Rich256 wrote:
If you are in a hail area check your insurance agent. I put on a
Class 4 hail resistant roof and got a 28% discount on homeowners

Ahah, a clue! After some calling around I found out a bunch of
important stuff.

UL 2218 is the destructive testing standard used to classify roof
products for impact resistance. Impact can involve hail, falling
tree limbs and pinecones etc, and tornado debris. Class 4 is the
best.

Tamko asphalt shingles are not classified for impact resistance.
That does not mean their impact resistance would be poor. My ins
co lists about 10 asphalt single products that are Class 3 or 4
and *may* qualify for an insurance discount in my region. I will
research those.

The main difference between the two Tamko shingles proposed by my
roofer is the warranty.

Una