"Norminn" wrote in message

What is an architectural shingle?

Years ago, all roof shingles were three tab design. they all look pretty
much the same aside from color. Architectural shingles are more random
looking. Some look like cedar shakes, some closer to a slate shingle.
http://www.gaf.com/General/GafMain.asp?Silo=RES1&WS=GAF

Like anything else, the more you pay . . . . . .