The roof must be dry to bond with the roof.
Waterproofing of old roof.
Waterproofing is the process of making an object or structure waterproof or water resistant so that it remains relatively unaffected by water or resisting the ingress of water under specified conditions.
The roof must be clean or the material will adhere to the dirt and not the roof.
Old flat roof waterproofing epdm roof waterproofing when deciding the most suitable solution for waterproofing a flat roof the building owner or property manager should take in consideration with equally importance not only the expertise and reliability of the roofing contractor but as well the material system chosen.
On the other hand while breaking the old waterproofing layer on the ceiling the slab also gets damaged to a certain extent.
Such items may be used in wet environments or underwater to specified depths.
By waterproofing as you go no water damage to new roofing materials or the existing building can occur during construction.
Water resistant and waterproof often refer to penetration of water in its liquid state and possibly under.
Some old materials can be sealed over others require removal.
Pay as you go repair small areas of the flat roof at a time due to molecular welding new to old.
No schedule complications or disturbing the occupants and contents of the building.