Viking Group Head Office
Challenge
Viking Group’s Head Office had an old steel roof (approximately 450m2) with minimal slope which had been leaking for decades.
The roof had been patched over the years but the time had come for a full replacement. The traditional method would normally have been to:
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Set up tarpaulins or alternative forms of overhead protection;
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Uplift the existing steel and then pay to have it dumped or collected for scrap;
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Commission a carpenter to re-pitch the roof;
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Supports to a minimum of 3 degrees slope; and
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Reroof in long run steel.
Solution
Viking decided to install its WarmRoof System on top of the existing steel roof rather than removing it; negating the need for protection of the interior.
This would insulate, waterproof and add more natural light to the building in one fell swoop.
First, they cut 50mm thick polyisocyanurate insulation panels into 180mm wide strips and adhered them inside every second tray of the existing built steel roof profile.
Next, the Viking Enviroclad heat-weldable TPO membrane was adhered on top of the insulation layer.
Result
Aside from the pristine, watertight roof and Drylights rendering several-fold more natural light to the inside of the building, the real value of this exercise has shown itself in the ensuing months.
Energy Savings
With the installation of the Viking WarmRoof the average saving per month in electricity is approximately$600 per month!
The premium dollar value outlaid to install this 450m2 Warm Roof compared to removing the old, re-pitching and installing a new 3 degree sloped steel roof, was approximately $17,000.
Based on the above monthly electricity bill savings, the cost difference of this Warm Roof would be amortised in 2.5 years after which time, it will begin to financially contribute to the Viking Group in energy savings.
