Before weighing the pros and cons of patching your roof, versus replacing it entirely, you’ll want to consider why the damage occurred. In addition, the extent of the damage and the age and condition of your roof all need to be considered.
Your chimney could be leaking for a number of reasons. The age and condition of your home and roof are often contributing factors. Chimneys, just like roofing material can take a beating from the elements.
Professional roofers recommend getting your roof inspected at least once a year to see if any wear and tear or significant signs of aging exist. They can tell a great deal by looking at how well your roofing materials are holding up against the environment and aging.
The most common roofing material for homes in Marin County and the Bay area is asphalt shingles.