How to remove a plant from the house wall?

I have been facing the issue of unwanted plants growing on the walls of my property. A friend of mine suggested some steps to get rid of them. Here is what he suggested about how to remove plants growing on walls. 

How to Remove Plant Roots from Wall?

My friend suggested me three methods which are

• Pouring boiling water over the cracks to kill weeds safely.

• Spray a salt and dish soap solution on the weeds to kill them.

• Apply a Borax solution to remove unwanted weeds from cracks.

Since, pouring boiling water is the easiest, I always follow this method. Hopefully this information about how to remove plants growing on walls will be of help to you.