Building Enclosure in Hong Kong

5. The New Peng Chau Market

Figure 5. 1 Elevation o f the main entrance . THE NEW PENG CHAU MARKET Architectural Firm: P & T Architects & Engineers Ltd. GENERAL This is another case study of a building enclosure which focuses on environmental control. The project is a threestorey buildin g housin g the market stall s in the lowe r two levels. The machinery room s are on the top floor . This offers a thermal insulation buffer agains t the solar heat gain on the roof. LOCATION The site is located on the outlying island of Peng Chau. With the last natural environmen t aroun d th e site, the project i s designed t o be environmental friendly . ENCLOSURE The building is mechanically ventilated but can also be naturally ventilated. This is facilitated by a mechanically operable louvr e system within the external wall which can b e use d a t nigh t whe n th e marke t i s closed. Th e external wall is finished wit h spra y paint an d cerami c wall tiles. Fixing is by means of bonding agent to ensure a good contact for th e concrete base . The columns ar e of fairfaced concret e structure finished with waterproo f coating. The roof i s designed with deep overhangs to shield off sola r heat. A fibre glass cladding system is designed for th e roof overhangs . The cove r par t o f th e buildin g i s designed t o b e finished with timber panels to give a natural appearance. Special varnish coat s th e timber t o sto p deterioratio n and insec t growth . COMMENTS Again, careful planning makes a building different. Wit h the budge t an d function s almos t unchanged , environmental consideratio n improve s th e energ y efficiency o f a building, making it more sustainable and creating harmon y betwee n it s user s an d th e environment. 45 Building Enclosur e i n Hon g Kon g Figure 5. 2 First floor pla n at 8.65 m.p.d . 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. meat stall wet goods dry goods switch room male toilet female toilet lift vegetable sorting area refuge collection office A.H.U. room store room escalator deck / ^ J ^Kyj PROMENAD E r— Figure 5. 3 Ground floor pla n at 4.00 p.m.d. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10 11 12 fish poultry lift disabled's toilet plant room transformer room newspaper LP.G. store void refuge collection scalding room loading & unloading Architect: P & T Architects & Engineers Ltd. Project Location : Wing O n Street, Peng Chau Materials for Enclosure : Spray paint and ceramic tiles on reinforced concrete wall , fairface d concret e non waterproof sealer on columns. Fibre glass cladding syste m an d minera l coatin g system for the roo f Completion: Scheduled for 1998 . 46 The Ne w Pen g Cha u Marke t Figure 5. 4 Roof plan at 16.3 0 m.p.d. Figure 5. 5 Mezzanine floor pla n at 12.45 m.p.d . 1. 2. 3. 4. 5. 6. 7. 8. 9. 10 11 12 13 generator room lift machine room FH/HR sprinkler tank F.S. pump room void scrubber area pump room pau unit condenser room translucent canopy escalator cover roof Building Enclosur e i n Hon g Kon g *%ffi~~r ~~~.' i ' - ^ r A i r *r ' r ^ ~ - , - \ %^ , . . , , , . * -,'/ *Figure 5. 6 Elevation — fibre glass cladding an d mineral coating are specified for the roof , timber panel s for the walls. 48 The Ne w Pen g Cha u Marke t •J.*y±--r^-\-'::^ 49 Building Enclosur e i n Hon g Kon g Plate 5.1 Model stud y for the building form an d enclosure. 50 The Ne w Pen g Cha u Marke t Figure 5.7 Sections showing dee p overhangs for sunshading. \A M 1% * if f PROMENADE