Determining The Types Of Tiles Based On Building Location And Building Elevation Using Fuzzy Weighted Product (WP) Methods Sayyidah 1 , Nurul Huda Maksum 2 , Sarmiatul Hasanah 3 , Tony Yulianto 4 {sayydhaams@gmail.com 1 , nurulhuda@gmail.com 2 , sarmiatulhasanah@gmail.com 3 } 1,2,3,4 Mathematics Department, Mathemathics and Science Faculty, Islamic University of Madura, Pamekasan, Madura, Indonesia Abstract. Tile is one of the basic ingredients in making roofs of houses or other buildings that are widely used by the people of Indonesia. The types of tile have several types so that the determination is determined based on the location of the building and the height of the building that is different, so that from this case the fuzzy weighted product method is applied to determine the type of tile. Data taken from 40 tile buyers was carried out by direct observation of tile makers, where there were types of clay tiles including plentong tile, manthili tile, garuda tile, frog tile. The criteria used are the location of the building, building height and temperature. The results of the highest ranking of vector V are found in the second alternative, namely manthili tile with a building location of 170.5 m / above sea level, building height of 7.712 cm and temperature / weather of 27.99 ℃. Keywords: Tile, fuzzy, weighted product, ranking. 1. Introduction Tile is one of the basic ingredients in making roofs or other buildings that are widely used by Indonesian people. The demand for tile continues to increase along with the number of people who want to build and rehabilitate their homes. For this reason, making tile can be a promising business opportunity [1]. Tile is the main part of a building as a roof covering the house. The main function of the tile is to resist the heat of the sun and the splash of rain. Types of tile vary, there are concrete roof tiles, clay tiles, ceramic tiles, zinc tile, and wood tile (shingle), but in this study we will study the type of clay tile because of the superiority of clay tiles in addition to cheap materials that can withstand all weather and lighter than concrete tile. While the weakness of this tile can break because of falling objects or receiving a large pressure load exceeding its capacity. The quality of the tile is very determined from the material and combustion temperature, because it will determine the water absorbency and the power of tile pressure, therefore efforts to improve the quality and quality of tile from clay continue to be pursued along with the exit of various roofs for example: asbestos, zinc, tile print from large industries and others [2]. In this study to be able to produce a good tile can be seen in the location of the building and the height of the building. So to determine the type of tile on the location of the building affects the type of tile because the location of the building is higher in the air temperature than the lowlands and the rainfall that is taking place is also quite high so it requires a type of tile that is strong, thick, and has sufficient combustion temperature . Whereas in the lowlands the air temperature is lower and the rainfall that takes place is quite low so it requires a type of tile ACHITS 2019, July 30-31, Surabaya, Indonesia Copyright © 2019 EAI DOI 10.4108/eai.30-7-2019.2287556