which type of rock makes good building material.give reason
1.There are many kinds of rocks which are good for building materials. Granite, marble, sandstone and limestone all can be used for building walls, but slate is only suitable for roofs and floors
2.Igneous rocks are good for building material because they are hard, strong and give a good finishing eg. Granite. Moreover they don’t get easily weathered by rain. Their strength and hardness can also be a drawback since it makes them harder to cut.
3.Sedimentary rocks are easier to cut while still being strong enough and they are also widely available. For centuries Sandstone has been used to build walls, a famous example is the Red Fort in India.
4.Metamorphic rocks are less used structurally because it breaks down when exposed to atmosphere, but slate is popular for roofing and flooring as it readily makes flat pieces and durable. Marble is also a good building material but since it is expensive therefore it is generally used in flooring.
2.Igneous rocks are good for building material because they are hard, strong and give a good finishing eg. Granite. Moreover they don’t get easily weathered by rain. Their strength and hardness can also be a drawback since it makes them harder to cut.
3.Sedimentary rocks are easier to cut while still being strong enough and they are also widely available. For centuries Sandstone has been used to build walls, a famous example is the Red Fort in India.
4.Metamorphic rocks are less used structurally because it breaks down when exposed to atmosphere, but slate is popular for roofing and flooring as it readily makes flat pieces and durable. Marble is also a good building material but since it is expensive therefore it is generally used in flooring.