I had a roofer say that the advantage to Shake is that it can be repaired many, many times.
But once the shingles get old and dry, they curl and can leak.
The sun does most of this damage.
Cedar is naturally waterproof.
Anything that you can do to prolong the life of your roof would be recommended. I would refer you to a roofing specialist or a contractor who specializes in that type of roof. Please contact me if you need a list of experts who can answer your question.
Frank Dolski MBA, ABR, e-PRO
Certified Relocation Specialist
Previews Luxury Home Specialist
Coldwell Banker Hearthside Realtors
2012 Coldwell Banker International Presidentâ€™s Elite Award
2010-2011 Coldwell Banker International Presidentâ€™s Circle Award