humidity from your attic is to install a roof ridge vent.  This system is designed to work in conjunction with under eave soffit ventilation.  If your home lacks soffits ventilation or the soffit area is solid (non venting) you will want to have a qualified contractor install some type of soffit ventilation. Be aware that some roof ventilation configurations may require special consideration and recommendations to perform properly. Ridge vent works best when used in a balanced attic ventilation system.  This requires the volume of air intake (such as under eave vent)  to match or exceed the volume of air exhaust (such as ridge vent).  Ridge vent also is available in many different configurations and colors to compliment your new roofing. Central jersey roofiing recommends owens corning as one of the best makers in our opinion.  owens corning ridge vents feature external wind baffles to protect against water infiltration while creating negative pressure

temperature but also when and if the attic reaches a certain moisture level. This can be key in colder months when the temperature is low but the humidity in your attic is on the rise. Warm moist attics in winter months contribute to many problems not the least of which is the formation of ice dams. Proper attic ventilation in combination with snow and ice shield underlayment are a good choice when considering re-roofing your home. For more information and a free no obligation roofing assessment on your home call Central Jersey  Roofing & Siding contractors.