Roofs in Rivers, Delta and Bayelsa come in many types. Long-span aluminium in new estates. Old corrugated zinc in many family houses. Stone-coated tiles in newer duplexes. Concrete decks on some storey buildings.
Solar can go on all of them. But the installer must do different things.
Roof by roof
| Roof | Solar? | What we check |
|---|---|---|
| Long-span aluminium | Yes, easy | Purlin spacing, sheet thickness |
| Corrugated zinc (new) | Yes | Timber strength, fixing points |
| Old rusty zinc | Fix first | Rust, holes, weak wood |
| Stone-coated tiles | Yes | Special tile hooks |
| Concrete deck | Yes | Tilted frames, drainage |
The golden rule: fix to the structure
Panels catch wind. Rainy-season storms are strong. The rails must bolt into the rafters or purlins under the sheet. Screwing only into the sheet is not safe.
Sealing
Every bolt makes a hole. Every hole must be sealed with the right washers and sealant. Good sealing means no leaks.
Old roofs
Some older houses in Sapele, Old GRA Port Harcourt and Agbor have tired roofs. We check them during the free site visit. If the roof is weak, we tell you what to fix first, or suggest a ground mount.
Coastal areas
On Bonny and Brass, salt air rusts cheap metal. Use aluminium rails and stainless bolts. Read solar in salty coastal air.
