LiveRoof® brand engineered green soil is composed of approximately 94% high quality inorganic aggregates (by dry weight), contains a special clay particle to bind nutrients (in most regions), contains an acid rain buffering component (where appropriate), and is formulated with disease-suppressive organic material at a level that is consistent with ecologically sustainable soil/plant communities.
Our soil is designed to last indefinitely and to not substantially shrink over time. Cheap mixes with high levels of peat and compost will decompose and wash away as humic acid.
LiveRoof soils are formulated regionally by approved blenders. These local adaptations of LiveRoof engineered soil will vary somewhat in composition based upon climate, water quality, and regionally available components.