2. Insulation in the lower pain
2. Non -Suitable Infrastructure
If the surface of the roof or isogam is not completely clean, dry and uniform, the isogam does not adhere properly and raise.
2. Izogam properly
If the isogam is not properly installed, it will not be good and good.
2. No suitable roof sloping
If the water is not properly discharged from the roof, it will cause it to accumulate and infiltrate the isogam and eventually ruin it.
2. Using poor quality and invalid isogam
The cheap isogam does not have the standard standard, and they will crack very quickly, scalp or lose their insulation properties.