Protecting your property from escape of water
According to Ecclesiastical claims data, escape of water is one of the largest causes of property insurance claims.
Living walls, often referred to as green walls or vertical gardens look beautiful and are a visual way to indicate that a building is sustainable.
Most living walls are constructed using bespoke carrier systems and the component parts can vary. For example, a system may use the rails which form part of a building's cladding, to support modular plant boxes. Other elements can include water-resistant backing layers, irrigation systems, drainage channels and of course, the growing medium and plants.
Like any cladding system, there will be a backing wall with insulation and the possibility of vertical voids through which a fire may spread. Even if the system has suitable cavity barriers installed, some components (including some types of growing medium) may be combustible and contribute to fire spread.
It is important to look at the whole wall build-up when considering the fire susceptibility of a living wall. Wherever possible, the backing wall, insulation and support systems should be of non-combustible material to limit the spread of fire as far as possible.
It’s clear from the number of new building specifications we see that contain green roofs or walls, that these building techniques are becoming more popular. The insurance industry has embraced the drive towards achieving Carbon Zero but there are concerns about the increased use of combustible materials in buildings and sustainability should not equal combustibility.
As an insurer, we would actively encourage you to involve your insurer in the planning stage for any new sustainability project. That way, we can work together to mitigate risks at the planning stage to achieve a modern sustainable building.