Industry qualified professionals certified to design and build with HBB products and systems
We believe a successful outcome begins with professionals experienced in building design and project management systems. Working drawings using Revit design software have been constructed by AP Design to ensure each layer within the build is available for expansion and evaluation by the constructor. PROCORE project management software is connected by the constructor Premium Homes to ensure a build plan and complete understanding of the build is embedded before construction begins. With PROCORE comes photographic monitoring and record keeping through every stage in the build. PROCORE software builds a comprehensive record to be evaluated throughout the build and for connection to the home owner on completion. PROCORE project management records can also be converted to a record of learning for training purposes and ongoing development of the builder’s expertise.
Portal frame LVL construction
For this specific home HBB have chosen portal frame laminated veneer construction (LVL) Portal frame construction removes the need for roof trusses which typically prevent access to useable space in the roof cavity. Portal frame construction provides additional upper floor area for conversion to living space or accommodation. Speed to build and structural performance are two additional benefits. The portal frames comes with engineering statements and additional strength provided by metal plates and bolts within the wall to roof portal connections. Connection to foundation is also stronger by way of metal shoe brackets fixing the portal leg to the raised timber foundation.
Rammed Pile foundation
For this specific build the land state established a need for deep in-ground foundations. With concrete a major contributor to Co2 emissions and what would have been major earth works the decision was made to highlight the environmental and cost benefits provided by raised timber foundations. In most land conditions NZ3604 provides for 125 x 125 piles into ground with minimal use of concrete and earth works. The land out front of HBB had more extensive land issues hence the decision was made to use rammed piles. 50 piles rammed 5m into ground in one 8 hour day. No concrete, no earth works, and very low energy use. The outcome is a high performance pile foundation with LVL bearers and joists forming the frame work for connecting Magnum Board 18mm Flooring Underlay. The foundation allows for good air flow underneath the home, ease of access for services reductions in Co2 emissions and what is a good working example of best practice in climate safe housing. Lime chip has been chosen as the moisture management product over soil under the foundation. This removes the need for plastic layers manufactured from petro-chemicals. The dynamic performance of thermal mass enters the project at the foundation stage with Terra Lana wool insulation installed between the floor joists as the product providing hygroscopic performance in tandem with Magnum Board 18mm Flooring Underlay.
Above foundation level
Foreverbreathe Specification continues above foundation level with Foreverbreathe Wall Systems populating the space between portal frames. With Foreverbreathe methodology in play the home provides an educational space to discuss what causes internal moisture and the resulting performance impacts by exhibiting the materials that prevent these impacts. The home will have foundation, wall and ceiling sections exposed to ensure your understanding of the materials and Foreverbreathe Specification is complete.
What can be confusing language surrounding the terms airtight / vapour tight, vapour permeable, breathable, hygroscopic performance, building envelope and fire rating is broken down into easy to understand components. With house hold energy use on the rise the need for education becomes even more important. Hidden pollution is another subject of importance. The term ‘’hidden pollution’’ applies to common to market building materials and products you may bring to a home. What is hidden from view within the walls, ceilings and foundations has been proven to be a major contributor in establishing toxic landfill sites, poor air quality and health impacts. Plastic frame wrap, insulations such as EPS, XPS, spray foam and glass fibre. Lining materials such as cement based boards, particle board, and gypsum based boards all fit within the hidden pollution category.
NZGBC Zero Carbon Buildings
We are working with NZGBC to progress the homes compliance with Zero Carbon status.
We are working with Homestar rating professionals to further develop the rating tool to include indoor air quality and exposure of ‘’hidden pollution’’ contributing to environmental impacts.
If you cannot make it to the homes location we are posting regular updates on the build in HBB Instagram and where and how to obtain information on upcoming events and information. firstname.lastname@example.org will ensure your interest in the project gets to our product and system experts within the HBB sales team