A metal roof won't dry out, split, curl, peel or flake like conventional roofing products like Asphalt Shingles. Metal roofing has been successfully used for centuries and they last substantially longer than any other roofing product on the market.
They are shingles that are thicker than the regular 3-tab shingles, so they stand out better on the roof and create a nicer look. The 'dim' stands for dimensional, as an additional dimension to a flat tabbed shingle.
They will stand up to the elements better and are better ant preventing fires. If for some reason someone was walking on the roof then the wood would be more durable.
Shingles are more energy efficient than metal roofing. Metal roofing has no insulating properties so you would need extra insulation to make up for it. Plus they get hotter in the Summer.
A metal roof typically lasts longer than other roofing materials, with an average lifespan of 40-70 years compared to 20-30 years for asphalt shingles.
Perhaps, but not guaranteed. Tile is generally much heavier than asphalt or "composition" shingles. If you're concerned, have a roofing contractor to evaluate your roof.
Usually not more than two.
If you have more than two layers of shingles you should strip them. If not use 1x3 or 2x4 strapping and run it horizontally (eve to eve) every 16 inches and then put your metal on that.
Metal roofs cost more than shingled roofs. You can expect to pay 30 percent more for a metal roof, compared shingle roof. Metal roofing can withstand higher mile per hour winds, treacherous weather even fire. Metal roofs cost more in the beginning than a shingled roof but actually save money on homeowners insurance.
If the roof is less than 24 years old,you can re -shingle over the old shingles. But if the roof is over 35 years old it is best to remove the exiting shingles ans replace with new
Dark shingles will usually create more heat in the attic then a lighter color. Something black gets hotter then something white.
Depending on your location, if the metal roof is going to be more durable and sturdier than your existing roof, you will need a permit. Also if the metal roof is going to heavier than your existing roof, it will require a permit.
Metal roofs typically last longer than other roofing materials, with an average lifespan of 40-70 years compared to 20-30 years for asphalt shingles.