Roof and gutter downpipes connect directly to roadside gutters, stormwater drains and into our natural ecosystems. This means that wastewater run-off from roof cleaning causes pollutants, like oxides, algae, paint flakes, concrete and sediment to enter natural ecosystems.
By taking some simple precautions when cleaning and restoring roofs, you protect our natural environment:
disconnect downpipes and redirect wastewater to the garden or a holding tank for disposal by a licensed liquid waste disposal contractor
if disconnecting downpipes is not feasible, block the downpipe when cleaning – feed the wastewater onto lawns or gardens
a hole may be drilled in the house gutter, downpipes blocked and water diverted to garden beds. You can plug the hole with a grommet when cleaning is finished
protect stormwater drains using sandbags or a portable bund (a barrier to contain water) in the roadside gutter:
remove captured wastewater using a vacuum or bilge pump to direct to lawns or gardens, making sure no wastewater flows into the stormwater drain
always keep a spill response kit handy, including a shovel, broom and rags, to clean-up residues
do not wash or hose remaining waste materials down the stormwater drain.