Dear friends, if you are planning to improve/renovate or refurnish your home then this article can be a very useful guide and save your lot of time. When it comes to home improvement, most people think that it's has to do with painting the house from inside out and forget about it. But any architectural structure is much more than just walls and ceiling. There are many systems working simultaneously which keep the building under function. Let's have a look at these systems one by one. 1) St.