Roofers are specially designed lids for jugs, thermos and teapot with the purpose of making liquid pouring an easy experience. When we pour from a regular spout the liquid tends to drip and settle around the spout opening, resulting in limescale formation. The graceful redesign solves the issue plus keeps the bottle completely covered.
This is how it works, “The ‘roof’ has no opening, so protects the contents, while the curve pushes the liquid back into the vessel after pouring, which prevents any drips forming.”
Designer: Shota Aoyagi