First of all, I'm clueless when it comes to DIY so forgive my amateur lingo and general clueless attitude. I'm still learning, be patient with me.
My wife and I bought a house on the sunny island of Guernsey last year which as you may know don't come cheap. The house looked immaculate when viewing it but upon closer inspection there's a few oddities that cropped up.
One of the significant oddities was when I clambered up into the attic to find that it's open to the outside air. By this I mean at the bottom of the roof (where the guttering is) to the top of the external walls it is completely open. You can see outside. The gap isn't big at all, but the attic is very cold. A typical attic I know of is usually warm and closed to the open air.
Now I know nothing about this kind of thing, but I assumed this isn't normal nowadays at least? Should it be closed off? Would this help with heating the house?
Apologies for the awful explanation, perhaps someone could decipher what I'm talking about and apply some logic to this construction? I'm assuming there's a name for this kind of thing?