Quote:
Originally Posted by TorqueDog
Garage was built along with the house in 2008, but I don't know when they were last redone. I'll get them checked by someone who knows what the hell they're doing to see if they need to be changed.
That's a good point about the concrete thickness, I haven't checked it yet. I'll have to get some of this stuff lined up for the spring and see where we're at. If the garage shingles have a few more years left in them, that aligns with my timeline so it might work out perfect. Unless the shingles are brand new and the concrete pad is too thin, in which case FML. 
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Ya, the important part will be making sure the concrete is to spec. No point in going further until you know that. You may have to jackhammer out a larger area and re-pour if it is not. The lift will have specific requirements you will need to check. I did some looking before I built my garage, and I think it was at least 5" thick of a specific quality. That might vary if you do a 2 or 4 post.
So your shingles are 11-12 years old. Not to bad, but if they are the cheapest ones they are only warrantied for 20 years, I think, but can look pretty rough by then. So even saving the roof means new shingles in roughly 10 years anyway.