The problem of roof ventilation is one that many homeowners have to face once in a while. The combination of inadequate attic insulation and roof insulation can cause a lot of problems in the long run, and some of them are quite important to address.
Poor roof ventilation can cause the rapid deterioration of your roofing system. If you find that your roof is uneven, or upon inspection you discover that the decking and underlayment is suffering because of excessive moisture without any obvious source of a leak, chances are that the excess moisture appeared as a result of poor ventilation.
How else can you tell if your home has poor ventilation? Ice dams form when heat escapes from a poorly insulated attic. When that happens, you can often see large amounts of ice accumulating, and at the same time, you’ll find your attic is much colder than you’d be comfortable with.
In the summer you might also find that excessive heat can cause your AC unit to work much harder than usual. It may even overheat and malfunction as a result. This is a sure sign that your insulation and ventilation isn’t properly balanced. To rectify the problem, you can clear your vents, examine your attic and ceiling insulation and install added layers, or have a roofing contractor check up on your roof and suggest what repair work might be needed - http://www.roofonemichigan.com/east-lansing-mi-roofing-experts.html.