You will discover distinct pros and cons to using each sort of roofing system for your personal property, however, let's get started with a well-kept secret, the one which will give you a quick understanding regarding the plethora of roof solutions:
The slope in the roof delivers a distinct indication as to how hi-tech the roofing is. An incredibly low slope indicates a hi-tech roof, along with a high slope a low-tech roof.
To be aware of this theory, allow us to start with one of the low-tech roofing systems: a thatch roof. Thatch roofs in the vast majority of countries will have a slope of 45 degrees or thereabouts. It is on the grounds they aren't very watertight. However, these are rather thick, frequently 400mm (16") or thereabouts. Therefore the high slope forces the water to run off before it seeps with the thickness of your thatch, a minimal-tech solution.
Conversely, a higher tech system including low-slope "kliplock" corrugated metal sheeting may be installed at slopes of 1 degree or less, since it is perfectly water-tight.
Besides being watertight, a roof must perform many other functions: it requires to support snow, needs to be great looking, will need to have a lengthy lasting abrasion-resistant finish, should never in hot climates, and must retain heat in cold climates.
Thatch Roofs: are amongst the oldest roofing systems created by man, and they are still applied in millions of structures worldwide. Created from dried plant stems, a thatch roof will typically have a slope of 45 degrees and thickness of 400mm (16"). This thickness comprises of many layers of individual plant fibres. When water falls onto a thatch roof, it will eventually trickle from layer to layer as gravity brings it downwards. And so the thickness basically generates ample layers to the water drops to transfer horizontally away from structure before they enter into a room. The steep slope serves to boost the speed in the drops, to make sure they quickly move out of the structure before dropping inside. Which means that this number of roof is incredibly distinct off their roofs, simply because it doesn't possess a waterproof skin.
Slate or Stone Roofs: stone isn't the best material for roofs, as it is heavy. Slate is actually a naturally sourced kind of stone which splits into thin layers in case you strike it with a chisel in just the correct way. This generates thin, watertight tiles that can be overlapped in order to create a roof. Since the stone tiles aren't the very same size and thickness, this isn't a real system that is definitely highly waterproof. Therefore it needs a very good slope, of say twenty to thirty degrees, to make the liquid to operate away from the roof and not seep via the cracks.
Wood Shingle Roofs: wooden shingles are lightweight and readily replaceable, and were utilized widely in many parts of the world.
Metal Roofing Systems: metal roofing systems are hugely popular in modern day constructions. These are utilized in just about any industrial and airport terminal building and may also be used in domestic and academic buildings. They are to have an extremely lightweight, robust, economical, and waterproof roof, and can be found in an incredibly wide range of varieties. Frequently used metals are mild steel, aluminum, and steel. Steel roofing sheets really need to be shielded from corrosion, and so are usually galvanized or engrossed in other protective layers. The sheets are particularly thin, around .5mm in the event of steel, and 1mm in aluminum. Therefore, they might require insulation and extra layers to become incorporated into your roof.