When you start any job there are a lot of things that must be done to make sure that you are properly prepared to get things going. This is especially true when you think about the fact that plastering is one of the more difficult things that you can undertake. This is not something that means you cannot do it but instead that you need to understand how it all works to make sure that nothing is going to go wrong.
The first part of any job that involves plastering is always the most important. When you skip over the first steps you will have a lot of problems down the road making it ever more difficult for you to go back and change the issue. Preparation for jobs that involve plastering can be time consuming but they are completely and totally necessary.
Removing the old plaster is ever so important when you are starting a new plastering job. There is so much that can go wrong when all of the plaster is not properly removed and that means the removal ranks right up there with the most important knowledge one can attain. The old plaster will be crumbling in most places. This is due to the fact that the older style of plaster was not nearly as hardy as the new plaster. The lack of adhesives that is very common in older plaster is from the fact that most of the early homes with plaster were never meant to stand for as long as they have. With this you get the plaster that has started to crack and create an unsightly look that is common in many of the older style buildings. As the plaster begins to crack it allows moisture to come in. Once the moisture has taken its place the cracks will widen as the plaster expands and crumbles even further then it was.
When you take to removing the old plaster lay down a large tarp in the area where the removal will take place. This will aid in the clean up that you will have once the plaster has been removed. Make sure that you are wearing some kind of protective breathing device. This will help as breathing plaster dust all day long will make certain that you end up with breathing problems. Remember that older plaster may contain chemicals that were not known to be dangerous in the time it was first put up but are now known to be toxic. Always protect yourself from breathing in this dust or allowing for prolonged exposure to the skin.
Make certain that you are using the right tool for the job. A small weight hammer is best to break up the existing plaster into more manageable pieces and a scrapper (make sure it is strong metal variety) is the best to remove the remaining pieces. Be careful to not damage the board beneath the plaster or you will run into more expense then you have anticipated.