Paper wasps hang their comb nests from twigs and branches of trees and shrubs. If a nest is disturbed, there is high probability that the wasp will sting. While not an aggressive species by nature, paper wasps will attack if their nest is threatened. Wasp stings are painful and can cause the same risk of allergic reaction as other insect stings.
Paper wasps also like to hang their comb nests from porch ceilings, the top member of window and door frames, soffits, eaves, attic rafters, deck floor joists and railings. Normally they will make nests in any area that is protected from the weather.