Material composition of the roof is extremely important. I don’t have any experience with galvanized tin (which is most metal roofs AFAIK), but it isn’t on allowable materials lists for any CO2 or fiber lasers that I’m aware of. However, if they were steel roofs (just an example- not aware of anyone using steel for roofing), a blue-spectrum laser of sizable wattage would cut through it like a hot knife through butter.
That said, painting the roof a color that matches the wavelength of the beam itself would do more than nothing to reflect the energy. It wouldn’t be a perfect reflector, but it could substantially help compensate the energy that gets absorbed by the roof material.
Edit to add: material composition of the paint itself would also be an important factor.
Material composition of the roof is extremely important. I don’t have any experience with galvanized tin (which is most metal roofs AFAIK), but it isn’t on allowable materials lists for any CO2 or fiber lasers that I’m aware of. However, if they were steel roofs (just an example- not aware of anyone using steel for roofing), a blue-spectrum laser would cut through it like a hot knife through butter.
That said, painting the roof a color that matches the wavelength of the beam itself would do more than nothing to reflect the energy. It wouldn’t be a perfect reflector, but it could substantially help compensate the energy that gets absorbed by the roof material.
Edit to add: material composition of the paint itself would also be an important factor.
Material composition of the roof is extremely important. I don’t have any experience with galvanized tin (which is most metal roofs AFAIK), but it isn’t on allowable materials lists for any CO2 or fiber lasers that I’m aware of. However, if they were steel roofs (just an example- not aware of anyone using steel for roofing), a blue-spectrum laser would cut through it like a hot knife through butter.
That said, painting the roof a color that matches the wavelength of the beam itself would do more than nothing to reflect the energy. It wouldn’t be a perfect reflector, but it could substantially help compensate the energy that gets absorbed by the roof material.