thats absolutetly correct they dont solve everything in fact i think they can cause more problems than there worth and like most things in life after the circle comes around folks will realize the good old asphalt shingle will be here. like John said when the snow hits the ground its turns into a hard cement like material that youre not going to simply shovel or snow blow away. they have there places like commercial buildings. if you have nice landscaping or nice deck railings kiss that all good bye when your snow and ice slide off your metal roof. stick with architecuals shingles and good ventilation.
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