well, I have to consider getting the sand bags up to the roof.
100LBS is a bit much for one average guy to haul up a ladder, but 75 is just
manageable.
If they make roof top supports that can utilize sand bags, or concrete
blocks, then that is what i need.
any ideas as to who manufacturs them?
73
Colin, V A6BKX
----- Original Message ----- 
From: "John Miller" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, March 29, 2007 11:07 AM
Subject: Re: roof mounting tripod


> They actually make mounts for just that kind of mounting and stuff, I
> wouldn't put a big beam on it, but for a smallish beam, with a reasonably
> low wind load, you should be good, I'd put 75 LB sand bags though at the
> least, I like to go overkill on my projects, but with something like that,
> it's better to go over than under. If you have a cushcraft beam in mind,
> check out there site, I believe they have wind load ratings and stuff
right
> on the site or in the downloadable documentation.
> ----- Original Message ----- 
> From: "Colin McDonald" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, March 29, 2007 12:33 PM
> Subject: roof mounting tripod
>
>
> >I mentioned in my last post about mounting a tripod or support structure
on
> > a pitched roof for a small beam, likely 3 element 10, 15 and 20M
> > cushcraft.
> > I am not able to bolt the tripod or support structure to the roof, but
may
> > be able to use heavy sand bags or other large heavy leg anchors.
> > Has anyone used something like this, and if so, what was the
> > configuration?
> > I think something like a four legged stand that goes across the peak of
> > the
> > roof with 50 or 75 pound sand bags on each leg should be enough, but I'm
> > not
> > sure.
> > Also, how low can I put the beam above the roof to avoid swr changes as
I
> > turn it?  The idea is to make sure the thing won't blow away in the
first
> > good wind, but I don't need to over do it either.
> > How heavy are the cushcraft tribanders and what is the wind load and so
> > on.
> > 73
> > Colin, V A6BKX
>
>
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