Courtney Thomas wrote:
Don White wrote:


Courtney Thomas wrote:


That's what I was looking for....i.e. the reason that some/most
boatowners decide to cover, i.e. the destructive potential of the
thaw/freeze cycle of the encumbent precipitation.

What'd the old-timers do ?

Cordially,

Courtney

Here on the Atlantic Coast of Canada, I'd recommend a cover. We usually
get a lot of freeze/thaw cycles and the prevaling winds make us the
tailpipe of North America. That is...most of our pollution originates
in central Canada or the US.


Don,

Is poly wrap OK to get through a first season in your area, later building a
cover since no time to do it now for me, or is the venting such a problem
that one would be better off leaving uncovered ?

How have you observed venting to be adequately done or is it considered
inconsequential in your area ?

Cordially,
Courtney

Venting very important in this damp climate. With my mini-cruiser
sailboat, the canvas cover stretched over the mast (acting like ridge
pole,) and open at the bow pulpit and at stern rail for flow through
ventilation, was good enough. Poly (5 mil builders vapor barrier) does
tend to form condensation, so the venting might be even more important.
This area can be windy through fall/winter/spring so the poly will have
to be reinforced somehow.
I went over to a commercial fishers supply company last year and bought
fishnet (size that's not used much anymore) dirt cheap. I had planned to
throw this over the heavy canvas, but it wasn't really needed. If I was
using poly, or the blue/green/silver tarps available at most hardware
stores, I would throw the net over all and secure.
You've got me thinking...I wonder what they do each spring with all the
little white vents while removing shrinkwrap.