Installation, composition affect life span of roofing materials

07/15/2013 | London Free Press (Ontario), The

The life span of different roofing materials varies depending on what they are made of and how they're installed, writes Rob Parker, a registered home inspector from the Ontario Association of Home Inspectors in Canada. Some manufacturers honor warranty claims only if shingles were installed properly, he adds. In this column, Parker looks at the pros and cons of various roofing materials.

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London Free Press (Ontario), The

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