Temples in Kerala have a special architectural fashion (preserving exactly the same essence of Vastu), Primarily as a consequence of climatic differences Kerala have with other elements of India with more substantial rainfall. The temple roof is usually tiled and it is sloped as well as partitions are often square, https://www.tumblr.com/hanumanmandiradelaide/773459400352514048/the-significance-of-hindu-temples-in-preserving?source=share