Roof insulation

[JonHeath]

Hi all,

I'm nearing the end of my extension. I'm having a new roof section at the top of the house that merges into the existing roof. I'm also having a new ground floor pitched roof at the back of the house.

I've been trying to research insulation regulations but I can't find a clear answer. Should the rafters on these new roofs be insulated or doesn't it matter as long as the roof floor is insulated?

Any guidance much appreciated.

Thanks
Jon

 

[^woody^]

Insulate at ceiling level unless you are having a room in the roof. Keep the house warm not the loft.

 

[JonHeath]

Thanks Woody. Ceiling level it is then. Yeah not planning to occupy either roof space, with the exception of a sun tunnel coming through the top roof void. Main thing was I wanted to check that rafter ventilation isn't part of the regs these days.