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Hello all
As many others on this forum I'd like to go ahead and insulate my garage. However, I am going to use it as a DIY workshop - I do not intend to live in there. The garage is a double garage single skin brickwork and it's currently as cold/hot as the outside temperature.
I am not looking for 20°C and sitting down watching telly - I am just trying to be able to bring the temperature up to a reasonable level while I am there tinkering with my hobbies.
I know that insulation is kind of binary: either you do it fully or it's a waste of time. But I read somewhere that if I insulated the ceiling it would be a great improvement and maybe I can then move from there. Shutters are metal ones so those would require replacing as well and all the walls would need to be done - I'm just trying to see if I can obtain an acceptable result by doing the ceiling and seal gaps only.
Please see below a picture of the roof structure.
I was wondering what the best course of action would be. Celotex or similar between the rafters or just board the joists and put some celotex/rockwool in between? Boarding the joists seems the best idea as the ceiling level would be much lower and I guess the heat would fill up the room quickly.
As I may not be using the correct technical words, I've made a quick 3D sketch.
Green: boarding the joists and add rockwool/celotex. Advantage: lower ceiling, easier to warm up - Disadvantage: no access to roof structure
Blue: insulate rafters and board. Advantage: access to roof structure (do I really need that) Disadvantage: Gables will also need to be insulated, more space to heat, trickier to realise.
In the end I want be able to use my garage when it's freezing outside. If the ceiling is not enough, I'll go on and do the walls and the shutters.
Thanks for your help!
As many others on this forum I'd like to go ahead and insulate my garage. However, I am going to use it as a DIY workshop - I do not intend to live in there. The garage is a double garage single skin brickwork and it's currently as cold/hot as the outside temperature.
I am not looking for 20°C and sitting down watching telly - I am just trying to be able to bring the temperature up to a reasonable level while I am there tinkering with my hobbies.
I know that insulation is kind of binary: either you do it fully or it's a waste of time. But I read somewhere that if I insulated the ceiling it would be a great improvement and maybe I can then move from there. Shutters are metal ones so those would require replacing as well and all the walls would need to be done - I'm just trying to see if I can obtain an acceptable result by doing the ceiling and seal gaps only.
Please see below a picture of the roof structure.
I was wondering what the best course of action would be. Celotex or similar between the rafters or just board the joists and put some celotex/rockwool in between? Boarding the joists seems the best idea as the ceiling level would be much lower and I guess the heat would fill up the room quickly.
As I may not be using the correct technical words, I've made a quick 3D sketch.
Green: boarding the joists and add rockwool/celotex. Advantage: lower ceiling, easier to warm up - Disadvantage: no access to roof structure
Blue: insulate rafters and board. Advantage: access to roof structure (do I really need that) Disadvantage: Gables will also need to be insulated, more space to heat, trickier to realise.
In the end I want be able to use my garage when it's freezing outside. If the ceiling is not enough, I'll go on and do the walls and the shutters.
Thanks for your help!