renewablejohn
Member
- Location
- lancs
And there was me thinking that anything over 350mm was pointless ?
Used to think that when I had 400mm over the ceiling with a cold loft. Was then told about the benefits of a warm loft by adding 200mm to the rafters. Thought it would not work as I had also heard this tale of it being pointless but it does and is now a warm dry loft used for storage.