Midmakh / Work orders
Prototype · mock data Check a wall
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
  1. Record condition photographically with the marker in frame before any intervention.
  2. Strip loose render by hand; no mechanical cutting on original fabric.
  3. Extract salts with clay poultice at the rising damp line; allow two drying cycles.
  4. Re-point and rebuild the base course with clay + chopped hay mortar, matching the existing mix.
  5. Re-seat timber lintels in jujube / tamarisk, packed with stone and mud.
  6. Lay the plastic isolator at the base to break capillary rise; reinstate the gypsum band.
  7. 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
ItemQtyCost
Clay + chopped hay mortar
340 SAR / m³
3 m³SAR 1,020
Local stone (base course)
260 SAR / m³
1 m³SAR 260
Gypsum for band re-finish
4 SAR / kg
90 kgSAR 360
Jujube / tamarisk timber
95 SAR / m
25 mSAR 2,375
Palm frond (roof edge)
70 SAR / bundle
4 bundleSAR 280
Plastic isolator membrane
18 SAR / m²
45 m²SAR 810
Salt extraction poultice
45 SAR / m²
30 m²SAR 1,350
Labour & supervision5 dSAR 26,745
TotalSAR 33,200
Raised
28 Oct 2026 · by Midmakh triage engine
Status
draft
Site engineer
Contractor
Heritage authority