Replaced ageing concrete tiles with Metrotile https://www.metrotile.co.uk Shingle on our detached house. The weight difference when handling the tiles is remarkable. Our roofer had worked with Metrotile before and confirmed they're genuinely quicker to lay than traditional options. Chosen charcoal finish which suits our property well. Six months in — no issues whatsoever, roof looks great and we're clearly not going to be re-roofing again anytime soon given that guarantee.