Architectural finishes: where is a dado (wall lining up to a certain height to resist splashes and abrasion) most commonly provided in buildings?

Introduction / Context:
A dado is a durable lining or cladding (often tile, stone, or washable paint) applied to the lower portion of interior walls to resist moisture, staining, and physical wear. It is specified in spaces where splashing or frequent cleaning occurs.

Given Data / Assumptions:

• Dado height commonly ranges from 900 mm to 1200 mm (varies by use).
• Surface must be washable and water-resistant.
• Functional priority over pure aesthetics.

Concept / Approach:
Bathrooms and toilets experience regular water splashes and require sanitary, easily cleaned surfaces. Dado tiling protects plaster from dampness and staining, reducing maintenance. While dining rooms and living rooms may include decorative wainscoting, functional dados for moisture control are characteristic of bathrooms.

Step-by-Step Solution:
Identify moisture-prone areas: bathrooms, W.C., wash areas, kitchens.Match with dado purpose: moisture and abrasion resistance; easy cleaning.Select bathrooms as the primary and most common location.

Verification / Alternative check:
Building specifications routinely call for ceramic/porcelain tile dado in bathrooms and W.C. partitions; kitchens use similar splash-back arrangements.

Why Other Options Are Wrong:

• Dining/living rooms: may have decorative panels but not typically moisture-control dados.
• Verandah: exterior finishes differ; wainscot/dado is not standard.
• Roofs: dado concept does not apply.

Common Pitfalls:
Confusing decorative wall panelling with sanitary dado; ignoring hygiene requirements of wet areas.

Final Answer:
Bath rooms