The glass fiber reinforced asphalt shingles are of various shapes and rich colors. What's the difference between seemingly identical tiles?The colored sand on the tile surface is very particular.High quality colored sand can effectively improve the waterproof performance of asphalt tiles and slow down the speed of water entering the tiles. In addition, asphalt shingles will have the problem of color fading. In fact, there are two kinds of colored sand. One kind of colored sand is the high-temperature sintered ceramic colored sand selected by Jingda, which is made of high temperature porcelain baked at 1200 C. The special shading process foundation makes asphalt shingles durable and color has a sense of quality; The other is dyed sand, which is low in cost. Although this type of asphalt tile looks brighter, it will show its true shape once washed by rain. Therefore, the quality of tiles is the long-term way to buy. Don't regret it because it is cheap for a while!