It's taken them 76 years to find 20mm cannon holes? "The mystery of a leaking church spire has finally been solved after more than 75 years has finally been cracked after it was revealed it was strafed by Nazi planes during World War II. Restoration work at St Peter's Church in Folkestone, Kent, had to take a break over the last few months to investigate the damage to the church spire. After the seven-decade mystery which has seen the building leak since the war, workers discovered the holes were caused by strafing from Luftwaffe Messerschmitts. Now restorers solved the riddle and concluded that damage caused by bullet holes in the lead roof was caused when German planes attacked the town during the Second World War. Remarkably, records even show the exact minute the place of worship was shot by the 'Hun.' Church records report a raid by Messerschmitt bombers making 'a lightning attack in the harbour area' on March 27, 1941, at 9.23am." Mysterious leak at Folkestone church solved after 75 years | Daily Mail Online
I have chased a lot of roof leaks in my life, often the leak is along a ridge cap or cricket but the water runs down a raft to actually drip some feet away. But a clean penetration seems like it would be obvious unless a quick temporary repair covered the hole . Interesting, Gordon, poor Folkestone was an easy target !
Looking at the picture of the outside you can see the hole was made in the original lead flashing. Then a 2nd piece of lead was tacked up over it covering the hole. Like blackwell posted a quick repair that reduced the leak but didn't solve it.
Yeah, a real frontline town. Given the wartime shortages of materials, suppose it was inevitable that somebody did a quick patch-up job that was soon forgotten about.