In recent years we have seen a preference of Sloping Roof laid with Clay Tiles in Kerala. This has been the style of roofing we had throughout our Architectural History. But, during the late 1970s, with the advent of concrete roofing, many houses were constructed with Flat roofs, which, as years passed, was found to be ill-suited for Kerala Climatic condition due to the following reasons-
- Being Perpendicular to the Mid-Noon Sun Rays, heat easily penetrated into the house making the interiors very hot.
- Flat roofs made it difficult for Rain water to easily drain away from the roof, causing stagnant water that caused the concrete to weather and corrode.
The most essential feature of any roof is dependability, since it must keep the weather out and keep the inside of your home comfortable through every season. A good roof should also provide a barrier against fire, protect the inside of your home from excess heat and provide aesthetic appeal.
New Roofing Materials:
Nowadays, we see materials other than Cocrete & Terracotta tiles used for constructing the Roof. One of the innovative entrants is the Aluminium Composite roof which has many advanced properties like superior Heat Insulation, Durability and comes in various Glossy finishes. It is advantageous in terms of sustainability, particularly because it contains a large portion of recycled material and can be recycled indefinitely.
Steel, copper, and aluminum roofing are durable materials, fireproof, and lightweight, making them an especially good choice in fire prone areas and in earthquake zones where heavy roofs are a liability.
Here are some "green" considerations for commonly used roofing materials:
- Durability: The longer it lasts, the less waste.
- Weight: Heavier materials require a stronger underlying structure, which usually means increased use of resources.
- Rainwater collection: Is the rainwater safe to use?
- Manufacturing: Does the roofing manufacturer use green practices and materials to produce the roofing products?
- Recycling: Can the material be reused or recycled after its lifespan is over?
The color of the roof:
It should be no surprise that a light colored roof reflects heat and a dark roof absorbs it. Light colored roofs are roofing materials that have a high solar reflectance rate and thus help to reduce outdoor temperatures and reduce heat transferred into a house. If you live in a heating-dominated climate outside of the city, dark roofs may be the way to go since they will capture more of the sun's energy during cold weather. So, it is advisable to use light colored roofs in Kerala's hot coastal plains and dark colored roofs in the cold hilly regions.