No person shall:
(a) Accumulate or store on residential premises, except in approved locations, any highly flammable or explosive matter, such as paints, volatile oils, cleaning fluids and similar materials or any combustible refuse liable to spontaneous combustion, such as waste paper, boxes, rags or similar materials; and
(b) Accumulate or store materials on fire escapes or stairs, in stairways or passageways, at doors or windows, or in any other locations where in the event of fire such materials may obstruct egress of occupants or interfere with fire-fighting operations.