Source google image: http://www.butterflyloungeneath.com/wp-content/uploads/2018/04/dalle-gravillonnee-castorama-dalle-beton-gravillonne-50×50-cool-terrasse-dalle-beton-plot-616-x-411-pixels.jpg
Toiture terrasse gravillonnée
Source google image: http://www.butterflyloungeneath.com/wp-content/uploads/2018/04/dalle-gravillonnee-castorama-dalle-beton-gravillonne-50×50-cool-terrasse-dalle-beton-plot-616-x-411-pixels.jpg