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Installing brackets on metal clad buildings


Quick links :


Using a chimney bracket to mount a pole on the corner of a structure

No other option ? Put it on the roof ? ! ?


Most of this page is courtesy of Bill Wright.


Other possible products to bear in mind when installing on metal clad buildings are plate mounts and keeper plates :

First thing is to check with the building owner about warranties re breaching the fabric.


It’s horses for courses. But if the outer skin is reasonably rigid it can be done by the use of ordinary wall brackets, widely spaced, and fixed using any of the various gadgets sold for blind fixing to sheet materials.


Pop rivets, used in large numbers (implies a special bracket set) to spread the load. I used 3/16 steel rivets, of a length suitable for the bracket and the panel thickness.


Blind nuts are very good. Lots of makes available. Also self-clinching nuts. There’s various steel insert nuts, where you drill a hole, push the thing in, then put a bolt into it and tighten (some makes include a special tool in the pack to stop the insert rotating.) I always used M6 size. Can be as dear as 20p each but well worth the money. The hole has to be exactly the right size.


If the wall panel is very flexible and you can’t fix to the steel members behind it for some reason one possibility is to fix a large flat panel to the wall. This spreads the load and it works well. Try to span two adjacent wall panels with it. Your panel can be ¾” marine ply, well painted and sealed (use paint to match the wall panels). Pre-fix your bolts for your wall brackets to this wooden panel, fixing from the back with large recessed washers.


For low buildings, huts, statics, site cabins, consider running the mast right down to the ground so the bottom bracket is in fact a lump of buried concrete.


Bill Wright November 2018


Bill`s son Paul at Don Valley Aerials does this kind of work

L section plate mount Keeper plate for plate mount Mounting brackets and poles on the side of a metal clad building Mounting brackets and poles on the side of a metal clad building (close up) Mounting brackets and poles on the side of a metal clad building Mounting brackets and poles on the side of a metal clad building Mounting brackets and poles on the side of a metal clad building

Using a chimney bracket to mount a pole on the corner of a structure :


On the corner of a masonry structure

Mounting brackets and poles on the corner of a brick building

On the corner of a steel structure

No other option ? Put it on the roof ? ! ?


Also see mounting an install on a chimney.

Mounting brackets and poles on the corner of a metal structure Mounting an antenna on a metal roof Mounting an antenna on a metal roof (close up)

On a (slightly) pitched metal roof

Straight plate mount (bolts to flat roof mounting tray) Heavy duty flat roof mounting tray. L section plate mount (bolts to flat roof mounting tray)

On a flat roof.






Using a flat roof mounting tray (below) with a straight or L section plate mount (which bolts to the former.

See article on plate mounts / patio mounts.

On a tiled roof

(only a small antenna on a short pole)


see article on “tile & slate mounts”