The deep TBH is redesigned. It doesn't look that fancy anymore but it will be much warmer than the original design. The old roof doesnt fit anymore so I will have to make a new one. The old roof will be donated to one of the twin Drum Top Bar Hives.
Original hive walls are 25mm. I added one more wall making totall wall thickness of 50mm. The ends remain 25mm since the comb is facing them (comb act like thermal walls)
To the left side I added a vertical wall which will be facing the windy side. There is lots of space behind this wall to fill it with insulating materials ...
This wall acts like a door which is exposing the window ...
The window was the real reason for me re-designing this hive. The window glass is way too big for this cold swedish climate in my opinion. Most swedsih beeks have hive walls which are 30-50mm thick.
As I mentioned earlier the ends remain 25mm because the back end has a follower board and space behind it which will be filled with insulating material. The front end has the wax combs behind it and will be pointed toward South-East.
Now I have to make a new roof and give the hive new legs. I will varnish all hives in spring with linseed oil and wax mixture.