Previously in our series on painting, we looked at set-up and interior painting tips, as well as exterior paint failure due to moisture. Although most homeowners will want to leave exterior painting to the professionals, we will discuss exterior painting work that DIYers can perform. At the least, gaining an understanding of exterior painting will benefit homeowners when they're making decisions about home maintenance and improvement.

Paint failure occurs for many reasons, but moisture is a common cause. It is important for a homeowner to not only notice moisture problems, but to hire a competent painting contractor who can identify their causes and make the necessary corrections. Moisture as a source of paint failure falls into three general categories: systemic moisture, structurally caused moisture, and moisture caused by human error.

In our last article on DIY painting basics, we discussed setting up an effective workspace and managing the workflow. We're now ready to work, and we'll discuss tips on preparation and finishing your interior painting project. Painting serves two purposes -- to beautify and to protect surfaces. Beautification takes a more prominent role in interior painting than in exterior, where protection is your higher concern. Proper surface preparation is equally important in achieving both purposes. Preparation is the most time-consuming and difficult aspect of any painting job, although it is also the most important. Proper preparation will produce a finish that will look great and last far longer than poor preparation will.

When I think about DIY painting basics, I think about process and procedure -- setting up an effective work space and job sequencing. I have been at this business for a long time, and I have seen and learned a lot. I have met homeowners of all competencies, each of whom seemed to lack this understanding of process and procedure. Throughout this series, we will look at interior and exterior application techniques, including tips and tricks. The goal is to help the DIYer produce a higher-quality result using fewer resources.