High winds = Torn Banner?

[Andrew Martin]

This depends on how you finish your banners, what I do if extra corner strength is needed is to cut a triangular piece of 550gsm pvc and sew it into the corners at the back of the banner when the hems are being done, Also a piece of reinforced tape under the back of the eyelets helps too.

[Mo Gillis-Coates]

Sounds like you need the sliding banner frames for your client.. flexi track or something like that

Spandex do something

http://www.spandex.com/UK/sign_systems/ … Track.aspx

[Andrew Martin]

quote Mo Gillis-Coates:

Sounds like you need the sliding banner frames for your client.. flexi track or something like that

Spandex do something

http://www.spandex.com/UK/sign_systems/ … Track.aspx

Still wont help the banner from tearing at the corner eyelets though Mo

[NeilRoss]

I’ve done a good few banners over the years – some of them bigger than a curtain-sider – and the best/strongest way we found was either to thread the rope through each of the eyelets in turn from end to end of the banner and use the ends to tie it off – that way the rope takes the strain. If you need to hold it straight at a few distances across, then use short ties on each eyelet just to keep it level but let the main rope take the strain. Or preferably have the rope fed through the hems (top and bottom) and again the rope takes the strain. The weight of material of course is always a major concern for external work.

So I guess it depends how well he had it secured. We did one once using eyelets. Showed and explained to the client how to fix it using the single length of rope_through_eyelets method. He was OK with that but didn’t pass on the instructions to some bods he sent off to string it up. They used a number of short ties (one on each eyelet) and no main ropes to take the strain. The wind got up a couple of days later and you know the rest!

I’d imagine a banner tied to a cage on a trailer would take quite a bit of battering on the motorway though.

[David Rogers]

Tore whilst on motorway. Sounds like a bit of a nutter. Even doing 50 or 60 thats a constant gale force wind…really, what did he expect?!

Laying in a strip before hemming. I never stitch these high load types instead prefer to tape or get welded.

Dave

[John Wilson]

I’ve attached what he sent me

We only hem the banners with tape, i’m going to suggest to him that he lines the inside of his trailer with ply wood so the wind isn’t hitting it as hard from both sides

Plus he’s got tree cuttings in the trailer so it’s only a matter of time before a branch goes right through it

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[Robert Lambie]

couple of things ide say from looking at the picture john…

he really shouldn’t be using this on a vehicle.

the grade of banner you are using looks lightweight.
banner material is made in various different ways, thicknesses and so on.

as has been said, use your banner off cuts where eyelets are being placed.
this doubles up the strength and spreads the load on each fixing/eyelet.

regardless to the above…

i wouldnt say the "wind" has torn that at all. the banner looks in good condition.
those tears are abrasion from something that has heavily rubbed against the face of the banner. in doing so has created an impression of the mesh directly behind it.
a heavier duty banner would have less damage but regardless, that damage is not due to wind load.

theres nothing wrong with your hemming or method of hemming or the position or type of eyelet used. although a tie-it were each eyelet is will further reduce any possible damage. 😀

.

[Hugh Potter]

Like Rob says,
from that photo it’s quite clear to see that constant buffering from the wind has simply worn it away where it comes in contact with the cage. nothing you can really do about it. tell him not to be so tight and make a couple of composite panels.

[Robert Lambie]

i recon its impact from something hitting it hugh, not the wind mate.
its almost flaking on the face and only in one area of the high ground of the mesh in a sorta diagnal line. if it was wearing from the rear it would be more random areas and wider spread. it would also be more thinning of the banner showing on the face than the flaking worn look.