Building containment is typically not a specialized skill that many contractors have developed. While, technically, there is no wrong way to build containment, it needs to be constructed so that it accomplishes the main goal, to prevent cross contamination! But many contractors take shortcuts, and may not have the right materials or the skillset/knowledge to build quality, professional containments. At the end of the day, the containment built is a direct reflection of the professionalism of the contractor that built it. If it looks like a third-grader built it, what will the customer think about the quality of work being performed on the other side?
It is not just about taping some plastic over a door while moldy materials are being removed. Containments can serve different roles throughout the remediation process. They may serve as a barrier initially, to prevent contaminants from leaving the work zone. Once the remediation is completed, if there are remaining wet materials that require drying, it can serve as a drying chamber. Containments can be a courtesy for the customer to leave in place through reconstruction and serve as a dust barrier. The technician needs to think about the different purposes a containment may serve. Think big picture!