•  คำนึงถึงความปลอดภัยของผู้ใช้อาคาร
•  ป้องกันมลภาวะทางเสียงและสายตา
• สร้างภาวะน่าสบาย

GREEN BUILDING DESIGN OBJECTIVES

CAN DEVIDE IN 3 WAYS

1. SERVE HUMAN COMFORT
2. SERVE OCCUPANT HEALTH
3. SERVE LOCAL AND GLOBAL ENVIRONMENT

GREEN BUILDING DESIGN MUST BE

1. SERVE HUMAN COMFORT

•  THERMAL COMFORT
•  VISUAL COMFORT
•  INDOOR AIR QUALITY
•  ACOUSTIC QUALITY

1.1 THERMAL COMFORT

BALANCE OF HEAT LOSS AND HEAT GAIN
BETWEEN

•  EXTERNAL FACTER - AIR TEMP/ WIND / RH / MRT
AND
•  INTERNAL FACTER - METABOLISM / CLOTHING

SEE MORE DETAIL IN ARTICLE - THERMAL COMFORT

THERMAL COMFORT FACTOR

•  AIR TEMP                 
•  MRT
•  AIR VELOCITY
•  RH
•  ACTIVITY
•  CLOTHING

         PSYCHROMATIC CHART                                                          BIOCLIMATIC CHART

• THERMAL COMFORT CAN ADJUST BY EXTERNAL COMFORT FACTER
•  AIR TEMPERATURE - AIR TEMP. PROVIDE THERMAL COMFORT TO OCCUPANTS - GREEN BELTS /TREES/WATER
•  MEAN RADIANT TEMP AWAREMESS - BUILDING ENVELOPE & BUILDING MATERIALS / SHADING DEVICES / SUN SCREEN / LIGHT COLOUR / BUILDING ENVELOPE
•  WIND - PASSIVE COOLING BY NATURAL VENTILATION - AIR FLOW/ WINDOW SIZE & LOCATION
•  RELATIVE HUMIDITY - SHOULD BE KEPT IN ACCEPT. LEVEL - NATURAL VENTILATION

EXTERNAL COMFORT FACTER

    

•  INTERNAL COMFORT FACTER
•  METABOLISM - BASED ON ACTIVITIES OF HUMAN LIVING
•  CLOTHING VALUE - BASED ON CHARACTERISTIC OF CLOTHING

-HOT WEATHER - SLIGHTLY / LIGHT COLOUR
-COLLD WEATHER - THICK / DARK COLOUR

1.2 VISUAL COMFORT

TO PROVIDE LIGHTING WITH BOTH QUALITATIVELY AND QUANTITATIVELY ADEQUATE
BALANCE BETWEEN NAT. LIGHTING & THERMAL COMFORT

•  QUANTITY OF LIGHT

•  LUMINANCE - THE LIGHT FLUX LEAVING A SURFACE AND REACHING THE EYE OF THE OBSERVER
•  IILUMINANCE - THE LIGHT STRIKING UNIT AREA OF A SPECIFIED SURFACE
•  LUX /FOOTCANDLE - STANDARD OF FUNCTION
•  DAYLIGHT FACTOR (%) - DESIGN GUIDELINE

•  QUALITY OF LIGHT

•  GLARE

-  EXCESSIVE CONTRAST  

•  CONTRAST

-  LUMINANCE RATIO

-  DIRECTIONS / COLOUR APPEARANCE /COLOUR RENDERING / VARIATION OVER TIME

                    

•  BUILDING ORIENTATION CAN ENHANCE NATURAL LIGHTING

•  GLAZING RATIO AND WINDOW DESIGN ENSURETHAT INTERIOR RECEIVE ADEQUATE NATURL LIGHTING

•  LIGHTING SPECTRUM OF ARTIFICIAL LIGHTING RESEMBLE THAT OF DAYLIGHT

•  LIGHTING CRITRIA - OPTIMUM INTENSITY / SIMILAR BRIGHTNESS / PROTECT GLARE / ADEQUATE CONTRAST / AVOID SHADOW
•  INTERACTION OF BETWEEN OUTDOOR ENVIRONMENT AND OCCUPANTS

1.3 ACOUSTICAL COMFORT

•  BUIDING SHOULD BE PROTECT OUTDOOR NOISE BY ORIENTATION AND BARRIERS -WALL / EARTH MOUNDS / VEGETATION
•  NOISE-GENERATING ACTIVITIES & EQUIPMENT SHOULD BE LOCATED AS FAR AS POSSIBLE IN UNOCCUPIED SPACE

•  SPACE WITH SHARED WALLS AND FLOOR SHOULD BE SIMILAR USE
•  REDUCTION OF SOUND TRANSMISSION - INCREASING THE MASS OF STRUCTURE
•  SOUND ABSORBING MATERIALS

ACOUSTICAL COMFORT