Insulating sloping ceiling/roof of dormer room?

[grarobcos]

I'm looking to add insulation to our 1960s dormer bungalow and would like to know if there's any special considerations to be aware of for the sloping ceiling/roof section of the upstairs rooms?

I'm looking to use the Knauf roll insulation stuff from B&Q, would this be suitable for 'stuffing' into the space between the plasterboard ceiling and roof sheeting?

Thanks in advance

Graham

 

[freddiemercurystwin]

You need to keep a 50mm air gap from the top of any insulation you fit and the underside of the felt. unless you don't have any felt in which case you can fill the void.

 

[grarobcos]

Thanks for that Could be fun ahead....

 

[geraldthehamster]

I'm looking to add insulation to our 1960s dormer bungalow and would like to know if there's any special considerations to be aware of for the sloping ceiling/roof section of the upstairs rooms?

I'm looking to use the Knauf roll insulation stuff from B&Q, would this be suitable for 'stuffing' into the space between the plasterboard ceiling and roof sheeting?

Thanks in advance

Graham

Are you talking about the sloping bit where the dormer isn't, that goes up and joins a flat ceiling?

If you are, then how much space is there between this "sloping ceiling/roof "and the underside of the roof; i.e. how deep are the rafters?

Cheers
Richard

 

[grarobcos]

Richard, yes the sloping ceiling. The rafters are about 4".