Vaulted Ceiling No Attic

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.

Vaulted ceiling no attic. What to do with roof with no air flow space. From a new home building viewpoint a vaulted ceiling is no more complicated than standard construction where the house is framed with two full stories but it does raise the cost of construction by 5 to 20 percent. I have a roof with no attic space in the living room and experience radiant heat coming through the ceiling in the summer. A vaulted roof offers open living space directly below the rafters because there are no horizontal ceiling joists.

What it means that there s no accessible attic between the ceiling and roof surface only narrow rafter truss space which should be partially filled with insulation. You ll need an hvac contractor to determine whether your heating system can handle the increased volume of a room with a vaulted ceiling. Suggestions for un vented or hard to vent building roof cavities. And remember that vaulted ceilings reduce the amount of livable floor space in the home.

I have added sheet insulation to keep the heat in but as a result now there is no space between it and the sheathing under the shingles. When you look up inside the house you see 4 x 10 beams every 6 feet running as rafters would and then you see tongue and groove 2 x 6 roof decking running between the beams. Anything in the area to be vaulted will have to be relocated. Although there is no separate attic to vent air circulation is still necessary.

Condensation forms on vaulted ceiling under it. You ll want a tight ceiling air barrier with no air leakage into the cathedral ceiling a critical detail for all cathedral ceiling designs. Inside it has exposed beam vaulted ceilings. Also before you start the work consult a structural engineer to make sure the collar ties are in the right place to prevent the walls from spreading apart after the ceiling joists are.

Cathedral ceiling no attic space return to is a metal roof right for my house. 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. Worries about the hot roof un vented cathedral ceiling designs how to. There is no attic there is no insulation whatsoever.

It is a low slope shingles roof over cathedral ceiling house with no attic.