SUN, LIGHT & RAIN Designing Façades in the Tropical Climate Ar. Lillian Tay VERITAS Design Group ZAK World of Facades, Kuala Lumpur 2 August 2018
Lessons from Vernacular Architecture Local climate time-tested responses to Sun, Light & Rain Local materials Local skills & capacity Local culture
Challenges of Tropical Climate Climate & Location in building envelope design Balancing Views & Solar Heat Gain Managing Torrential Rain Building Materials for Hot, Humid Weather Finding Opportunities for Customization Balancing Sustainability, Cost & Constructability
Behind the Facade Design & specifications for User Comfort & Safety Optimizing daylight penetration Depth of floor plate for workplace Reducing Glare / interior reflections Framing Views out Screening off the Unsightlies : carpark, AC, etc. Permeable Facades for Sky Terraces experiencing the tropical outdoors
The Architect s aspirations Innovation & Design Identity through Customization & Localization Local expression Extending Cultural Memory Creating a Sense of Place
PROJECTS
MINISTRY OF NATURAL RESOURCES & ENVIRONMENT Putrajaya 2006
Sun-shading simulation studies with Suncast / Apache to verify the effectiveness of the site planning strategy and shading devices overall energy consumption / BEI = 136 kwh/m²/year OTTV = 45 W/m² which ranks among lowest 5% in Malaysia
MINISTRY OF NATURAL RESOURCES & ENVIRONMENT Putrajaya 2006
MINISTRY OF NATURAL RESOURCES & ENVIRONMENT Putrajaya 2006 MINISTRY OF NATURAL RESOURCES & ENVIRONMENT Putrajaya 2006
MINISTRY OF NATURAL RESOURCES & ENVIRONMENT Putrajaya 2006 Sliding sun shading and rain screens @ serambi
Multi-functional Sun shade & Light shelf @ podium façade detail plan of screen MINISTRY OF NATURAL RESOURCES & ENVIRONMENT Putrajaya 2006
900 2400 12 mm thk. light blue tinted tempered glass 1500 4200 200 700 900 6 mm thk. clear tempered glass 6 mm thk. sandblasted spandrel glass 750 building facade podium 2 & podium 3 1500 900 900 200 400 105145150 200 550 multi-functional light shelves : Sunshade reflects daylight into office 50 2750 office space F.F.L cross section
6 mm thk. light blue tinted tempered glass (30% of total tower façade area) 6 mm thk. Stopsol Classic Dark Blue Glass (70% of total tower façade area) 4200 1000 1200 1000 2750 6 mm thk. sandblasted spandrel glass (30% of total tower façade area) 6 mm thk. Stopsol Classic Dark Blue Glass (70% of total tower façade area) 900 1000 250 AA/DD Fixed 6mm thk. tempered frosted glass with fire rated Insulation and bracket support 250 Continuous band of recessed lighting to specialist 50 50 6mm thk. clear tempered glass by ID Internal blinds housing by ID 100 100 540 100 50 300 16 550 Powder-coated alumn. pelmet System partition to ID Suspended ceiling system to archi s specs. Brushed finish s/steel edging band 38 x 12 mm thk. h.w. timber strip ceiling with 6 mm gap (at skygarden levels only) Blinds by ID 50 r.c. column to engr s detail Fixed 6mm thk. tempered light blue tinted glass in concealed alumn. frame to specialist detail TYPICAL TOWERFLOOR (LEVEL 2-17) 1075 ID finishes to spec. r.c. slab & beam to engr s detail typical tower wall section building facade tower typical tower wall section tower close-up
sky gardens @ the tower MINISTRY OF NATURAL RESOURCES & ENVIRONMENT Putrajaya 2006
Gain (W) The 4pm shot @ the verandah Podium 1 Solar Gain 8 0 000 7 0 000 4 th Floor 6 0 000 5 0 000 4 0 000 Grd Floor 3 0 000 2 0 000 1 st Floor 2 nd & 3 rd Floor 1 0 000 0 00:0 0 06:00 12:00 18:00 00:0 Date: M o n 15/May Solar gains: 1STF0000 (model05wtshade.aps) Solar gains: 4THF0000 (model05wtshade.aps) Solar gains: 2NDF0000 (model05wtshade.aps) Solar gains: GRDP0000 (model05wtshade.aps) Solar gains: 3RDF0001 (model 05wtshade.aps)
MINISTRY OF NATURAL RESOURCES & ENVIRONMENT Putrajaya 2006 rain screens @ the verandah
Gain (W) Tower Solar Gain 70000 60000 11 th, 12 th,14 th & 15 th Floor 50000 40000 10 th,13 th, 16 th & 17 th Floor 30000 20000 10000 0 00:00 06:00 12:00 18:00 00:0 Date: Wed21/Jun Solar gains: 13TH0001 (latest.aps) Solar gains: 14TH0002 (latest.aps) Solar gains: 15TH0000 (latest.aps) Solar gains: 16TH0000 (latest.aps)
Shade Type B Shade Type D Sky Garden Shade Type C Shade Type A MINISTRY OF NATURAL RESOURCES & ENVIRONMENT Putrajaya 2006 A Study In Shading Devices
1SENTRAL Kuala Lumpur 2007
1SENTRAL Kuala Lumpur 2007 Aluminium & stainless steel brise soleil at western facade
1SENTRAL Kuala Lumpur 2007 Curtain Wall Detail Sunscreen of aluminium and timber on MS support
Timber screen wall Sunscreen of aluminium and timber on ms support 1SENTRAL Kuala Lumpur 2007
1SENTRAL Kuala Lumpur 2007
Builder : MRCB Engineering Sdn Bhd Façade Contractor : FTE Sdn Bhd 1SENTRAL Kuala Lumpur 2007
MENARA BINJAI Kuala Lumpur 2012 GBI Certified BCA Green Mark Gold Plot Size Type Floors Net Leasable Area Built UpArea Typical Floor Plate Typical Floor Efficiency Building Energy Index (BEI) ETTV 1.07 Acres Office Spec. Building 36 storeys + 4 basement parking 31,700m² 43,000m² 1,200m² (net) 1,468m² (gross) 81% 150kWh/m2/year 49.85W/m2
Remembering the house & the garden
celebrating the memory of the site
Sky Garden at every 3 floors the urban verandah : Experiencing the tropical outdoors
urban verandah
Building Energy Index (BEI) of 150 kwh/m2 per year ETTV - 49.85W/m2 Curtain wall fitted with double-glazed low-e glass with low reflective coating for optimum heat and sound insulation Photo sensors to switch down parameter lighting for maximum day light. Individual lighting controls every 320sf.
permeable curtain wall
W HOTEL Kuala Lumpur 2018 GreenRE Gold
30 Floors Resi. 17 Floors Hotel
ETIQA Kuala Lumpur 2018 GreenRE Platinum GBI Gold
Key Features of Building Design Building Energy Index (BEI) 86kWh/m2 per year Energy savings reduction of about 57% from conventional building Energy cost decreases63% from RM3.65 mil p.a. to RM1.32 mil p.a.
Level Depth of Harvested Daylight (m) Level 10 Facing North West and South East Up to 3meter Facing West Up to 1meter Facing South Up to 2meter Level 18 Facing North West and South East Up to 3meter Facing West Up to 1meter Facing South Up to 2meter Level 25 Facing North West and South East Up to 4meter Facing West Up to 4meter Facing South Up to 4meter Daylight Analysis Natural Daylight 30.6% of workspace does not use Artificial Lighting
STAR RESIDENCES Kuala Lumpur 2019
PUTRAJAYA BUS & TAXI TERMINAL PERBADANAN PUTRAJAYA Putrajaya 1999
DBKL TOWER Kuala Lumpur Competition 2014
FAÇADE CONCEPT
Natural Lighting Analysis Diagram
SUN, LIGHT & RAIN Designing Façades in the Tropical Climate Ar. Lillian Tay VERITAS Design Group
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