Improper ventilation can cause insulation problems, mildew, dry rot and wood damage.
Proper ventilation is crucial in order to prevent moisture from building up on your roof. HEAT: The attic area cannot release heat into a roof that is not properly ventilated. Improper ventilation will cause the heat to drift into your home rather than to be released. Excessive attic heat can cause shingle failure and thereby void the warranty. COLD: Proper ventilation prevents the cold air from creating excess moisture and damaging your shingles or your roof decking. This moisture can cause wood rotting and lead to costly utility bills.
Always use galvanized roofing nails
Always hire a trusted and experienced roofer
Always make sure there is proper attic ventilation when installing a new roof
Without proper felt installation on your roof, your home will not qualify for a