Client: Henrietta Street Trust
Sector: Class 5 Office Building
Location: Chippendale, Sydney
Project Value: $200,000
Background: During heavy rains, the tenants were faced with uncontrollable leaks and instances of ceiling collapse caused by a deteriorating metal roof and rusted box gutter.
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Water ingress, once detected, should never be underestimated, as it has the potential to escalate into a much larger and more expensive problem.
Mould Infestation Health Risk
Compromised Structural Integrity
Increased Financial Repair Costs
Adhering to Australian Standards for roof replacement was non-negotiable.
We approached the task with a commitment to quality, ensuring that every aspect of the repair work met these rigorous standards.
To provide the Owners with peace of mind and underscore our confidence in our work, we offered a substantial 10-year guarantee.
Adherance to Australian Standards 1562.1 Installation of Metal Sheet Roof and Wall Cladding
Adherance to AS 3500: Plumbing and Draiange
Workmanship and Materials Guarantee
Minimise downtime and protect the exposed roof
To mitigate weather-related risk, we adopted a staged approach
With forecasted wet weather, the project demanded swift execution
In the face of unforgiving rains, we were faced with 2 options;
1) Let the ceiling collapse or
2) Work admist the rain with a robust strategy
Our objectives were: stop water ingress and safe guard the buildings interior from moisture.
Box Gutter & Sump Upgrades
Purlins & Roof Clean
Sarking & Roof Sheeting
Capping & Flashings
Spray Testing
Our construction methodology followed a staged approach where by at the end of each day, we reinstated the old roof sheets to mitigate weather-related risks.
During the course of the project, our superintendent conducted regular quality assessments to verify the effectiveness of our workmanship, ensuring that the application was compliant and leak-free.
Installation of Box Gutter SupportsReplace severely deteriorated and moisture-damaged sleepers with like-for-like.
Increase Box Gutter CapacityInstall new Colorbond 270mm (w) x 100mm (h) with built-in 1:100 falls to allow free-flowing water during heavy rain events
Install New Sumps with Mesh Guards:Install new 600mm (l) x 270mm (w) x 200mm (d) sumps with mesh basket leaf guards to slow down water flow into downpipes to prevent back-charging into internal areas
Clean Roof Cavity:Remove and dispose of existing roof insulation and vacuum clean the roof cavity to make way for new isulation.
Installation of new purlins:Replace all existing purlins with new Lysaght Zinalume Purlins at 800mm c/c to guarantee falls to roof sheets and to allow larger box-gutters
Install new Sarking & Insulation: Install new vapour permeable sarking and insulation batts to decrease heating and cooling costs
Install new Drainage Battens:Start Install new drainage battens to between sarking and roof sheeting to facilitate air and moisture flow.
Install New Metal Roof Sheeting:Apply caulk at corners and edges where tiles meet other materials or fixtures to ensure a watertight seal. Install any trims to protect tile edges to create a clean transition to adjacent surfaces.
Install new step flashings to adjoining building: Rake out existing brick joint and recess install our flashing into the building. Install polyurethane to seal.
Install Perimeter Cappings:Double seal install all cappings beneath and over laps to ensure zero moisture penetration. Our cappings were installed with a double drip-groove to eliminate any chance of capillary action.
Detail Roof Penetrations:We had 3 types of roof penetrations: AC Services
Threaded Rods, Vents.
1) AC Conduits were detailed by pulling the cables through a supported 1-way PVC pipe
2) Threaded rods were embeded in epoxy and oversealed
3) Vents were detailed with dektites, hose-clamps and top-sealed with Sikaflex Pro.
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Compliance: AS1562.1: Metal Roofing & Cladding
Structural Integrity: Extended lifespan
Reduced Premiums: Reduced Insurance Risk
Peace of Mind: Workmanship Guarantee
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Metal Roof Replacement is a skill. Like every other skill, there are amateurs then there are the professionals. The results you achieve depend on the team you choose and the culture they have.
Our team are experts in their craft, they know the difference between a good and great product, they are the first to identify intricate details, utilise new technologies and strategies whenever they appear.
ATOMIC PROJECTS is the ultimate all-in-one building partner guiding you from the first to last day.
There is no one better on the planet to bring your project to life.
Over the last 4 years we have worked exceptionally hard in delivering projects all over Sydney.
We have access to over 1,500 people Sydney-wide, with specialists, experts and professionals in every field imaginable.
All dedicated to the pursuit of excellence.
