Sample selection: Group-10, Building-21

Location: Intersection of Wuyi Road and Wenjing Street, Shahekou District, Dalian

Construction year: 1981-1983

Scale: 20 households

Total construction area: 1205 m²

Terrain: gentle slope

Construction company: Dalian Institute of Technology

Standard floor plan

One-way split type

Shape coefficient: 0.38

East facade

South facade

West facade

North facade

Window-to-wall

9%

21%

9%

21%

Envelope system

Wall

Form

Red brick wall without insulation

Layer

External finish coat: 10 mm 1:2.5 cement mortar overlay;

Structural layer: 370 mm 75# red brick;

Interior surface: 2 mm hemp knife white gray

Performance

Thermal resistance: 0.50 - 0.53 (m²·K·W⁻¹);

Thermal transmission: 2.68 - 3.61 (W·m⁻²·K⁻¹)

Solar radiation absorption coefficient ρs: 0.56 - 0.78

Window

Form

Single glazing, Double casement window

Layer

Glass: ordinary transparent glass;

Frame: red and white mixed pine;

Performance

Thermal transmittance: 5.8 W/(m²·K);

Conductivity: 500 W/(m·K)