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how would i fix sign to a flat roof?
Hi gang,
I have a sign that has to be fitted to a flat roof. It is an open 3 sided sign (like 1/2 an octogon) Yes i know an octogon has 8 sides but i cant remember what a 6 sided shape is called. 😀
the sizes are 4×4, 8×4, and 4×4 and will probably made out of reynoboard or something similar.
The problem is fixing them to the flat roof. Flat roofs have enough problems without me drilling them and causing more leaks.
have thought aboutmaking a triangular frame extending from the back of the signs and then weighting it down with sandbags but the more i think of that the more i want to don my stetson and get on my horse,if you know what i mean.
Any one out there got any ideas that can help
Iain
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6 Replies
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I have done this before. I had some steel brackets made and bolted them to some kerb stones which sat on the roof. It wasn’t quite as big as what you’re talking about though, about 8 x 2. I should imagine an 8 x 4 will have quite a lot of wind resistance, so be careful!
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Ive thought about the size issue but that is what the customer wants.
Ive just done a lightbox for the customer, it was his own design, black, yellow and lime green. he now wants this 3 sides sign just above the lightbox and no doubt it will be blue, purple and orange…
Guess what? this guy is an accountant
Iain
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Iain,
I recently removed a sign on a rubber rood that wasn’t bolted.
The roof was 25 ft. High. The panel was 4′ x 8′ Wood and had a wood 2 x 4 frame, like a triangle… that was held down with concrete blocks. 35 of them. it also was tied off at two points to existing fixtures on the rood with rope. It didn’t go anywhere for ten years, and the concrete blocks weren’t very heavy… not as heavy as sand bags.
I think you’re on the right track with a frame and sand bags. So, if it’s any help, i’ve at least seen one done like that. -
Hi Iain,
not done a sign like this before but have had to stack things on a flat roof,
I’am sure enough sand bags or blocks will do the trick.What you do need to do is make sure that there are no edges that will cut into the roof, something that looks flat and smooth now, might over a period time start to sink in to the felt, especially when the weather gets hot.
use old rubber backed carpets or something simular to help absorb the weight, my guess is that you already have this angle covered, no harm done.
Russ
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I recon all these solutions are good ones, but… if I chose one I would bolt concrete blocks to the steel frame. kids climb onto roofs for their balls, kites etc they see sand bags they could move them… weeks later along comes a storm, lady walks out the shop and gets a steel framed sign on her head, end of story for both your business and her! Sorry to sound so blatant there, but id hate to think of this happening.
I have similar job just now, im using 4inch screws with metal washers with rubber under seal. Screw thru the frame into the wooden beams/trusses. Just run some soft roof tar around the edges of the frame. “Then” place some sandbags for extra security.
Im not going just that far as my jobs not anything as big. But im using steel L shaped brackets and a banner as opposed to sold boards. -
Thanks for the replies guys.
I havnt been on the roof yet, but at least i have something in the locker when he starts asking questions.
Once again thanks
Iain
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