Hi, dmksails,
From the picture, it looks like what we call
marine hooding, here. It is a polyester fabric (not
acrylic, like Sunbrella), impregnated with PVC, and designed for harsh UV conditions. It would not surprise me if
Sailrite would have a recommendation for your area, as it tends to be quite moist in the
PNW, and I would think most fabrics would try to grow
mold or algae. Ask other people in Pt. Townsend, where you are. Friends of ours from
Seattle have a plain Sunbrella dodger on their
boat, so maybe that would
work for you.
You could discuss the issue with a couple of different
canvas shops. It might be best to go with an all PVC product, for the ease of wiping it down with vinegar or bleach
water on the inside.
We have
marine hooding, and it is due for another wash with Napisan, an oxygen based disinfectant available here, to get rid of the green stuff. It is a seasonal job, after the longest spell of rains.
Ann