concrete 最好吧

cedar shake can be replaced with synthetic shake.  I don't know what synthetic shingle is, a simple google seems to suggest it's just a different name for synethic shake.  

cedar shake is the most expensive one over the years because it has to be replaced every 20 years.  Concrete can last 50+ so maybe 3x life time of cedar shake.  

also it look like tile roof, more luxurious?