I know many of you have leaks, help me out

i found my leaks and wanted to know what you guys used to fix small cracks in the seam sealer or just cracks in general.
seam sealer from a autoparts store, silicone (used on house doors and windows), or caulking (used in plumbing)?? and how has it help up?
seam sealer from a autoparts store, silicone (used on house doors and windows), or caulking (used in plumbing)?? and how has it help up?
Comments
there are lots of places where your going to get leaks, better have a friend thats a mechanic or know what you doing.
If it's seam sealer that's leaking, use seam sealer. Is it the roof that's leaking?
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