Embarrassed that I have to ask. A roofer from the Ins. Co. described these as "Lifetime Singles w/50Yr Warranty" and his report estimates the age at 20 yrs. Although I have only been doing this since 2005-ish the look of the shingle, his estimated age and the description don't seem to match. have attached a .pdf with a couple of pics and genuinely appreciate any help. Keith
Where is the attached pdf?