Yep, sorry for not being diligent about mentioning (or photographing) the roof mat. None of the rooftops I've mounted on are metal, but even still a roof mat is a good idea to keep the wood from slowly rotting away the tar-paper or whatever the roof is surfaced with.
Thanks for the tip about using a stall mat! On Tue, Jul 30, 2013 at 3:16 PM, Ryan Spott <[email protected]> wrote: > B VERY careful when using treated wood on a metal roof. It will attack > and eat right through it. > I caught my first do-it-yourself mount before it got through the roof of a > multi-million dollar house. > > At a minimum use a roof pad. If you can't find one for cheap then ask > around your friends with horses. Use a stall mat cut to the right size. > > ryan > > > On 7/30/13 11:14 AM, Ben West wrote: > > For ultra low-cost non-penetrating roof mounts, I've been playing around > with J-Bars salvaged from discarded Dish TV equipment, mounted to a base > made from scrap treated lumber and weighted down with cinderblocks. Then, > I mate a vertical length of EMT conduit, 1/2" or better yet 3/4", using a > couple conduit hangers. > > http://goo.gl/ojvZu0 > http://goo.gl/6Wu0My > > Maybe this can give you a general idea, although this would definitely > have a conspicuous DIY look. (I just try to make these things in batch, to > conserve on labor.) > > I should note the latter photo, which might be of the most interest to > you, is now out of date. The wood beams making up the base were rearranged > into a "V" shape for more width, with a metal brace spanning the mouth of > the "V" for stiffness. Likewise the 24inch vertical mast was replaced with > a completely straight section of EMT, instead of that weird zig-zag piece I > originally happened to have lying around. > > On Tue, Jul 30, 2013 at 12:58 PM, Joshua Zukerman <[email protected]>wrote: > >> Hello list, >> >> I am setting up a PtP link between two gas stations for a client. I am >> going to be using two Nanostation M5 units going about 1/2mi diagonally >> across a highway. I'd like to mount them to a 5ft mast then to a >> non-penetrating roof mount, as the only place with clear line-of-sight is >> on the roof of both gas stations. Flat roof without much of a lip to mount >> an antenna to. All of my Google searches come up with much larger >> non-penetrating roof mounts, 3' or wider, which are designed for much >> larger and taller masts. Also very pricey, $150 or more each. >> >> Does anyone make a small non-penetrating roof mount, say 2ft square out >> of metal with an attachment to hold a 5ft mast or including a 5ft mast? >> Maybe a single cinder/cement block to weigh it down would be all that is >> needed. Won't ever need to go higher. >> >> Or do you have another suggestion for mounting? >> >> Thanks in advance, >> >> Josh >> >> _______________________________________________ >> Wireless mailing list >> [email protected] >> http://lists.wispa.org/mailman/listinfo/wireless >> >> > > > -- > Ben West > http://gowasabi.net > [email protected] > 314-246-9434 > > > _______________________________________________ > Wireless mailing > [email protected]http://lists.wispa.org/mailman/listinfo/wireless > > > -- Ben West http://gowasabi.net [email protected] 314-246-9434
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