GREENHOUSE INSULATION AGAINST LOSSES BY TERRESTRIAL THERMAL CONDUCTION

The invention relates to a greenhouse insulation which provides a thermal insulation of the soil useful for growing plants. According to the invention, the insulation comprises a layered structure (1), with low thermal conduction in the greenhouse foundation, between the crust of the earth and the growing soil there being placed some textile nets (2 and 5), for resisting to folding and breaking, a thick layer (4), made of cellular material, with very low thermal conduction and some horizontal leveling and compacting layers (3 and 6), from place to place there being located some vertical tubes (10) for discharging the excessive water, each provided with a water permeable area (b), comprising sand and gravel for allowing the adaptation on a large surface of contact and water infiltration into the local earth soil, and for heating the growing soil, there being mounted some pipes (8) placed above the structure (1) through which there circulates a heating agent.