"I used this product to roof an area 5.2m x 3m spanning a space between two existing buildings. I found it very easy to cut using a fine metal cutting blade in my angle grinder (as recommended). However, I found that a wood drill rather than a masonry drill (which tended to slip) was better for drilling the holes. Lightweight to handle but sturdy and since installing, It has withstood some severe storms over the last few weeks. I would certainly recommend this for any DIY`er like myself. Only one negative - the screws supplied to fix the panels were,in my opinion, poor quality. Under pressure the slots got chewed up and I ended up using some standard countersunk screws of the same length which performed perfectly every time. I think that Vistalux should look into changing these screws and I think Screwfix should start stocking the ridges which I had to buy eslewhere!"