Rooftops are perimeter jobs. The quantity is decided by the parapet loop and the width of the coping — and both are usually larger than people expect before they walk it with a tape.
At a Glance
Every other bird job is a surface you can point at. A rooftop is a loop, and loops add up fast. A modest 40 ft by 30 ft terrace has a 140 ft perimeter. If the coping is six inches wide and needs two rows, that is 280 running feet before you have touched the water tank platform or the lift room.
The second difference is exposure. Nothing on a building takes more sun, rain and wind than the parapet. Galvanised steel that would be fine on a sheltered sill will show rust streaks down a parapet face within a couple of seasons, and those streaks are permanent on plaster.
Rust streaks are not a warranty issue, they are a spec issue
Once a rusting fixing has streaked a parapet, replacing the spikes does not remove the mark. On exposed rooftops, specify SS-304 from the start.
| Element | Length | Width | Rows | Running feet |
|---|---|---|---|---|
| Main parapet loop | 140 ft | 6 in | 2 | 280 ft |
| Lift machine room | 28 ft | 4 in | 1 | 28 ft |
| Water tank platform | 24 ft | 4 in | 1 | 24 ft |
| Stair headroom | 18 ft | 4 in | 1 | 18 ft |
| Subtotal | 350 ft | |||
| Plus 10% | 385 ft |
The main parapet is 80% of the quantity, and the doubling for coping width is what takes it there. This is why an estimate made from a floor plan is usually about half the real number.
The correct default. No rust, no streaking, and it outlasts the paint cycle on the parapet below it.
Covers copings up to about eight inches in a single fixing run rather than two parallel strips.
For industrial roofs where crows and kites are the problem, not just pigeons.
For shafts, light wells and open stair cores that break the roof plane — a surface product cannot close those.
Preferred on old parapets where the plaster is chalky and adhesive will not get a reliable bond.
If the roof carries an array, that is a separate item — see solar panel bird control.
Safety comes before quantity
Parapet work means working at an edge. On anything above ground floor this needs proper access and, for society or commercial buildings, a contractor rather than a resident with a ladder.
Made in Delhi, supplied across India, at factory rates rather than reseller margins.
Send a roof plan or photographs and we will work out the running feet including the interruptions.
We will specify stainless for an exposed parapet even where a cheaper option would close the sale.
Whole-block and multi-tower roofs are quoted on total running length.
DMRC, PowerGrid, Berger and GAIL use our products on real installations.
We would rather quote 385 ft that works than 200 ft that leaves half the roof open.
Walk the parapet with a tape, note the coping width, count rows, add the tank platform and lift room, then add 10%. Or send us photographs and we will do it.
Almost always the coping width. A six-inch coping needs two rows, which doubles the running feet for the whole perimeter.
SS-304 stainless. A rooftop is the most exposed surface on the building, and rust streaks on a parapet are permanent.
Adhesive on sound, clean concrete. Screws on old or chalky plaster where adhesive will not bond reliably.
Yes. It is the first place birds move to once the parapet is done, and it sits directly above the stored water.
Ground-floor terraces, yes. Anything involving working at a parapet edge above ground level needs proper access and usually a contractor.
Those are openings, not surfaces — they need netting rather than spikes.
A roof plan, or photographs of each parapet run with the coping width noted. We will return the running feet, the row count and the price — at no cost.