Question
We have a raccoon that has decided to use our roof as it's personal latrine.  This just started about a week ago.  My husband is removing it (using protective gear -gloves etc.)  How can we stop the raccoon from using our roof for its bathroom?  We have contacted a pest control place but they had no suggestions.

Answer
First, you need to make sure the raccoon is not using your house as a home. Details on inspection are at http;//icwdm.org

As for preventing access (assuming the raccoon is not living there),
1. trim back tree branches,
2. install porcupine wire at corners, downspouts and other spots where raccoons can climb. They can't climb flat surfaces but can easily climb corners.

Use three strips of 1 foot long porcupine wire laid out horizontally at least 9 feet off the group to reduce likelihood of human injury. Space them 4 inches apart at the tips.

Again further details at http://icwdm.org including information on what to look for in hiring a qualified wildlife control operator.