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EMR-07 · Aba Al-Saud
Emara Palace — storehouses
Storehouse · 1 storeys · 208 m² SE elevation built 1961documented criticality 2/5
Latest capture
31 Jul 2026 · 96 d ago
Measured on this visit
1.5 mm
max crack width
4%
surface loss
7%
salt loading
Stable
marker MK-EMR-07 · confidence 94% · Field survey
Risk
0–100
21Stable
stableintervene
Time to 5 mm114 months
Growth rate0.03 mm / month
Intervention estimateSAR 23,500
Findings
7 captures
Salt crystallisation
dominant mechanism on the last visit
Rising damp line at 42% 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
31 Jul 2026
| Defect | Width | Length | Face | Mechanism | Drives risk |
|---|---|---|---|---|---|
| Defect 1 | 1.5 mm | 1,612 mm | SW | Salt crystallisation | worst |
| Defect 2 | 0.6 mm | 1,091 mm | SW | Salt crystallisation | — |
The wall carries 2 separate defects at this visit. The widest one sets the risk band; the others are counted and carried in the record.
Capture ledger
7 accepted
| Date | Crack | Loss | Salt | RH | Mechanism | Captured by | Marker | Confidence |
|---|---|---|---|---|---|---|---|---|
| 31 Jul 2026 | 1.5 mm · +1 | 4% | 7% | 42% | Salt crystallisation | Field survey | MK-EMR-07 | 94% |
| 04 Mar 2026 | 1.3 mm · +1 | 3% | 8% | 37% | Surface loss | Field survey | MK-EMR-07 | 94% |
| 06 Oct 2025 | 1.2 mm · +1 | 3% | 7% | 51% | Structural crack | H. Al-Sharif | MK-EMR-07 | 95% |
| 11 May 2025 | 1.0 mm · +1 | 2% | 6% | 44% | Surface loss | Field survey | MK-EMR-07 | 98% |
| 13 Dec 2024 | 0.9 mm · +1 | 2% | 4% | 76% | Structural crack | Field survey | MK-EMR-07 | 90% |
| 17 Jul 2024 | 0.7 mm · +1 | 2% | 6% | 55% | Salt crystallisation | Field survey | MK-EMR-07 | 97% |
| 20 Feb 2024 | 0.6 mm · +1 | 2% | 5% | 57% | Surface loss | H. Al-Sharif | MK-EMR-07 | 88% |
Field note
Six storage rooms in the residential wing. Guardian: H. Al-Sharif.
Site reference: Najran Municipality — أبرز معالم نجران.