Water is among the primary factors accelerating the deterioration of historic buildings when it seeps through roofs or pools around the bases of walls. Old Sana’a has experienced significant damage caused by heavy rains and flash floods, highlighting the vital importance of preventive measures and continuous maintenance to protect heritage dwellings.
Roofs and drainage outlets should be inspected periodically, particularly before and after the rainy season. This includes checking for cracks, water pooling, clogged drains, and signs of dampness across walls and ceilings.
Key measures include:
- Safely clearing blockages from drainage pathways.
- Repairing leak points using materials compatible with the building’s fabric.
- Inspecting roofs, parapets, and wall-junction zones.
- Monitoring for damp patches, peeling paint, or crumbling plaster.
- Consulting a conservation architect or historic buildings specialist if wide cracks or structural weaknesses appear.
Dampness must never be addressed merely by concealing stains under fresh paint. The root source of water ingress must be identified and treated first, while strictly avoiding modern additions that compromise the traditional walls' breathability and natural moisture regulation.
Preventive maintenance is far more cost-effective than repairing major structural failures; it remains the most critical safeguard for preserving historic homes for generations to come.