We have a Danmar Garage Door installed in 2012 by Quicklift. It is a Danmar Ply (Flat Ply) – 2440 high x 6150 wide made up of 12 ply panels approx 2000 x 600. We have had continuous problems since installation with the panels bowing under the hot westerly sun in late afternoon and pulling away from the door. We want to replace these panels with a suitable metal alternative – preferably still in sections with the black recess between. We have seen your Thermopanel but would consider alternatives also.,