Reduce consumption of drinking water for non-drinking purposes

Install to collect rain water from the roof and gutters

Decrease of overall water consumption (10% minimum) or % of non-potable use provided by collected water (20% minimum)

Opaque, not letting light through

Estimated pay back time short term : 2-4 years, medium term: 4-6 years, long term : 6-8 years (*)

Short term