With extreme flexibility, lead, zinc, and copper can be stretched around awkward shapes and areas for complete coverage. In addition, their flexibility allows them to act as excellent sealants. All three are, also, highly durable which increases their longevity. Zinc and lead are corrosion and UV resistant and a zinc roof can last up to 100 years, saving money in the long run. As metals, they are able to expand and contract depending on the temperature so can adapt to the unpredictable British weather. Moreover, lead, zinc, and copper are all highly recyclable.