A perfect example of how a project can fail with a lack of consideration for the sequence of works. Why would you choose a fast drying screed and yet the building envelope has no roof?
The chemistry of FlexiDry is a reaction between the cement, additive and water which controls the drying process. Once you reintroduce water you have effectively negated the overall performance to which dry times cannot be maintained. The overall effect is considerable extra costs for remedial works, surface DPMs, to have a chance of completing the project on time.
In this picture the surface will need to be made good, a surface DPM applied to control moisture levels. The costs of remedial works would be at the equivalent level of the initial screed works.
The Screed Scientist® Opinion
If you use a fast drying screed of 3 days then you have the opportunity to lay the screed later in the construction programme and thus avoid problems such as these. Education of the project planners is key.