I don't think the Korkers could have caused much damage, the shingles were cold thus I don't really feel they could penetrate the shingles, if they were warm than I could see them penetrating. It's a second layer of shingles that my step father and I put on 22 years ago and it's time for stripping and replacing anyhow, after all the water dam issues. I am going to the Home show next weekend to look into having Interlock roofing installed, unless it's too expensive compared to other options, and now that my stepfather has passed and I no longer have the sack for heights, I'm leaving it to the pro's. Now I'm wondering what type of penetration the Korkers could of had, I think I'll have to experiment with them on some cold shingles, on the ground/driveway which won't have any give unlike the roof.
Has anyone found Korkers cause damage this time of year or is it speculation? I still think having the weight off the garage and the ice dams under control will be less costly than what the Korkers could do, time will tell and perhaps it will be another lesson learned
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