Dormer Roof Insulation for 1970 Semi Detached House Renovation
Information, help, tips and advice on cavity walls, ceilings and lofts etc....

2 posts   •   Page 1 of 1
Welderman
Labourer
Labourer
Posts: 1
Joined: Wed Mar 01, 2017 5:38 pm

Dormer Roof Insulation for 1970 Semi Detached House Renovation

Post by Welderman » Wed Mar 01, 2017 5:53 pm

Hi to all and thanks to anyone who can help me with my question.
I have done many hours researching and just cannot find the correct information.
I live in a 1970 semi detached house and we have just started to renovate the house, I know there is no insulation in the flat roof and exterior upstairs walls.
Here's what I have on the walls from outside in: Tile-batten-felt-75x50mm stud work then 12.5mm plasterboard. Should I leave a 50mm air gap between the felt and insulation boards the same as I would do inside the ceilings. Many thanks guys

stoneyboy
Project Manager
Project Manager
Posts: 6391
Joined: Wed Dec 10, 2008 6:44 pm

Re: Dormer Roof Insulation for 1970 Semi Detached House Renovation

Post by stoneyboy » Thu Mar 02, 2017 9:52 pm

Hi Welderman,
Yes do maintain an air gap between the insulation and felt.
Regards, stoneyboy

2 posts   •   Page 1 of 1
It is currently Tue Feb 06, 2024 9:44 am