@LISTSERV.EDUCAUSE.EDU] On Behalf Of Mattson, III, Ken V
Sent: Wednesday, August 10, 2016 6:53 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Non penetrating roof mounted WiFi antenna
We plan on using this pad:
http://www.cableandwireshop.com/protective-rubber-mat-layer-for-non-penetrating
@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Non penetrating roof mounted WiFi antenna
We use those mounts on all our installs with a rubber mat underneath and 4
cinder blocks holding it down and they don't move at all. I agree with the
other comments of lightning arrestors, power protection
I would consult with your facilities, and more specifically a qualified
engineer that can do the load calculations, grounding requirements, check local
code, then sign-off on the install. In today litigious environment, and
depending on local code, it may be unwise to have unsecured ballast
If you’re lucky enough to have good attachment points in the right locations
you could guy the antenna instead of using ballast. This results in a more
stable installation and lighter roof loading. It rarely works out, but you
could get lucky.
Definitely use a pad under the mount. This
We use those mounts on all our installs with a rubber mat underneath and 4
cinder blocks holding it down and they don't move at all. I agree with the
other comments of lightning arrestors, power protection, appropriate
weather prevention for cabling coming through the ceiling. We don't run
fiber
U<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>>
Date: Tuesday, August 9, 2016 at 9:34 AM
To: The EDUCAUSE Wireless Issues Constituent Group Listserv
<WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>>
Subject: Re: [WIRELESS-LAN] Non penetrating roof mount
Wireless Issues Constituent Group Listserv
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Samuel Clements
Sent: Tuesday, August 9, 2016 8:18 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Non penetrating roof mounted WiFi antenna
And of course you'll want to make
And of course you'll want to make sure you can support the weight of the AP
along with it. Those outdoor units can be hefty. That is unless you're
using extension cables to hang the AP inside with the antenna outside. In
which case, proper sealing of all of your connectors, lightning arresting,
Ken,
First calculate the wind pressure from the antenna using something like
http://www.wikihow.com/Calculate-Wind-Load. A wind load of ~25 lb for that
antenna should be very conservative. Then sum the reactions (torques) at the
base of the roof mount...the antenna imparts an overturning
