Cathedral Roof Venting Options

Hello just looking for a little help with my ceiling.

Cathedral roof venting options.

Cathedral ceilings built using 2 x 12 roof rafters allow enough space for the fiberglass batt insulation and a 1 5 gap for ventilation. Does air movement wind washing through a vented cathedral ceiling cause heat loss through the insulation. Proper ventilation even with the attic bypasses sealed and effective vapor retarders installed proper ventilation is essential to prevent moisture problems in cathedral ceilings. As much as regular attic ventilation is an important part of your house maintenance routine and usually easy to perform cathedral ceiling ventilation maintenance might be difficult or even impossible to do.

I built a new log home this summer and made a mistake with my cathedral roof. The intent of roof venting varies depending on climate but it is the same if you re venting the entire attic or if you re venting only the roof deck. No tools cutting or fasteners needed. Depending on your house interior and roof framing design cathedral ceiling ventilation can be treated as an independent or attic ventilation related condition.

A balanced system of soffit and ridge ventilation provides continuous ventilation of hot moist air at the hottest point of the roof. I was told by a relative to use a new method of 1 of spray foam and roxul r30 the 1 of spray foam would be enough to not need to vent the roof. Should i install an air barrier in the cathedral ceiling above the insulation. Solar age magazine articles on renewable energy energy savings construction practices best practices guide to cathedral.

Some vaulted roofs don t have individual rafters but instead feature pre engineered trusses. Research has shown that the amount of airflow in the vent channels of low slope roofs is very limited for roofs with less than a 3 12 pitch. Vaulted roof trusses are slightly misleading because the degree of vault on. Cathedral ceiling ventilation design guide how should i vent a cathedral ceiling.

Just slide sections into existing gutters. You ll want a tight ceiling air barrier with no air leakage into the cathedral ceiling a critical detail for all cathedral ceiling designs. Suggestions for un vented or hard to vent building roof cavities. In a cold climate the primary purpose of ventilation is to maintain a cold roof temperature to avoid ice dams created by melting snow and to vent any moisture that moves from the conditioned.

How to avoid condensation leaks attic mold insulation mold structural damage to roof framing when roof venting is not possible cathedral roof and knee wall insulation venting air path options in older homes hot roof designs.