Types of Roofing
Metal Roofing is becoming more and more popular in Kerala during the last three decades. Metal Roofing is extremely energy efficient. In our climate especially in the extreme heat in the summer it will prevent heat to reduce the cooling cost and help us to save electricity.
Steel, used for most Metal Roofing is heavier and sturdier than Aluminium. Manufacturers have settled on a number of durable coatings and finishes that protect steel from rust and corrosion.Steel is usually zinc coated for corrosion protection and then sealed. A coating of epoxy primer offers adhesion and baked on acrylic top coating adds colour and protection.Aluminium
Aluminium is extemely light weight and used for residential metal roofing. It won't rust.but it must be painted or coated for appearence.Coatings are similar to those used on steel.Various brands like ORALIUM, HINDALCO and JINDAL are the leading aluminium roofing sheet sellers in Kerala. Aluminium roofing is little expensive compare to the steel.
Manglore Tiles or Clay tiles are produced by baking moulded clay. The density of the clay is determined by the length of time and temperature at which it is heated. The most commonly used clay colour is the TERRA-COTTA. Another alternative to these natural earth tones is to add enamels to the tiles and make any colour of the roof tiles. Because clay tiles are made from a natural earth derived material, which are environment friendly and easliy recycled. Clay tiles are available at various sizes and weights from 1KGs to 2KGs per square feet.
Roofing with Concrete Tiles
Concrete tiles are made of mixture of sand, cememnt and water which are moulded under heat and high pressure. The exposed surface of a tile may be finished with a paint like material. Concrete tiles comes in three main appearences.
1) Flat Profile : - no curves.
2) Low Profile : - Small curves and has a rise to width ratio equal to 1:5 or less.
3) High Profile : - Large curves and has a rise to width ratio greater than 1:5.
Concrete tiles can stimulate the appearence of traditional clay tiles, slate and stone. Concrete tiles are resistant to hail,wind and fire and thus making them very safe roofing material when properly installed. Concrete tiles weighs around 3 to 4.5 Kilograms per square feet.
Ceramic tiles are also making from pure clays, feldspars, sand, carbonates and Kaolins.They are baked in the kiln around 2000 degree celsius. The ceramic tiles have the lowest water absorbtion rate and will last more than 30 years. We can still see beautiful ceramic roofs on many buildings in Europe, which have been for centuries. They are very easy to clean because of the ceramic roofing tile have a glazed portion. Their colour will not fade and peel. Ceramic tiles are availabe at different styles, finishes and in variety of colours.They offer many great benefit including the durability,longevity, greatcurb appeal, low maintenance and safety. The ceramic finishes offered by many ceramic roof tile manufactures are baked in high temperature creating a non porous finish that will virtually last forever.
Types of Ceramic tiles
1. Flat tiles
Truss Roofing with Shingles
Roofing with Shingles ( laminated roofing) Organic-based asphalt shingles are manufactured with a base ( also termed mat or substrate) made of various cellulose fibres such as recycled waste paper and wood fibres.This organic base is then saturated with specially formulated asphalt coating and surfaced with weather resistant mineral granules.Shingles are made of various materials such as wood , slate, flagstone, fibre cement , metal plastic and composite material such as asphalt shingles.Roof Shingles are commonly used in United States and Euorope.
Polycarbonates are a group of thermoplastic polymers containing carbonate groups in their chemical structures. In polycarbonate some grades are optically transparent. They are easily worked, moulded and thermoformed. Most commonly using types of polycarbonate sheets are multiwall and solid types. They are available in different sizes and colours.