Why is aluminium good for roofing?
Answer:
Aluminum is an excellent choice if a material has to be lightweight and weather resistant. Aluminum is the lightest metal routinely used in construction and will not rust or corrode like iron or copper. It is not as strong as steel, which also resists rust, but roofing relies on durability, not mechanical strength. The fact aluminum is lightweight is an added benefit. The only disadvantage is that aluminum is more expensive than iron. This is why most metal roofing is corrugated, galvinized iron sheet.
FYI: I believe a company called "Lexar" constructed houses entirely out of enameled sheet steel just after WWII. This is the white body material most appliances like ovens and washing machines are made from. The homes were manufactured in sections and assembled with nuts and bolts. They were fire - proof, earthquake - proof and never needed roofing or painting. Unfortunately this was an era when the government controlled much of private industry and, refusing governmental regulation, Lexar was put out of business by a combination of negative advertising and dirty politics.
it is light and strong, and is easily shaped.
Because the elements can't decay or mold up in aluminum...also if it is a slanted roof, as most are, snow, water, and leaves will slide right off, in most cases. And if you get hard up for cash, you can cut off a chunk of your roof and take it to the recycler!! HaHaHaHaHaHaHa
zinc is better.and tin also
Never knew that it was! I cannot ever remember seeing an Aluminium roof.
I know of:-
Tiles, slate, felt shingles, wood shingles, perspex sheets, poly carbonate sheets, asbestos sheets, corrugated iron and concrete, copper, zinc and lead but not Aluminium.
Could you please direct me, via the comments box, to a aluminum roof.
Aluminum metal roofing is strong, light-weight, rust-resistant, and attractive.
Pure aluminium is an extremely reactive metal, but the first thing it bonds with upon being in open air is oxygen. This forms a layer of aluminium oxide ("alumina") which is extremely thin and strong. It's inert and does not react with water, and this protects the aluminium.
Aluminium is also very strong and light (making it easy to lift all the way up on top of a roof), and it's quite common and cheap -- it's the second most produced metal in the world, after steel.
If you've ever seen a cheap shelter or shed with a metal roof (and the metal is still bare and not corroded), chances are it's aluminium, though other metals can also work well.
because aluminium easily forms an oxide layer that is not readily corroded or rusted. the oxide layer is very unreactive
it also heats and cools fast remember that
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