“ roof flower watering, will not cause the roof Water Leakage? ” this is the most worried about a penthouse residents.
Roof greening actually protects the top of buildings, extending the service life of the roof building materials. “ if the roof of a waterproof 5 years, then do the roof greening can increase 10 times, that is, 50 years.
Because plastic products are widely used in before building waterproof material, its predators are UV, temperature difference between day and night formation of thermal expansion and contraction, resulting in the material becomes brittle hard, fission of leakage, so 3 years 5 years to change.
“ it is well known that white plastic (white pollution), buried underground for 100 years without degradation, waterproof material made the roof green after it is fully covered, equivalent to the underground, so that UV irradiation is not, so its life is greatly extended.
It is understood that the roof greening planting soil can block ultraviolet radiation to direct radiation of roof waterproof layer, the absorption of solar radiation heat, small temperature changes in the roof of the bottom layer under cultivation, the roof of the thermal expansion and contraction of roof caused minimal impact.
Plant watering, fertilization on the roof waterproof layer on some buildings may bring corrosion, how to do a good job of waterproof measures?
In this regard, the technical staff said that before the green roof waterproof layer on the original 1.5cm-2.0cm of a layer of volcanic ash, can improve the water resistance, corrosion resistance and permeability resistance. After this treatment, in the combined effect of the soil cover, can improve the waterproof ability of the roof.
But the roof is waterproof and drainage is a problem of the two aspects, and therefore must also deal with the roof drainage system. In the construction of the roof greening design, planting pool, pool and road should be in accordance with the roof drainage system, a reasonable planning and design, do not arbitrarily seal or cut off the original drainage, do not arbitrarily change the slope. In particular, a large pool of water drainage pipe, to the roof drainage and with the attention of the relevant elevation difference, so that the cultivation of excess water flow out of the pool.