Measure field coverage and detail treatments independently
A large membrane area is only one part of the waterproofing bid. We separate horizontal field coverage from vertical upturns, corners, penetrations, termination bars and transition details. The schedule identifies each system and substrate so unrelated coatings or membrane layers are not combined into one area without explanation.
Liquid-applied systems need the specified coverage, coats and product basis before quantities can be converted from area to containers. Sheet systems need the agreed lap and ordering treatment. Those conversions are listed separately from net coverage. Existing substrate repairs, moisture testing and access conditions are recorded as pricing assumptions when the documents do not fully define them.
Scope interfaces to settle before pricing
- Distinguish waterproofing from roof membranes, air barriers and damp-proofing systems.
- Confirm responsibility for substrate preparation, drainage connections and protection layers.
- Identify who provides testing, flood tests, temporary protection and warranties in the requested bid scope.