Increase the effectiveness of reduced heat absorption by having a shrub or a vine shade east and west walls. You can grow vines on masonry brick or concrete walls, but do not allow them to grow directly on walls with wood sidings. Provide a simple trellis for wooden sidings. Planning for Winter Sun Effective tree placement will allow the winter sun to warm the roof and walls of your house. The most important factor to consider in placing trees on the south side of your house is the use of deciduous tree species.
Deciduous trees lose their leaves in winter and allow the sun to warm houses.
Avoid using evergreen trees such as pine, American holly, magnolia, and cedar on the south side of your house. These trees remain green all year, shading the house from the warm winter sun. Houses on properties with a heavy cover of pine trees result in winter shade. Provide winter sun by removing pines that are too close to your house. You can use deciduous trees to provide needed shade for summer.