<p>The Watershed Roofing Kits from Swift are perfect for garden sheds, summerhouses or log cabins, providing a long-lasting roof for your outdoor buildings.</p> <p>Watershed Roofing Kits consist of corrugated roofing tiles, each one made from bituminous material 3mm thick and formed into the classic corrugated shape of a series of ridges and valleys. With tiles supplied already cut to size, installation is rapid since there is no measuring or cutting to do as there is...