Exert taken from the CMHC website...
Avoiding Basement Flooding
Basement flooding is unfortunately a common occurrence in many parts of Canada. But the good news is that many types of basement flooding may be avoided. This publication explains some of the practical steps you can take to avoid basement flooding.
How Serious Is Basement Flooding?
Basement flooding is now being recognized as a potentially serious problem. There are many negative consequences associated with basement flooding, above and beyond the inconvenient mess and disruption of household routine. Research cites the following impacts:
- Chronically wet houses are linked to an increase in respiratory problems.
- Frequent occurrences of basement flooding can result in long-term damage to the building and equipment that may not be covered by insurance.
- Insurance rates may rise to compensate for repeated basement flooding claims, and/or the minimum deductible may be increased significantly.
- Property value may depreciate because the basement is prone to frequent flooding.
Before appropriate measures can be taken, it is important to identify the causes of basement flooding. These range from problems originating in the individual dwelling to problems associated with the municipal sewer systems that serve entire communities.