If you do not want any extra living space in your attic then you can install a low height roof but you will also have a small space to install the insulation and the ventilation system.
Insulating a gambrel roof room.
Because the gambrel roof doesn t go very high above the brickwork you can discover that you do not have enough living space in your attic.
How to vent a gambrel roof using reflectix.
If you have an existing house with this style then dense pack cellulose or pour in place open cell foam are your only options.
This is why careful planning is very important.
This should be a must see video for venting a gambrel r.
To insulate the roof you will need to use a combination of insulation to fully protect the roof.
Step 1 add a vapor barrier.