Sponge City Mats is a way to retrofit existing rooftops to facilitate natural evaporative cooling effect. Sponge City Mats absorb and keep rainwater imitating natural environment where water is soaked up by soil and vegetation.
We all experienced how cities can be scorching hot at summer, becoming much warmer then surrounding rural areas. This phenomenon occurs in part due to unnatural way how cities manage rainwater.
In the nature, rainwater is absorbed by soil and vegetation, and when temperature rises, water evaporates producing natural cooling effect.
Unlike in natural environments, rainwater in the cities is historically dumped into pipes and drainage system breaking natural cycle and cooling.
Sponge mats are aimed to restore natural processes by absorbing rainwater and allowing it to evaporate when temperature raises.
Sponge mats is the viable alternative to reflective white roofs and green roofs.
White roofs are found to be effective in reflecting sunlight and cool down the surface of the roof. Sponge mats when painted with reflective white coating provide the same benefits, and besides that, leverage evaporative cooling effect.
Green roofs, roofs with soil and vegetation, provide benefits of natural cooling but entails high installation and maintenance cost and can be inefficient in water deprived regions.
Sponge mats leverage benefits of both white and green roofs and is cost-efficient and low-maintenance solution.
Sponge mats are produced of 99% percent on recycled Nike Grind materials.
Sponge mats leverages inherent properties on Nike Grind materials to absorb and keep water and requires close to zero energy consumption to build.