Rhododendrons do like a position with plenty of air but are not happy if they are exposed to wind all of the time. Draughts and permanent breezes from a north-easterly direction are very bad for rhododendrons. Such conditions will dry out the shrubs and cause the lower parts of the branches to become bare. Sharp winds in winter are particularly bad as then frozen soil may prevent the roots from drawing in moisture and the plant is desiccated.
Dense planting of deciduous trees or conifers, a high hedge or house walls and solid fences will provide the best protection from wind.
Corners of houses, spaces between buildings and unprotected areas, particularly on south or west-facing slopes, are often too draughty and should be avoided. If rhododendrons have already been planted there, consider transplanting them!