Metal Roof + Solar Modules vs Atum Integrated Solar Roof
Two systems bolted together versus one purpose-built roof that generates power from day one.
Galvalume / Metal Roof + Solar Panels
The old way — two separate systems, double the hassle
Panels racked on top of metal roof — gaps & mounting points
Mounting hardware punctures the roof membrane, creating leak points and corrosion risk over time
Raised panels catch wind — uplift failures above 90 kmph
Air gap under racked panels acts like a sail. Cyclones routinely tear off panels — a total loss
Pay for the roof. Then pay again for the solar install.
Two separate contractors, two timelines, two warranties. Panels also lose 10–20% power in the gap heat-trap
Key Problems
- ✗ Mounting hardware creates leak & corrosion points
- ✗ Panels fly off at winds >90 kmph — no wind uplift rating
- ✗ Heat trap under panels reduces generation by 10–20%
- ✗ Double installation: roof contractor + solar contractor
- ✗ Two separate maintenance contracts, two warranties
- ✗ Roof is still a sunk cost — panels are an add-on burden
Atum Integrated Solar Roof
One system — roof + power generation, built as one
Solar cells embedded in the roof sheet — flush, seamless
No separate racking, no mounting holes. The roof IS the solar panel — zero gaps, zero leak points
Flush profile withstands 250 kmph winds — cyclone proof
No raised panels to catch wind. The aerodynamic profile is structurally engineered to India's highest wind zones
30% more generation — same footprint as a metal roof
No heat-trap air gap. Cells run cooler, perform better. More kWh per sqft than any rack-mounted alternative
Atum Advantages
- ✓ No mounting hardware — zero leak or corrosion points
- ✓ 250 kmph wind uplift rating — India's highest wind zones covered
- ✓ 30% more power per sqft vs racked panels on metal roof
- ✓ Single installation step — one contractor, faster completion
- ✓ One warranty covers structure + generation
- ✓ Roof pays revenue from day one — not a sunk cost
