By Bob Burnett Architecture
Situated on the site of a previously demolished, earthquake-damaged house, are two super-insulated and highly efficient 2 storey dwellings. Under the new two for one rule where a house required to be demolished as a result of damage from the Christchurch earthquakes, two new dwellings were able to be erected as opposed to the single dwelling which had previously occupied the site.
Both homes are a reinterpretation of NZ’s first 10 Homestar Superhome in Church Square, Addington but to suit specific site and budget constraints. With highly compact ground floor footprints, a sense of space is maximised through the use of skillion ceilings made from SIP’s roof panels and the open plan living/dining/kitchen.
Glazing is oriented to the sun with minimal windows to the south and large north facing windows and doors. Windows to the East and West are expansive to allow for great daylighting and solar gain, protected from overheating by oversized eaves to the North and West. The windows are uPVC frames and recessed into the warm part of the wall to reduce thermal bridging and eliminate condensation to the interior side of the windows.
The exterior wall design allows for effective slab insulation due to the oversized 135mm bottom plate. The wall framing is a two-part system consisting of 90mm framing and a 45mm services cavity to house the services. These two insulating layers are separated by an internal wrap to provide air-tightness and internal vapour control.
An innovative feature of the build is in the use of the Metalcraft Thermospan SIPs roofing system, more commonly seen in commercial building. The panels combine, insulation, structure and cladding into a single solution. The system was favoured for its competitive price and reduction in onsite construction and time and superior insulation values.
Bob Burnett Architecture has a longstanding reputation for award winning, energy-efficient, space efficient designs that are super sustainable. Exquiste organic architecture that exhibits the fusion ideas from the two directors, Bob Burnett and Japanese Architect, Shizuka Yasui. An overarching theme ‘Japandi’ - is the intersection of Japanese and Scandinavian design aesthetics, both of which utilize minimalist design principles and organic architecture. Research shows the Japandi aesthetics and techniques enhance people's health and well-being by integrating warm and natural elements in biophilic design. Simple elgence cleverly connecting with nature, through timeless design that also minimises impact on the environment.
Bob Burnett Architecture has championed energy-efficient, environmentally sound architecture for two decades. Bob designed New Zealand’s first 7 & 10 Homestar rated homes. His ethos is to create both beautiful and high- performance buildings for better livability, health, and comfort. He wants to normalise building better by helping people understand the link between New Zealand’s suboptimal building code standards, that are 20 years behind other OECD countries and alarming health and wellbeing statistics. In late 2015 Bob founded the Superhome Movement and earlier co-founded the Quakestar rating system after the Christchurch earthquakes. Recently Bob received the Sustainable Business Network Sustainability Superstar award.