Hi, This is a coop I've built for some quail but it's a first attempt before I build one (with nest boxes) for some chickens I plan to get. I've got the stage where all I need to do is put the roof on and add the walls and floor to the coop area. The plan is to nail plywood to the inside of the coop area frame (back of photo) to create a sealed box, with the joints finished with silicone sealant to reduce the risk of red mite. The outer will then be clad in shiplap. So, do I need/is it worth insulating the gap between the two? I live in the UK and while it's not that cold the winter is usually consistently below freezing for a while, especially at night. Would any insulation and any gap between the ply and cladding be a potential haven for red mite? The roof will have plywood board also then clad in shiplap. Should I nail the board to the inside of the roof trusses or on the outside which is easier? Does putting it inside make it easier to clean, reduce the risk of mites etc? (I'm leaving a one inch gap at the top of the roof for ventilation and then adding an elevated ridge beam late to screen the gap from rain and wind). Finally, the front of the coop will be ply with a door hole and I'm yet to decide how to add cladding but again will any space between the ply and the cladding be a potential haven for mites? Loads of questions I know but this is my first time with birds of any sort so any advice would be great.