This new sleek aluminium micro-gutter has a dual purpose:
It eliminates the sometimes wavy appearance of the edges of the polycarbonate as it expands and contracts in changing weather
It redirects water collected from the skylight and moves it to the back of the uhut ready for collection in a water butt (with the addition of appropriate piping and a butt).
 
The gutter is riveted to the edge of the polycarbonate and can be installed during your hut build or at a later date for an additional cost.
 
This product is sold as a pair, one for each side of the ühut.