The rear garage door leak really bad in heavy rain, the rain runs down from the roof about halfway along the door under runs under the frame and into the garage. I reported it on both the first have and the second one nothing was done and mostly we have been lucky with the weather. But here at out cottage in France the van has been parked up for a while and every time it rains the boot gets flooded. I have tried draft excluder tape of various designs but have now resorted to making a drain hole during last nights heavy rain there was over 2 litres in the bucket, which was in under the van and out of the rain.