Why would they? They are very common in some areas and a good cedar shake roof will last 50 yearsDo the agencies have any issues with this type of roof?
Extremely common in most east coast beach towns, including the Delaware beaches...cedar shake roofs are great for the beach due to their ability withstand high winds.AFAIK... Any type of roofing material that works is acceptable; I don't remember ever reading anything in Fannie's guidelines that spoke to roofing materials.
Wood shake, usually cedar in my experience, is common in some areas
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