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Five to Six Star : Five to Six Star
17 Name Gisborne (Alexander) Description Single storey house in Gisborne. Brick veneer with tiled roof, built on concrete slab on ground. 4 large bedrooms, verandah, large family, dining and meals area. Size 270 m2 (includes verandah) Passive Solar Design Poor - large north-east facing verandah to the front adds extra shading reducing solar gain in winter. Deep L shaped external walls increases wall area and shading lowering the rating. Window to floor area is excessive increasing heat gain in summer through walls and windows. Living areas are orientated to the south-west which means no heat gain in winter and excessive heating by low western sun. House Rating 5.1 Star 6.1 Star Slab Raft Waffle Ceiling Insulation Roof R3.5 R4 Ceiling Reflective Foil Roof SS SS External Wall Insulation Batts R2 R2 Internal Wall Insulation Batts No Yes Single Glazed Windows Yes No Double Glazed Windows No Yes Additional Requirements Raft slab to waffle pod slab $1200 Ceiling insulation R3.5 to R4 $420 Internal wall insulation to the laundry, bath and powder room $275 Single glazed windows in family, dining, meals, kitchen and lounge changed to double glazed windows $2970 Cost $4860 Cost/ m2 $18 Legend: DS-Double sided reflective foil, SS-Single sided reflective foil