Hi All,
Our IP apartment complex roof is flat and owners with top level apartments (such as myself), each have an uncovered courtyard area on the roof to themselves (freehold not common property and a big space equal to the size of the covered area of the unit below it).
The complex is now 10 yrs young and the roof membrane has been replaced. The body corporate agreed to go with a contractor who applied “DuroMastic” coating for the replacement roof membrane for the 200sqm work (at $46k roughly - which was about half of the 2nd quote to use Emer-clad product).
Now that the work is complete, the following concerns have been raised by the majority of rooftop owners:
1. The product is very textured and retains alot of dirt which is very hard/ almost impossible to clean (an unreasonable amount of dirt is retained);
2. There are indentation marks made by furniture/ potplants (the contractor would do half a roof at a time, let it cure then move furniture to the completed side, to work on the other side);
3. There is some bubbling of the product in places;
4. In parts the surface appears permanently stained by dirt.
5. An aesthetic issue (possibly the texture) but the roof now feels sticky under bare feet.
Such problems were not evident in the prior surface (apart from wear and tear).
The above issues may point to defective application and / or the roof not being afforded enough time to cure. The contractor has been asked to review all issues, so not sure where exactly this line of questioning will take us (also a semi hostile body corp committee, with non roof owners not really caring about the issue and wanting the matter closed...nice).
My belief is that this product was not suitable for the surface in the first place. The roof tops are high use areas which residents use regularly, and the Duromastic product to me appears more relevant for commercial rooftops where access is more so for ad hoc access required for maintenance purposes such as repairing air con units etc.
Has anyone had similar experiences with roof membrane application/ replacements for high use residential rooftop courtyards?
Thanks,
Tom
Our IP apartment complex roof is flat and owners with top level apartments (such as myself), each have an uncovered courtyard area on the roof to themselves (freehold not common property and a big space equal to the size of the covered area of the unit below it).
The complex is now 10 yrs young and the roof membrane has been replaced. The body corporate agreed to go with a contractor who applied “DuroMastic” coating for the replacement roof membrane for the 200sqm work (at $46k roughly - which was about half of the 2nd quote to use Emer-clad product).
Now that the work is complete, the following concerns have been raised by the majority of rooftop owners:
1. The product is very textured and retains alot of dirt which is very hard/ almost impossible to clean (an unreasonable amount of dirt is retained);
2. There are indentation marks made by furniture/ potplants (the contractor would do half a roof at a time, let it cure then move furniture to the completed side, to work on the other side);
3. There is some bubbling of the product in places;
4. In parts the surface appears permanently stained by dirt.
5. An aesthetic issue (possibly the texture) but the roof now feels sticky under bare feet.
Such problems were not evident in the prior surface (apart from wear and tear).
The above issues may point to defective application and / or the roof not being afforded enough time to cure. The contractor has been asked to review all issues, so not sure where exactly this line of questioning will take us (also a semi hostile body corp committee, with non roof owners not really caring about the issue and wanting the matter closed...nice).
My belief is that this product was not suitable for the surface in the first place. The roof tops are high use areas which residents use regularly, and the Duromastic product to me appears more relevant for commercial rooftops where access is more so for ad hoc access required for maintenance purposes such as repairing air con units etc.
Has anyone had similar experiences with roof membrane application/ replacements for high use residential rooftop courtyards?
Thanks,
Tom