't find much on how curved walls were constructed to meet the windows
and the historic illustrations I have of the building are not clear
enough.  I would like to be able to give the contractor some concrete
information on how this should be done.

Thank you all,

Kristi Chase, Preservation Planner
Historic Preservation Commission
Office of Strategic Planning and Community Development
93 Highland Avenue, Somerville, MA  02143
(t) 617-625-6600 x2525, (f) 617-625-0722
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