RESIDENT Evil 7 is being prepared and could be about to return to the main franchise's horror roots.
The expected life of Asphalt Shingles, if properly installed, is between 20 years to 40 years depending on the weight of the shingles and the pitch of your roof. Manufacturers suggest longer but UV light plays a big role here and the manufacturers will prorate the warranty.
The right answer is B. 20 years. A roof should last 20 years for asphalt shingles. If you have cracked, curled or missing shingles and you're losing mineral granules (look in your gutters), then it's time to replace them.