Description

The EMH Prefabricated Panel system (EMH system) is a prefabricated panelised timber framed construction system.

The system incorporates wall, floor, ceiling and roof panels, and where required by the structural design, glulam beams, which are assembled on site to form the structural system.

UPVC double or triple glazed joinery and insulation are incorporated in the prefabricated panels.

Exterior claddings are fixed to the structural panels.

Scope

The EMH system includes thermal insulation, window and door joinery and exterior wall cladding, wall and roof underlay, roof battens and purlins, and glulam beams where required by the structural design.

Plasterboard internal wall linings are included for fire-rated panels.

Roof cladding is outside the scope of the EMH system. The EMH system excludes buildings requiring fire separation between vertically adjoining units (i.e. units one on top of another). 

The EMH system is certified for buildings within the following scope:

• Stand-alone residential dwellings and terraced houses up to two stories; or other Importance Level 1 & 2 buildings (defined in Table 1.1 of NZS3604:2011):
• where the total height from lowest ground level to highest point of the roof is no greater than 10 m
• with light wall cladding (mass of cladding not exceeding 30 kg/m²)
• with light roofs (mass of roofing material & substrate not exceeding 20 kg/m²)
• with floor live loads not exceeding 1.5 kPa (i.e. domestic self-contained dwellings)
• on concrete floor slabs or on timber sub-floor structures designed and constructed in accordance with NZS3604:2011 para 6.2, founded on “good ground” as defined in NZS3604: 2011, or on engineered concrete raft foundations
• where the E2/AS1 Risk matrix score <20
• where the slope of any roof plane is not greater than 45 degrees nor less than 5 degrees to the horizontal
• where the maximum stud height for wall panels does not exceed 2.5 m ceiling height, or up to 4.8m for walls supporting roof load only.