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EMR-06 · Aba Al-Saud
Emara Palace — annex
House · 1 storeys · 224 m² SE elevation built 1961documented criticality 3/5
Latest capture
26 Jul 2026 · 101 d ago
Measured on this visit
2.3 mm
max crack width
6%
surface loss
15%
salt loading
Watch
marker MK-EMR-06 · confidence 92% · Field survey
Risk
0–100
34Watch
stableintervene
Time to 5 mm71 months
Growth rate0.04 mm / month
Intervention estimateSAR 35,500
Findings
5 captures
Surface loss
dominant mechanism on the last visit
Rising damp line at 62% RH
salt crystallisation risk band
SE 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
26 Jul 2026
| Defect | Width | Length | Face | Mechanism | Drives risk |
|---|---|---|---|---|---|
| Defect 1 | 2.3 mm | 823 mm | NW | Surface loss | worst |
| Defect 2 | 1.4 mm | 1,840 mm | NW | Surface loss | — |
| Defect 3 | 0.9 mm | 922 mm | S | Structural crack | — |
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
5 accepted
| Date | Crack | Loss | Salt | RH | Mechanism | Captured by | Marker | Confidence |
|---|---|---|---|---|---|---|---|---|
| 26 Jul 2026 | 2.3 mm · +2 | 6% | 15% | 62% | Surface loss | Field survey | MK-EMR-06 | 92% |
| 21 Nov 2025 | 2.1 mm · +2 | 6% | 9% | 73% | Structural crack | Field survey | MK-EMR-06 | 96% |
| 19 Mar 2025 | 1.8 mm · +2 | 3% | 13% | 46% | Surface loss | Field survey | MK-EMR-06 | 97% |
| 15 Jul 2024 | 1.4 mm · +2 | 2% | 8% | 48% | Structural crack | A. Al-Hadi | MK-EMR-06 | 90% |
| 11 Nov 2023 | 1.1 mm · +2 | 3% | 8% | 48% | Surface loss | Field survey | MK-EMR-06 | 87% |
Field note
Twelve-room annex recorded alongside the main block. Guardian: A. Al-Hadi.
Site reference: Najran Municipality — أبرز معالم نجران.