. Commonly used in roof insulation, cooling measures are those?

A, roof insulation cooling usually have the following ways.

1, ventilated heat insulation roof, ventilated heat insulation roof is set up in the roof of the ventilated air layer, so that the upper surface of the roof to shield the role of the sun, and the middle of the air layer of the principle of wind pressure and heat pressure principle to emit a large part of the heat, which reduces the temperature to the lower surface of the roof, to achieve the purpose of heat insulation and cooling.

Ventilated heat-insulated roof according to the relative position of the structural layer and through the phoenix layer can be divided into two kinds of different:

2, overhead ventilated heat-insulated roof this heat-insulated roof general practice is to use prefabricated panels shelved in the waterproofing layer to form an overhead layer. Overhead ventilation insulated roof overhead should be appropriate net height, generally 180-240 mm is appropriate, overhead perimeter should be set up a certain number of ventilation holes to ensure air circulation. When the daughter wall is not suitable for opening ventilation holes, should be 250mm from the daughter wall within the scope of not paving the overhead board.

Second, the main methods of roof insulation and cooling: roof insulation, sunscreen insulation materials, insulated roof, ventilated roof, overhead insulation roof.

Extended information:

< p>The roof of a building is the part of the building envelope that is most affected by outdoor heat effects, especially in hot summer and cold winter regions. The most important characteristic of hot summer and cold winter area is that summer time is long, hot and humid; winter time is short, cold and wet.

Therefore, the roof of the region should be both summer thermal insulation, but also to take into account the winter heat preservation. The main practices used for building roof insulation are single-layer ventilated roofs, water storage planting roofs and vegetated roofs, and double-sided layer ventilated roofs.?

Single-layer ventilated roof can reduce the temperature, but the rate of reduction is too small, the thermal insulation effect is not ideal; double-sided layer ventilated roof is the practice of light-colored treatment of the external surface, double interlayer ventilation and grass-roots thermal insulation measures, better than the single-layer ventilated roof thermal insulation, but this practice only takes into account the thermal insulation and does not have good waterproofing;

Water-retention planting roof is the use of aquatic suspended plants to shield the sunlight radiation, reflection and absorption, and the roof is the main practice of the roof insulation. Shading sunlight radiation, reflecting and absorbing solar radiation heat and evaporation of water storage to improve the thermal insulation effect, while planting the roof is covered with soil or vermiculite on the roof, on top of the plant planted dense leaves, plant shading, mulch insulation heat preservation.

Baidu Encyclopedia-Roof Insulation