I reside near Hanover Ontario and six and a half year's ago I erected a tarped structure 30' x 40' which was sold to me by Calhoun Agri Services. The structure had a clear strip down the center of the roof for light. This year I noticed that the seams were letting go on the stripe I contacted Calhoun and received no reply. Three week's ago the structure collapsed and now 6 1-2 years latter I have no building. I called Calhoun again and no one returned my call's I drove to their office and... read full review »