Can you insulate a raked ceiling?
Matthew Barrera
Published May 21, 2026
Can you insulate a raked ceiling?
Raked ceilings with exposed beams may look nice, but they are near-impossible to insulate. Nearly half the house featured raked ceilings with exposed beams; this meant the roof tiles backed onto the cedar ceiling lining, giving us no ability to insulate between the roof and ceiling like you could with a cavity roof.
Can you insulate a pitched roof?
The best way to insulate a pitched roof is by installing insulation between and above the rafters. This approach can be used to create an unventilated roof structure, helping to keep out unwanted drafts. As there’s no insulation below rafters, headroom is maximised, creating more useable space.
Is a raked ceiling worth it?
Enjoy more air flow. A nice byproduct of creating more space with a raked ceiling, is the advantage of more air flow within your home. Our raked ceilings are in the open plan areas, where you will also find double door openings to the outdoors.
Can you insulate a cathedral ceiling?
The Best Practice for building insulated cathedral ceilings is to create an airtight roof assembly. You have two Best Practice options: vented batt insulation and unvented spray-applied insulation.
How do you insulate and vent a vaulted ceiling?
The bulk of moisture moving into any insulated cavity is driven primarily by air. The Best Practice for building insulated cathedral ceilings is to create an airtight roof assembly. You have two Best Practice options: vented batt insulation and unvented spray-applied insulation.
How can I insulate my sloping ceiling?
If this is all unclear, you will have to drill a hole in the ceiling and take a look with a boroscope. How can you insulate a sloping ceiling? If you want to insulate the roof, the first step will be to strip away the plaster and reveal the supporting beams underneath – usually wood.
What kind of insulation should I put on my Ceiling?
Also, plan to ventilate the space with intake vents and cupolas. Then, install 12 to 16 inches of blown-in fiberglass or cellulose, leaving at least 6 inches between the insulation and the roof sheathing for ventilation purposes.
Can you insulate a sloped roof with cellulose?
If you want to insulate a sloped roof with cellulose, you need to install rafters, not trusses. Since you have chosen trusses, that limits you to spray foam. Even if you find a way to insulate the flat ceiling, you have all of the disadvantages of an attic with none of the advantages.
Where does insulation go in a vaulted ceiling?
In homes with flat ceilings and unfinished attics, insulation doesn’t interfere with fresh air entering soffit vents, located in the eaves, and exiting near the roof peak. In a vaulted ceiling, however, the only fresh air route lies between the insulation and the underside of the roof deck.