Block Gutter Downpipe ~upd~ -

: In some cases, entire root systems can take hold inside a downpipe, thriving on the slow trickle of water.

| Cause | Why It Happens | |-------|----------------| | | Form a wet, compacted mat inside the pipe. | | Moss | Grows in gutters, then slides down and hardens. | | Bird nests | Birds build inside the pipe’s top opening. | | Sports balls / toys | Children’s items can lodge in the pipe. | | Sediment / roof grit | Especially from old concrete or slate roofs. | | Ice (cold climates) | Freezing water expands and blocks flow. | block gutter downpipe