Search results

AFAIK storm water drainage doesn't require a licensed plumber or drainer as it doesn't connect to the water supply system. So you can probably diy but check with whoever owns the stormwater system to confirm their requirements. My installation ran over ground to a grated drain.

My now retired chippy installed it along with the pergola and gutters/downpipe.

The roofing material specifications generally show the minimum pitch required. Polycarb sheet is laid at a slightlu steeper incline. Unlike galvanized roof sheeting you can't turn down the end of the sheet to prevent blow back so it cannot be installed almost flat (2?).