Venting Roof Without Soffit
Roof in the coming months and i am wondering if there is anything wrong with adding a ridge vent knowing they have no soffit vents.
Venting roof without soffit. These specialty vents do not affect the. Venting solutions for roofs with no overhang or soffit. This creates a natural suction phenomenon where the ridge vent is sucking air out of the soffit vents creating a natural ventilation cycle. Adding a ridge vent without vented soffits.
The important thing to remember is the air must flow through the attic to the roof vents somewhere near the ridge of the roof. There current roof has lasted 28 years with just the two gable vents and about four metal roof vents along the 50 ridge. One great alternative to a soffit ventilation system is to install an intake vent right at the lower edge of the roof. The main idea of the ridge vent is to act together with soffit venting to properly ventilate the attic.
Smart vent a special roof eaves vent product that provides a 3 4 opening about 6 above the top of the roof drip edge. Thankfully there are some ways around this dilemma. With a soffit venting is not much of a challenge. Even without soffit venting it is important to provide an air gap at the soffit level to help keep the roof deck dry.
A passive ventilation system should have air inlets at the base of the roof usually in the soffits and outlets in the peak or gables. The total venting space should equal 1 150 of the floor. They call this a venting drip edge. Rafter vents or insulation baffles install in any rafter space to create narrow gaps that direct fresh air from the soffit vents to the peak of the roof.
Your other options are a roof design without ventilation an issue that is volatile and multifaceted. The venting drip edge seems to be the easiest and most common way to go. In most cases all you have to do is remove about one inch off the top of the fascia the part that covers the end of. However if the home has no soffit it is quite a different matter.
When hot air rises up through the soffit venting it then keeps rising all the way up to the ridge vent.