The provided content does not state the specific lifespan of asphalt shingles in Port Moody. While it notes that Port Moody has a damp climate that can accelerate the growth of moss and algae on asphalt shingles, and that the region experiences heavy rainfall and freeze-thaw cycles requiring specialized roofing solutions, it does not provide a specific number of years that shingles last.
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Why is Torch-on Roofing Often Recommended for High-rainfall Areas like the Lower Mainland?
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