Book updated October 2020. In VA, Qualified Individuals for the roofing specialty, in addition to the experience requirements, must successfully complete a technical examination that has been approved by the Board for Contractors. Most technical questions are based on the NRCA/VOSH recommendations. We create these supplemental self-practice test questions module referencing the principles and concepts currently valid in the corresponding trade. Each question comes with an answer and a short explanation which aids you in seeking further study information. These questions are intended as supplementary study material for fundamental knowledge establishment. They are NOT actual past-paper questions. You should use this product together with other study resources for the best possible exam prep coverage.