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Solar-Ready Rooftops

Rooftop Solar & Space Planner

Size your solar system, see what a lower tilt really costs you, check it fits your roof, get a wind-resistant structure concept that beats the local-fabricator failure point — and turn the shaded space underneath the panels into a usable rooftop room instead of wasting it.

Your rooftop

Location: Faisal Hills / B-17 / Taxila / Islamabad (33.73°N). Figures indicative; final system, structure and slab confirmed by our team.

See it from your rooftop · optional, AI-assisted

Upload a few rooftop photos, or paste an unlisted YouTube walkthrough link, and we'll read the obstructions, shading and rough usable area to fill in the form. For measurements from video, keep a measuring tape or a standard object in frame as a scale reference.

An illustrative concept of a 8 kW array with a usable space underneath — not a final design.

Measure your roof from a photo · premium, to-scale

Upload a near-top-down photo with a known length in frame (a 1 m tape or a standard object). Mark the two ends of that length, then tap your roof — we return a measured area. The 2.5 m canopy height is drawn to scale on your photo so you can picture the real thing.

Measured area assumes a roughly top-down photo; oblique shots are approximate. To-scale height is a 2-D visual, confirmed on the site visit.

Recommended system

System size
8.19 kW
14 × 585 W
Inverter
8 kW
1-phase
Generation
928
kWh / month
Bill offset
100%
of your usage

Sized to cover your consumption; enter a target kW on the left to size to your own number.

Tilt & orientation trade-off

At 10° facing South, this array makes about 11,134 kWh/year. That's roughly 4.5% (524 kWh/year) less than the optimal 30° due south — the cost of a flatter or turned array.

Does it fit your roof?

The array needs about 36 m² of your 74 m². It fits, leaving space for the usable areas below.

Lay out the panels on your roof · drag tanks, click panels

sun 49.5° high · 2 panel(s) shaded
××
Side elevation — 2.5 m clear, braced frame
2.5 m
Structural frame — top view (columns · beams · bracing)

20 columns on a ~3 m grid, tied by beams and cross-bracing on every side.

Panels that fit
20
System size
11.7 kW
Generation
15,905 kWh/yr
Roof used
48%

Auto-packed at a flush row pitch (0.3 m setback, 0.2 m keep-out). Shadows are indicative for Summer 9:00 — final layout confirmed on site.

Wind-resistant structure

Design wind
40 m/s
144 km/h gust
Uplift / panel
2.43 kN
worst roof zone
Total array uplift
34 kN
held by anchorage

Tilted panels act like wings — wind uplift here exceeds the system's own weight, so the roof connection is governed by anchorage, not ballast. This is exactly why locally-fabricated frames (which fail around 110 km/h) are unsafe against our 144 km/h design gust.

Preliminary concept only. The final member sizes, connections and anchorage are engineered and sealed by Al Ammana's structural engineer (ASCE 7 wind, confirmed per Building Code of Pakistan) before fabrication.

Structure material & engineered design

Steel (est.)
282 kg
34.4 kg/kW
Columns
4
8 kg/m section
Material (est.)
PKR 136,080
@ PKR 400/kg
Clear height
2.5 m
usable
Usable space underneath: usable ✓

Standing headroom for most uses — seating, drying yard, storage, utility.

The frame is an elevated clear-span canopy — column grid and height are set so the space underneath stays open and usable, not a flush mount.

🔒 Engineered structural design

A commercial-grade, stamped-ready design — released only after our engineer approves it and the design fee is settled. It includes:

  • Full member schedule (sections, grades, lengths, weights)
  • Base-plate & chemical-anchor footing detail
  • Wind load summary + anchorage design
  • Usable-space clearance & layout notes
  • Stamped-ready sheet for fabrication

Indicative design fee PKR 15,000. Leave your details — our engineer reviews it and sends a secure unlock link.

or ask on WhatsApp

Can your roof carry it?

System + structure
433–509 kg
panels + steel
Spread load
13.2 kg/m²
8.8% of roof capacity
Assessment
Safe

Well within a standard RCC roof's capacity — safe when the structure loads are spread across footings.

Use the space underneath

The elevated panels create a 36 m² shaded canopy. Instead of wasting it, design it as:

Shaded seating / majlisLaundry & drying yardKitchen garden (shade-tolerant)Water-tank enclosure & storageOutdoor kitchen / BBQKids' play / prayer nook

Laid out for Islamabad's NW breeze and the sun path — a rooftop room, not a dead deck.

Get exact figures from our team on WhatsApp

Indicative Tier-1 estimate from verified location data, building science and ASCE 7 wind. System price, structural design, existing-slab capacity and net-metering are confirmed by Al Ammana's engineers (quote only) before any work.