When deciding between various types of pool deck surfaces, you should consider how hot each gets in warm weather. For example, concrete is one deck surface that can burn your feet when it gets hot. Some of the surfaces that keep relatively cool in the heat are rubber, textured concrete, outdoor carpet and wood. Some types of textured concrete have a protective coating on top of them that make them cooler than traditional concrete. Outdoor carpet is another option that will always be comfortable to walk on when barefoot.