Sedum Roof System Problems

Troubleshooting on green roofs summer 2013 was a challenging year for many sedum roofs.

Sedum roof system problems.

Sedum suffers few pest and disease problems as long as soil and foliage remain dry. It could be too. Problems arising from the dry summer. Moss is a sign that conditions on the roof are not quite right for sedum plants.

In the autumn the drains can be checked again and the spent flower heads and any weeds that have grown over the summer can be removed. Sedums are a brilliant choice for green roofing because they are drought tolerant and can withstand high temperatures but this summer was challenging even for such well adapted plants. Green roof problems and how to solve them grass on a sedum roof. The red colour indicates stress normally due to inadequate water over an extended period and happens when the plant switches off its chlorophyll it literally stops processing sunlight.

Although some species of sedum plants go a lovely deep red colour during the year most are green when healthy. For example aaron kang crosby at spore design says the company used a modular system by liveroof for this roof deck with sedum already grown in from a local nursery. In cool moist weather it s not unusual to see patches of grass growing amongst the sedum plants. In wet environments sedum crowns stems and leaves are susceptible to rot rust and mold diseases.