Our Off-Site Manufactured (OSM) Wall Panel℗ system is the foundation for the building system and complies with New Zealand standard (NZS3604). NZ PATENT NUMBER: 766967.
Produced in a dry, controlled factory environment by licensed Frame & Truss plants nationwide. The OSM Wall Panels℗ are manufactured cost efficiently in production runs and are supplied as a standard stock item in modules of 600mm or 1200mm wide. The hight can be adjusted to suit each house design.
More or less all of the details and fixings, including bracing, is standard NZS3604 & E2/AS1 which the builder on-site will be well familiar with. The only difference is really that the “pre-nailed” framing is coming in smaller segments and with cladding on, all the rest is traditional site-work.
The standard cladding is Radiata Pine Vertical Shiplap Solid H3.2 Primed, with a net cover of 150mm, so the 1,200mm wide wall panels are supplied with 7 @ weatherboards factory fitted and the last (8th) weatherboard is fitted on-site after the vertical Rigid Air Barrier (RAB) join has been taped.
As the cladding is factory fitted, there is very little labour required on-site to tape and fit the last (8th) weatherboard, compared to supplying pre-nailed framing and then fitting RAB, cavity battens, cavity closers and all weatherboards on-site.
Quick installation of wall panels on-site by two builders, no need for a crane.
Significant savings in co-ordination on site as the entire envelope, including roof can quickly be installed and make the building weatherproof in 3-4 days, compared to 1-2 months for conventional build on-site, the latter by first installing pre-nailed framing and trusses (exposed to weather), then RAB, then cavity battens, then cladding, then roof.
Economy of scale and standardisation in combination with OSM Wall Panels℗ can reduce the construction cost with up to 20% compared to conventional build.
External walls from outside to inside:
- Vertical Radiata Pine Weatherboard 18mm, H3.2, Primed and two top coats of acrylic paint
- 45mm cavity, Structural Cavity Battens, no nogs
- 8mm Rigid Air Barrier (RAB)
- 45 x 140mm studs, 600mm ctrs
- 140mm Earthwool (R-value 4.1)
- Intello air barrier membrane to inside face of framing
- 45mm service cavity
- 50mm Earthwool (R-value 1.4)
- 10mm GIB lining
- Total Insulation R-value 5.5