Energy Efficient Apartments
Challenge
Some residential apartments in St Stephens Ave, Parnell, had a low-slope roof surface comprising of a single layer of torch-on bitumen membrane. Unfortunately the roof was leaking as it had been poorly installed in some areas. Additionally, there had been excessive movement; not only between the plywood substrate and the outside perimeter concrete wall, but between some of the ply sheets as well. As the membrane had been fully adhered to the substrate, this movement was causing the membrane to split. The apartments needed to be re-roofed.
Solution
The only option the customer knew was to rip-up the existing membrane and start again. Representatives of Viking Roofspec introduced the concept fleece-backed technology or F.B.S. membrane systems.
The polyester fibre-matt backing of the F.B.S. membrane forgave the rough/uneven nature of the bitumen roof surface, with the underside of the new membrane bond strongly to the top surface of the existing.
There was a significant reduction in waste and labour costs as the existing membrane did not have to be removed and dumped. Material savings were also achieved due to the substrate not having to be replaced.
Result
The Body Corporate is extremely satisfied with its new roof. Aesthetically it's a major improvement; it's a heat-reflective roof which will help the apartments save on air conditioning running costs, but more importantly, it no longer leaks. The project is also covered by Viking's Full System Warranty for the building owner's total peace of mind. A Viking Full System Warranty covers both the materials and the installation for 20 years in one document.
