Modern green roofs, like a living thatch
There should be hi-tech 21st-century versions of the traditional turf roofs still found in parts of Scandinavia.
A green roof is one covered with a thin layer of growing material which, in turn, supports a range of low-maintenance plants such as stonecrop and moss
They’re good for insects and birds, they soak up between 50 and 80 per cent of the rainwater that falls on them, and they provide natural insulation. Better than a thatched roof but ideal for village houses.
Not a new idea but they are doable, even though they aren’t cheap.
Wish I could have one, and btw the myth that they leak is a myth. See this article.
Easy, just buy a stack of the modular trays and attach them. Buy them here… https://www.roofingsuperstore.co.uk/product/wallbarn-m-tray-modular-sedum-wildflower-green-roof-540mm-x-540mm.html
I like the idea but would test it on a shed first. This article gives the low-down on the pitfalls.