hi just been away for the first time this weekend we have put our ultima 260 awning up which we havent used for the past 18 mths. the weekend consisted of lots of heavy rain causing the awning to leak. the awning leaked right along the seam of the awning bead. is this caused by lack of use ie not used for the last 18 mths. if so can this be reproofed. any advice appreciated thanks shirley