Work order · WO-2026-021
Ra‘oum Castle
HAD-01 · Al-Hadn · Tower · W elevation
Estimate
SAR 33,200
5 days · Unassigned
Scope of works
Re-seat the stair approach and arrest water ingress into the rock footing of Ra‘oum Castle.
Evidence
Max crack width4.7 mm
Growth rate0.13 mm / month
Surface loss8%
Dominant mechanismSalt crystallisation
Last capture02 Aug 2026
Sequence
- Record condition photographically with the marker in frame before any intervention.
- Strip loose render by hand; no mechanical cutting on original fabric.
- Extract salts with clay poultice at the rising damp line; allow two drying cycles.
- Re-point and rebuild the base course with clay + chopped hay mortar, matching the existing mix.
- Re-seat timber lintels in jujube / tamarisk, packed with stone and mud.
- Lay the plastic isolator at the base to break capillary rise; reinstate the gypsum band.
- Capture post-repair state and close the loop in the ledger.
No cement, no modern render, no replacement of original fabric beyond what the measurement requires. Any deviation is a scope change requiring engineer sign-off.
Bill of quantities
| Item | Qty | Cost |
|---|---|---|
| Clay + chopped hay mortar 340 SAR / m³ | 3 m³ | SAR 1,020 |
| Local stone (base course) 260 SAR / m³ | 1 m³ | SAR 260 |
| Gypsum for band re-finish 4 SAR / kg | 90 kg | SAR 360 |
| Jujube / tamarisk timber 95 SAR / m | 25 m | SAR 2,375 |
| Palm frond (roof edge) 70 SAR / bundle | 4 bundle | SAR 280 |
| Plastic isolator membrane 18 SAR / m² | 45 m² | SAR 810 |
| Salt extraction poultice 45 SAR / m² | 30 m² | SAR 1,350 |
| Labour & supervision | 5 d | SAR 26,745 |
| Total | SAR 33,200 |
Raised
28 Oct 2026 · by Midmakh triage engine
Status
draft
Site engineer
Contractor
Heritage authority