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TOPIC: Standing Seam roof

wind lift on leeward side

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We have a standing seam metal roof on a 9/12 pitch. The roof is sloped on the north and south sides. We live close to a mountain and get tremendous winds out of the SW. We have had to have screws retightened or replaced several times(all on the NW side). Last week we had a roofer tighten the screws and double the number. A few days later we had high winds which loosened a couple of the screws. Is there some kind of baffle or decorative element which will lessen the lift on the leeward side?
Guest User

11/11/2002
I am confused. A standing seam roof has concealed fasteners and once the roof is down you can not come back and tighten the screws. I am assuming that you have a vertical rib panel with exposed fasteners. First I would contact the manufacturer, describe the roof assembly and ask for directions. A properly installed metal roof will not do this. Possibly they have undersized screws into an OSB board that were tightened too much and not enoiugh of them. A screw into plywood requires a certain type of thread, diameter, into a minimium of 1/2" plywood and the screw must penetrate through 1/4" in order to have a certain pull out strength. generally it means a minimum of a #10 screw with a certain pitch on the threads etc. If they used standard siding screws which are #9 diameter and a steep pitch into thin material you will have a problem. Contact a screw manufacturer who can recommend a proper replacement screw. We buy our long life screws from Atlas Bolt and Screw in Ohio.
Allan Reid
Dura-Loc Roofing Systems, Inc.

11/11/2002
i just installed a standing seam metal roof over strapping. at winds of 15mph or more the metal roof shakes and makes a terrible noise inside the house. it sounds obviously like metal shaking back and forth.
Guest User

11/5/2003
i just installed a standing seam metal roof over strapping. at winds of 15mph or more the metal roof shakes and makes a terrible noise inside the house. it sounds obviously like metal shaking back and forth. what can i do to eliminate the noise?
Guest User

11/5/2003
Please contact the manufacturer of the roofing to verify that your roof has been installed correctly. Once you confirm this, please feel free to contact me again if the problem persists. Todd Miller
Todd Miller
Isaiah Industries, Inc.

11/5/2003
I spoke with the manufacturer yesterday which he called wind chatter, a problem he said could be fixed. He suggested rivetting a hole into the rib, a 1/4inch from the top. This would brace the lose panel to the adjacent nonchattering panel. Have you heard of this or is there another option?
Guest User

11/6/2003
Without seeing the roof or knowing exactly what profile of metal panel is installed and how it's been fastened, I would suggest trying the manufacturer's advice. However, if I were you, just to be safe, Id' request them to put it in writing before proceeding. Todd Miller
Todd Miller
Isaiah Industries, Inc.

11/6/2003
I have heard of the wind chatter before. Without knowing which type of panel you have I would trust the manufacturer. In my case we drilled a hole and used a #14 stich scew to sew the panes together. I will say that it is am indication of insufficient venting and have somebody look at this. It is possible that there is not enough eves ventilation and a ridge vent is syphoning from the joints in the roff sheets.
Allan Reid
Dura-Loc Roofing Systems, Inc.

11/6/2003