Internal insulation

dande

I'm currently looking at renovating my old house. My plan is to externally insulate the existing walls as it is a house from the 1940s and the walls are made of concrete and rubble. I am going to extend using traditional 300mm cavity wall with 60mm insulation in the cavity. I was thinking of increasing the insulation and the size of the cavity but because I'm externally insulating there is no point.

I had planned to add insulated plaster board on the internal walls but now I'm thinking I won't because if I leave the walls just plastered they should work as a thermal mass and help hold the heat.

Am I better off not adding plaster board to the internal walls.

Thanks

BryanF

dande wrote: »

I'm currently looking at renovating my old house. My plan is to externally insulate the existing walls as it is a house from the 1940s and the walls are made of concrete and rubble. I am going to extend using traditional 300mm cavity wall with 60mm insulation in the cavity. I was thinking of increasing the insulation and the size of the cavity but because I'm externally insulating there is no point.

I had planned to add insulated plaster board on the internal walls but now I'm thinking I won't because if I leave the walls just plastered they should work as a thermal mass and help hold the heat.

Am I better off not adding plaster board to the internal walls.

Thanks

Block on flat and ewi for the extension?

dande

Thanks for your feedback. 200mm cavity beaded insulation and or traditional board insulation