Internal tapes, PEF rods, expanding foams or silicones are no longer required. So there are less onsite materials, waste and handling, saving time and money.

Simply place the window in the hole and screw into position through an outer fixing fin.

Much has been done to improve the weathertightness with these windows. The window opening weatherline has moved out to the face of the wall underlay. This no longer allows the weatherline to extend inwards to the back side of the internal wall lining, so any failure water would drop into the cavity instead of onto the framing trimmer.The air seal has also moved out to the wall underlay line.

The window is screwed into position through an outer fixing fin then Smartfit™ 60mm flashing tape is applied over the fin and wall underlay to create an air seal.

When used in conjunction with a 'rigid air barrier' early close in and a lock up ready build can be achieved. Pre-line can start up to three weeks earlier than the conventional construction method.

Scope of use

The Smartfit™ Joinery System has been appraised for use as window and door joinery within the following scope:

• designed and manufactured in accordance with NZS 4211 for weathertightness, airtightness and structural design; and
• in new or existing timber framed buildings within the scope limitations of NZBC Acceptable Solution E2/AS1 Paragraph 1.1; and,
• with cavity-based cladding systems complying with NZBC Acceptable Solution E2/AS1 systems covered by a valid BRANZ Appraisal that specify a nominal 20 mm (minimum 18 mm) drained and vented cavity and,
• with masonry veneer complying with NZBC Acceptable Solution E2/AS1; and,
• situated in NZS 3604 defined Wind Zones up to and including, Extra High.

New Zealand Building Code (NZBC)

The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:

• Clause B1 Structure: Performance B1.3.1, B1.3.2, B1.3.3, B1.3.3(a), B1.3.3(h), B1.3.3(j)
• Clause B2 Durability: Performance B2.3.1, B2.3.1(b), B2.3.1(c), B2.3.2
• Clause E2 External moisture: Performance E2.3.2, E2.3.5, E2.3.7(a)
• Clause F2 Hazardous building materials: Performance F2.3.2, F2.3.3(a), F2.3.3(b)
• Clause F4 Safety from falling: Performance F4.3.1
• Clause G4 Ventilation: Performance G4.3.1, G4.3.3
• Clause G7 Natural light: Performance G7.3.1, G7.3.2
• Clause H1 Energy efficiency : Performance H1.3.1, H1.3.2E

Supporting evidence

The product has and can make available the following additional evidence to support the above statements:

Click Here for BRANZ