The Danger of Creeper Plants Growing Against Your House
A while back, I inspected a house in an older part of Johannesburg. From the road, the house was very pretty with an ivy creeper growing on the house and boundary walls. However, having plants winding their way up your outside walls can cause actual damage to your house. Therefore, you should think twice before allowing creepers to grow on any wall in the first place.
In fact, the best advice is not to have any gardens within 1 metre of your home! Watering gardens against your home can cause uneven settlement of the foundation and cracks in your house.
The worst plants to plant against your house are destructive plants known as “self-clingers”.
Self-clinger creeper’s rootlets go into existing fine cracks and fissures, using them to enhance adhesion and occasionally penetrating the interiors of buildings through them. The mortar between bricks can be loosened through this activity and is often torn away from the wall when a creeper is removed. The same strong adhesion can result in chunks of plasterwork being pulled away, and attached to the creeper vines.
In addition, on roof structures, creeper tendrils and rootlets can work their way under roof tiles and other roofing materials. Unless you remove the creeper maintenance, like painting and roof repairs, is impossible.
Moreover, any plants and shrubs with their foliage against your home may even dislodge gutters and roof tiles and can hold damaging moisture against wall surfaces causing moisture to penetrate into the wall and roof structure of your home.
Some articles and posts claim not all climbing plants are bad for your house and some can provide “genuine benefits”. However, the detrimental effect of having these climbers on your walls far outweighs any benefits they may have. Moreover, some climbing plants are very aggressive in the way they attach themselves to your walls and, if left unchecked, can cause serious structural problems.
Which creepers to avoid?
Ivy is a prime example. The sort of plants to avoid having grown up on your wall is often the ones that have “suckers” or little mini branches like spikes, that burrow under the paint into the plastered walls and into the mortar joints of the face brick walls for a foothold.Continue reading “Plants Growing against Your House.”