How to insulate a tongue & groove ceiling?

[wellz]

Hi everyone,

We are living in a small unit which has a ceiling made of tounge-and-groove board. I don't know the materials. It's around 20mm in thickness. I'm looking into insulating the ceiling. Is it worth it? How would we do it? Do we just put ceiling insulation batt on top of the ceiling or is there another way we can do this?

Photo from our unit looking up to the ceiling:

This is on the attic:

The tounge-&-groove board. 

Thank you! 

 

[MitchellMc]

Hi @wellz,

The correct place for the insulation would be between the beams under the tongue-and-groove boards. You'd then plaster over the insulation by attaching it to the beams. Obviously, the ceiling sheeting has been previously removed, perhaps for aesthetic or height-restriction reasons.

If you don't intend to use the roof space, I can't see any reason why you couldn't lay insulation batts across the top of the T&G boards. You'd need to ensure the whole space is covered. I see you already have an insulating blanket on the underside of the roof. This would provide some insulation, but if you are still experiencing unpleasant temperatures, then additional insulation should help. There's also a possibility of insulating on top of the existing blanket, which would prevent the roof space from being unusable due to insulation on the floor.

Please let me know if you have any questions.

Mitchell

[wellz]

Hi @MitchellMc,

Thank you for your response. Unfortunately installing insulation between the beams and adding ceiling plaster is not an option for us. So we'll go with adding the insulation on top of the boards. We don't really use the ceiling/attic space so this is not an issue. Thank you for your help.