Changing "elements" to "precipitation" would avoid any mistaken expectation that either heating or air conditioning is to be provided in outdoor areas, while still requiring a measure of protection from rain, snow, hail, and sleet.
(Changing "elements" to "precipitation"; would avoid; any mistaken expectation that either heating or air conditioning is to be provided in outdoor areas) (either heating or air conditioning; is; to be provided in outdoor areas) (either heating or air conditioning; to be provided; L:in outdoor areas)
Changing "elements" to "precipitation" either heating or air conditioning either heating or air conditioning
would avoid is to be provided
any mistaken expectation that either heating or air conditioning is to be provided in outdoor areas
to be provided in outdoor areas
L:in outdoor areas