My sunroof doesn't deform my roof either. It has the top ring that the glass and hardware mounts to, and a bottom ring that locks / clamps with the top, so it is actually sandwiched. They said they used the same sealant that you use to mount windshields and have zero leakage which these sunroofs.
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Mark
2000 Silver Insight, #5550
Pioneer P3900MP CD/MP3 4 X Polk Audio 6.5", Stealth Box
Mima #47, BCM Gauge, Escaped™ custom dual battery pack 150v 11AH battery pack, Matiz rear springs & Monroe shocks, 25mm rear wheel spacers & Blasphemer™ spat cutout
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