posted
Have seen, but really never paid attention to how and where some holes should be placed on a banner to keep it from ripping all to shreds from the wind. Say I have a 2 X 8 banner...where should the slits (the ones I saw were in a half moon shape, I think - leaving the piece in tact) and will this work on an 11.5 oz. banner- (I can just see the thing ripping even worse with my luck.)
Posts: 51 | From: Spout Spring, VA. | Registered: Feb 2005
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Beth use the search and you will see this topic has been covered way to many times and most everyone will say do not cut wind slits ever.
-------------------- Steve Eisenreich Dezine Signs PO BOX 6052 Stn Forces Cold Lake, Alberta T9M 2C5 Posts: 774 | From: Cold Lake | Registered: Mar 2000
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On the West Coast it common to cut wind holes in banners due to the high Pacific winds.
Traditionally we used a empty Coffee can with a 6"-8" diameter to cut a semi circle(half) every 18"-24"(mainly on large banners 12'-60'), then I use a 1/4"-3/8" hole punch on each end of the cut semi circles, to help prevent the cuts from tearing any further during high wind conditions.
If you use your imagination it looks like a smile with a dot on each side, and you may want to request a charge for every hole cut($1.00-$2.00 each)to the customer upon making the sales presentation.
Good Luck, Ron Percell
-------------------- Ron Percell Percell Signs 707-769-0639 Petaluma, California
The product will save life of "wear and tear" of your outstretched banners. It will not create ripes in the material but allow High-Winds to flow through....
Still under Patent Pending so Please be Patient.
-------------------- Stephen Deveau RavenGraphics Insinx Digital Displays
Letting Your Imagination Run Wild! Posts: 4327 | From: Lower Sackville, Nova Scotia, Canada | Registered: Jan 2000
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I beg to differ Stephen. The wind load will only be reduced by the square area of the wind vents. Add it up. If you cut off a foot of banner you've just reduced the windload the same as wind vents would (on an average banner). Look at a cargo net on a pickup truck, the ones that replace the tail gate. At 50 mph those things are stretched out so much they stick out several inches behind the truck. Those things are more holes than material.
The main enemy of a banner is light tension. As soon as a banner starts to flap it is wearing out the scrim. (scrim is the nylon mesh inside a banner) A loose, flapping banner will die a much quicker death than a taught banner. Those half moon shaped cuts allow a portion of the banner to flap. Besides all that, I've NEVER seen an attractive banner with wind vents. They make any banner ugly.
-------------------- Dave Sherby "Sandman" SherWood Sign & Graphic Design Crystal Falls, MI 49920 906-875-6201 sherwoodsign@sbcglobal.net Posts: 5397 | From: Crystal Falls, MI USA | Registered: Apr 1999
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