TexanMark
Tailgate Guru
- Joined
- Aug 15, 2011
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It helps if your roof is leak free at the time.isnt this why they tell you to leave the old roof on when you lay down the new shingles?
The downside is you can only do it once and the next roofing job will be a mess the next time.
I agree with DoubleDee but it is done mainly to save time and money...but it also "kicks the can down the road". It can also mask issues which can get worse.