On Fri, 04 Sep 2009 10:05:28 -0500, Michael Dobony wrote:
http://www.diy-hq.net/outdoor/instal...oof-jacks.html

Interesting - thanks! As the roof is curved, I suspect I'm going to have
to get some made up to match the curvature of the roof.

The description on that site implies that the jacks stay where they are
nailed until the whole project's done ("Once the project has been
completed, all you have to do is remove the board and the jacks along with
it.") - yet in the photo it appears as though there's just a nail-hole in
the jack, rather than a slot; I assume the hole must be larger than the
nail-head so that the jack can be removed and the nail left behind (and
hammered home)?

If working alone you need a minimum of 6 with 2x8 or 2x10's (you will
have to measure or read the directions).

I suppose the 'trick' is to space them apart (vertically) at slightly less
than my own height, so maybe every 5' or so. Right now I don't have an
estimate really for the 'length' top-bottom of each side of the roof,
though.

I would highly recommend a fall
prevention system with fall harness, etc. I helped out on such a roof in
a strong wind and fall chill up in Iowa. MN will be much worse I
suspect.

I think I'd recommend that to myself, too ;-) I don't particularly like
heights, but when the need arises... I wouldn't want to wander around up
there without knowing something will stop me falling if I did slip (I
suspect it gets pretty windy up top, too)

It's not something I want to get stuck into this year - just looking for
ideas and options right now. Maybe next Spring after it's warmed up a
little, and if time and money allow (that amount of shingles plus all the
lumber I'll need won't come cheap, I suspect)

cheers

Jules