Hate to say it to you....but if englands climate is like NS they do not need it. We get have humid air because we live not far from the bay... Take a look at the Chantecler that was devloped to stand Canada's climate (more so quebec region) and it is not this Huge fluffly bird. It is a relitivly tight feather bird.
I evney the people out west... Because they have DRY snow. We have really damp and heavy snow.... That's fun to shovel
It's a "grass is always greener" issue - those of us out West with dry snow have dry everything. Drought is a serious problem. I lived in NY near Lake Ontario for my first 38 years, and having experienced both climates, I'll take the West for its nearly daily dose of sunshine, but it has definite drawbacks. A chicken probably prefers the dryness though

A Chantecler may not need the volume of feather because of the type of feather it has.