Answer / Prabodh Kumar

To calculate the number of rods required for a roof slab, you would first need to determine the area of the slab, then convert it into cubic feet (for concrete volume calculations), and finally find out the amount of steel rods needed based on the recommended rod-to-concrete ratio. As for weights, it is best to consult a structural engineer or construction professional, as this calculation involves complex factors such as material densities and stresses.

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