facades that could be grained from the conditions for virtual greening are in place . but the costs involved pose something of an obstacle. to make sure it's worth the investment the scientists are documented in the potential benefits of green facades for buildings. using a purpose built chamber they measure the relative advantages of the process for example could it which is heating costs i know so it's hard to speak with the. the greening system in itself has an insulating effect a combined effect of technology and substrates. because the plants grow outwards they keep the wind off the building and that means there's an additional insulating effect at home and it was attributed to him go. so getting more green into our