2 results for non penetrating roof mount nprm 28 found in 0.000 seconds

Non Penetrating Roof Mounts NPRM-8 260 1. Ballast requirements are ... Engineering Report 870101 dated July 28, 1988 for test data used to generate the ... vertex of the antenna on a 54 inch long mounting pipe on a flat supporting surface. ... . The effective weight of the gravity mount and antenna may be deducted from the ... . The effective weight of the gravity mount and antenna may be calculated by ... from the actual weight of the gravity mount and antenna. (Worst case uplift wind ... elevation angle). 4. The zero velocity roof loads shown are equal to the ballast ... by the perimeters of the gravity mounts (i.e. an area greater than the ballast ... pan contact area). If effective gravity mount and antenna weights are considered when ... weight requirements, the zero velocity roof loads will be higher than those ...

Non Penetrating Roof Mounts NPRM-28 280 ...