M-row root board a waterproof compartment, the advantages of a coil, the secondary drainage waterproof membrane bonding type laying is completed thanks to the form of hot pick, to form a new waterproof layer, drainage features that have secondary waterproof function 2 , every root function in general does not have every root waterproofing membrane function, and PVC membrane due to the high density, with a strong root compartment can be adjusted according to the requirements of every root thickness of the film, to every root effect. 3, both hot bonding can take crystal structure due to the non-PVC material, the use of special glue can effectively destroy the surface structure of the material so that the second film can be effectively fused together, play water every root function. It also can be used in the form of mechanical hot pick. 4, the membrane strength PVC material compressive strength, compressive strength which is equivalent to 1.5 times the thickness of the membrane PS, HDPE material 2.5 times. 5, anti-collapse design of the Company have adopted anti-collapse drainage membrane design, which thanks to the top of the middle column support structure, no subsidence after casing geotextile ensure adequate drainage space. If you are interested or have questions, please contact us: for our friends interested can also visit our website directly, share stories and learn more detailed information on the construction process, such as: Basement drain underground drainage board construction process Garage floor waterproof construction technology