We wish to time installing new shingles on our house. To start* we will try to time driving one nail into a shingle. Assume that the shingle is already in place. You have squatted on your roof facing tire shingle. The hammer is on the roof next to the shingle. Hails are in your pocket. Use the Simplified MTM technique (Table 7-5) to determine the time of driving one nail into the shingle.
Table 7-5