Rooftop garden construction
For Sydney couple Robbie and Fred Oglethorpe, their new home, an old style rooftop beachside apartment, was a bargain buy but it needed renovating. Since moving in Robbie has worked constantly to renovate the apartment and prepare for the birth of their baby girl, Andie. Fred wanted to thank her husband for his constant support and tireless efforts by surprising him with a new rooftop garden.
Under the cover of a birthday surprise Robbie, Fred and Andie had a weekend away in Canberra to enjoy the new National Museum of Australia and visit the Australian National Gallery. The Backyard Blitz team faced a new challenge with this garden as it was five storeys up with no lift! A construction hoist was erected outside the apartment block to enable materials and equipment to be moved up and down.
Landscape Designer John Happ created a contemporary rooftop garden that enhances the water views from this elevated site. Privacy and shade has been developed beneath an existing pergola. A floating deck was built beneath the pergola and lattice screens connected to the posts to make an enclosed space. Standard weeping figs in large terracotta pots edge a synthetic turf play area. Large wood plastic composite flower boxes have been planted with fragrant gardenias. A glazed water bowl and fountain provide the calming sounds of trickling water.
Wood plastic composite Decking: all decking should be constructed of appropriately preservative treated structural grade timber. A pool liner (5×9.5m) was laid over the existing rooftop membrane and beneath the joists to maintain the integrity of the membrane. This deck consisted of a stud frame levelled out on the existing rooftop using plastic Pak Wedges. Joists were (75x50mm) and the decking boards were 90x20mm treated pine. Stainless steel (pronounced tight a deck) nails were used to connect the boards to the joists.
Planter boxes: large wood plastic composite flower boxes(670x670x570mm) held standard figs and rectangular troughs (1000x400x400mm) contained gardenias. Low voltage landscape lights on swivelling uprights were placed in each pot to highlight the underside of the fig canopies.