HOW ROOFING CONTRACTOR CAN SAVE YOU TIME, STRESS, AND MONEY.

For your back D-ring height, the distance in between the D-ring and the only in the worker's footwear, employers often use five ft because the standard height with the assumption that the worker is going to be 6 feet in height, but since the D-ring height variability can affect the safety of the program, the again D-ring height have to be calculate