Roof With Ridge Vents Is Getting Spay Foam Insulation

You re looking to insulate your attic and are wondering if you need roof vents with spray foam insulation.

Roof with ridge vents is getting spay foam insulation.

However many people think that roof vents cannot be used in conjunction with spray foam insulation. That means you get rid of all attic ventilation whether it s passive ridge gable soffit vents or active fans. Actually you should probably get rid of power attic ventilators whether or not you re sealing the attic but that s another article. The point i m making here is that a sealed attic should be well all sealed up.

Learn how the need for roof vents are determined. Cathedral roofs especially need a lot more insulation between the ceiling and the rafters because there usually isn t any attic space. The good news is that they really do work together but once again expert application is required to avoid any costly mistakes. Heat from the house rises up to the attic but when there isn t one the heat rises up to the roof.

All insulation materials require proper venting. Spray polyurethane foam is a chemical product that is created by two materials isocyanate and polyol resin that will react with each other when they are mixed and will expand up to 30 to 60 times its liquid volume as it is sprayed in place. One of the biggest benefits of using spray foam is to get greater airtightness.