<strong>Yahoo Message Number: 108493</strong>In 2012 I replaced all of our 12 year old window awnings. Zip Dee sews with an overlapping stitch strips of canvas together to obtain the appropriate width for the window. In 2012 both the seams and the canvas failed.<br/><br/>Now on one window 2 of the double seams failed in a moderate windstorm. The thread failed but left the canvas intact. Actually...