ballooning mech attached EPDM

Our recently installed mechanically fastened EPDM roof seems to balloon up in winds. We live in a high wind area and 7 years ago our torch down modified bitchumin roof blew off. In addition, the membrane seems to have shrunk a bit and is pulling away from where it meets a vertical wall at the flashing. I think the wind is getting in from the wood fascia board which is installed under a metal edge. Does anyone know if this is normal? thanks
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Have you consulted with an engineer? It is not uncommon for unexpected uplift forces to exist on roofs. Uplift pressure varies with roof shape, orientation. TB
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On Tue, 08 Mar 2005 20:24:19 -0800, rob wrote:

If the EPDM was properly installed, according to the manufacturers specs, some billowing shouldn't be of concern. "Ballooning up" sounds excessive, but as I can't see it from here, I can't tell you with any certainty. If the membrane is indeed pulling away from the flashing, that is of concern and should be looked after.
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Thanks so much. I will look into it. I guess it may be more of a billowing, like when you shake a bed sheet slightly and the air ripples through. I am sensitive to blow offs. I have no faith in the installer, so... Wish me luck
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