Originally Posted by
budwom
I'd go with metal if it's standing seam...got mine 21 years ago, it looks like the day they installed it. Marvelous.
I'm not sure of the status of asphalt based shingles these days..they went thru a horrid period a decade or so ago when nearly all the major brands cheapened their recipe due to the price of oil, and it led to astronomical failures...had a friend with alleged 30 year architectural shingles, they failed in five years...this was very common, the manufacturers (sensing bankruptcy) denied almost all claims claiming that installation was wrong, etc, etc...there was a local handyman savant who had a column in our local rag, he wrote about this for years, it really was a mess...SO, you might want to make sure that whatever shingle you might choose is actually holding up well...
If you go with metal, do be advised that your roof dynamics will change, especially if you have snow...I am available for free consultations!