Portfolio
MAN-01 · Al-Manjam
Al-Manjam village — north quarter
House · 2 storeys · 189 m² N elevation built c. 1780estimated criticality 3/5
Latest capture
27 Sept 2026 · 38 d ago
Measured on this visit
1.5 mm
max crack width
5%
surface loss
11%
salt loading
Stable
marker MK-MAN-01 · confidence 96% · S. Al-Makrami
Risk
0–100
21Stable
stableintervene
Time to 22% loss—
Growth rate0.02 mm / month
Intervention estimateSAR 29,000
Findings
6 captures
Surface loss
dominant mechanism on the last visit
Rising damp line at 36% RH
salt crystallisation risk band
N face exposed to prevailing wind
drives the wet–dry cycle above 44 °C
Crack width over time
mm · measured, then forecast
Dots are accepted captures. The dashed tail is a linear projection of the measured rate — it is what moves this structure up the intervention queue, not the current width alone.
Defects on the latest visit
27 Sept 2026
| Defect | Width | Length | Face | Mechanism | Drives risk |
|---|---|---|---|---|---|
| Defect 1 | 1.5 mm | 938 mm | SE | Surface loss | worst |
| Defect 2 | 1.0 mm | 1,638 mm | N | Salt crystallisation | — |
| Defect 3 | 0.4 mm | 732 mm | SW | Salt crystallisation | — |
The wall carries 3 separate defects at this visit. The widest one sets the risk band; the others are counted and carried in the record.
Capture ledger
6 accepted
| Date | Crack | Loss | Salt | RH | Mechanism | Captured by | Marker | Confidence |
|---|---|---|---|---|---|---|---|---|
| 27 Sept 2026 | 1.5 mm · +2 | 5% | 11% | 36% | Surface loss | S. Al-Makrami | MK-MAN-01 | 96% |
| 03 Jun 2026 | 1.4 mm · +2 | 5% | 11% | 75% | Salt crystallisation | S. Al-Makrami | MK-MAN-01 | 93% |
| 07 Feb 2026 | 1.4 mm · +2 | 2% | 8% | 29% | Surface loss | S. Al-Makrami | MK-MAN-01 | 96% |
| 14 Oct 2025 | 1.1 mm · +2 | 4% | 8% | 36% | Structural crack | Field survey | MK-MAN-01 | 89% |
| 20 Jun 2025 | 1.1 mm · +2 | 4% | 5% | 69% | Salt crystallisation | S. Al-Makrami | MK-MAN-01 | 90% |
| 24 Feb 2025 | 1.1 mm · +2 | 3% | 5% | 57% | Surface loss | S. Al-Makrami | MK-MAN-01 | 87% |
Field note
Historic village on the northern bank of Wadi Najran, cited as a prominent example of the region’s mud architecture. Guardian: S. Al-Makrami.
Site reference: Saudi Press Agency — Al Manjam village report.