Cape Cod Attic Ventilation

There are as many ways to do it as there are people who do it.

Cape cod attic ventilation.

This is not very easy in most of the older houses we work on because the hatches and attics are too small to get rigid foam board through. Intake of the air from the soffit fascia areas the exhaust of the air from the ridge and properly insulated attic. Cape cod roofs present a special problem in that in the usual cape design there is a lower attic knee wall enclosing what amounts to a low attic followed by the equivalent of a cathedral ceiling over the middle section of the roof often penetrated by dormers when the second floor of the cape cod is designed to be occupied followed again by an attic design for the upper third of the roof. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.

An easy way to ensure that your attic ventilation system is balanced is by using air vent s edge vent for intake and shinglevent 2 ridge vent for exhaust. This product is also the best solution for effectively insulating the cape cod style house. Turbine vents that spin for free in the wind suck lots of air out of an attic. Powered attic ventilators pavs use electricity to spin a fan blade.

For the ventilation to work properly there are three very important components. Ventilating attic space is easy to do. From flat to cathedral in fhb 192. Intake vents located at the lowest part of the roof under the eaves allow cool.

Outside air needs to be able to come in through the soffit vents and travel along the underside of the roof sheathing so there can t be blockages up to and out the ridge vent. 3 ridge vents are the most efficient exhaust vent for your attic. It s good that you have an air barrier on the attic side of the knee walls over the insulation. Soffit ventilation is required to replace all the air that s exhausted.

If the rafters are deep enough it may be possible to use rigid foam as the ventilation baffles sealing along the perimeter of each piece to create an air barrier then filling the rest of the cavity with batts or blown insulation see ceiling remodel. One of the best methods is rigid foam board with sealed joints over insulation in the knee wall. Together they are part of the balanced system for optimum attic ventilation.