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The average roof requires about 17 metal sheets, but that varies according to house size and roof style. Each roofing sheet takes about five minutes to measure and cut, though this depends on your level of experience. If your roof has a steep slope, gables, and skylights, for example, it may require extra sheets to account for waste. Roofs with a steep slope over 3:12 typically require more sheets because the pitch adds extra inches. How much exactly you will need depends on the height versus the width of the roof. If you are unsure of the calculations, check with a local roofing professional.

Since water heaters are primarily made of metal, they’re commonly accepted by scrap yards and collectors. Don’t expect to fetch a high price, though—water heaters are mostly steel and aluminum, which aren’t high-value metals. Some components are made of more valuable metals, like brass and copper, but they’re a small portion of the heater and won’t affect the price much.

Most projects take 1-4 weeks, depending on material sourcing, design intricacy, and required finishing treatments like powder coating or galvanization.

If you don’t want to rely on paint to change the color of your stainless steel surface, there are a few other methods, but they require specialized equipment and skills. Some examples include powder coating, applying pigmented powder via an electrostatic gun, and electrostatic painting, which uses wet paints and has a less durable finish. The cost of powder coating is $40 to $600 per part, and electrostatic painting averages $60 per hour.