| 77 T T Kelly Deeks Efficiency all the way The White House provides a prime example of how to achieve energy efficiency without blowing the budget. Atkinson Harwood Architecture ARCHITECTURE Hawke’s Bay architectural practice Atkinson Harwood Architecture brings another high-performance home to the region with its recent project, the White House, providing a prime example of how to achieve energy efficiency without blowing the budget. Atkinson Harwood Architecture co-owner, registered architect, and Homestar assessor Sol Atkinson says this home is exactly where his practice likes to sit in the marketplace. “It has energy efficiency and a high-spec design without tipping over to being overly expensive,” he says. “Our approach is to adapt conventional construction to reduce the amount of framing which in turn allows for improved and additional insulation.” With superinsulation and improved building airtightness, overheating and managing internal moisture becomes increasingly important. To maintain good air quality and ventilation while recovering heat from the exhaust air, Atkinson Harwood Architecture specified a system from STIEBEL ELTRON, commonly used in New Zealand in Passive House builds. This system is arguably the most important component in a Passive House and is certified for its performance and quality, recovering up to 90% of the energy that would normally be lost through windows and returning it back to the heating system “This is a pretty great system and can be installed relatively easily when incorporated from the outset of a project,” Sol says. On the floor, Atkinson Harwood Architecture has used integrated sustainable technologies from QuickSet and Allied Concrete, SuperSlab+ for the ultimate high-performance, eco-friendly flooring solution. This edge-insulated concrete foundation has been designed to meet the latest R-value requirements in the H1 building code, and provides exceptional thermal performance while reducing energy consumption. The aluminium joinery on this home also embraces the building code H1 compliance changes, with a thermally broken suite from Altus rebated into the walls to keep that thermal break inside the building envelope where it can work most effectively. The White House builder Drinkrow Building was happy to have the opportunity to work with some different products on this project in pursuit of its Homestar rating. Installation of the ventilation system required some upskilling by Jesse Drinkrow and his team. “There are lots of different products on the market nowadays and the more you get to use them, the better you get,” Jesse says. “Completing this project has certainly made us more capable and increased our knowledge, and we are very happy with how it has come out.” As a Homestar assessor, Sol incorporates efficiency and sustainability into his design process and under new Homestar provisions, Atkinson Harwood Architecture has recently started to undertake its own energy modelling using Eccho recently released by the New Zealand Green Building Council. Kitchens, Wardrobes & Custom Furniture Commercial and Residential Design Quality Style www.kakapojoinery.com 06 651 1000 | info@kakapojoinery.com | Napier Proudly supporting Drinkrow Builders Your solution to H1 for raft foundations QuickSet is an insulated, internally-braced, and permanent formwork system for raft foundations that can exist either as a fully-insulated system or as edge insulation alone. Our patented system is a revolution in foundation design. Incorporating the insulation panel with permanent formwork is a game changer. 09 959 0990 sales@quickset.co.nz www.quickset.co.nz Proudly Supporting Arkinson Harwood Architecture
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