NZ BRICK SUPPLIER – AUBRICKS – TECHNICAL DETAILS

(Updated April 2020)

 


Product Description

The Aubricks Kiln-fired clay brick is an external wall veneer cladding product suitable for traditional veneer wall construction method with a 40-60mm brick cavity. Aubricks products in traditional brick standard dimension, detail and surface allowing a consistent brick height to facilitate the use of a 10mm thick mortar for laying and connection.

Aubricks product range is available in various color with nine sizes:

230*76*70mm

230*119*70mm

230*162*70mm

230*76*110mm

290*76*70mm

290*162*70mm

390*190*90mm

390*76*110mm

500*40*100mm

 

Scope of Use

Aubricks Bricks are suitable for use as external wall veneer cladding on residential/ commercial buildings within the scope of E2/AS1. They can be installed to the framing with brick ties system to form the cavity and veneer wall cladding of a building. (Refer to the Construction Details CD01 for design detail).

 

 

Limitations

Aubricks bricks are limited in its use by the restraints that apply in NZS 3604 Timber Frame Building, NZS 4229 Concrete Masonry Building does not requiring Specific Design and NZS 4210 Masonry Materials and workmanship in regards to the a installation of masonry veneer. The acceptable height limit of veneer wall above a concrete foundation to the mortar joint is up to 7.8m (for 70mm width bricks) and 14.5m (for 110mm width bricks).

 

Compliance with the NZBC

Aubricks Bricks are classified as acceptable solution in accordance with E2/AS1 and meet the requirements of New Zealand Building Code (NZBC). The product will, if employed in accordance with Aubricks’ installation and maintenance requirements, assist with meeting the following provisions of the building code:

Clause B2 Durability

Clause C3 Spread of Fire

Clause E2 External moisture

Clause F2 Hazardous building materials

 

In particular, the following tests are executed to verify the compliance:

  • Salt Attack Test: Tested in accordance with AS/NZS 4456.10:2003 – Complies with “Exposure” grade of salt attack resistance. Meets the requirements of the NZBC.
  • Efflorescence Test: Tested in accordance with AS/NZS 4456.6:2003
  • Compressive Strength Test: Tested in accordance with AS / NZS 4456.4: 2003. The result of Characteristic Unconfined Compressive Strength of Aubricks range has been proved as a lot higher than the required standard of the NZBC.

 

Supporting test reports inlcude: SGS New Zealand Ltd confirming the minimum level of assurance has been met or exceeded the New Zealand Building Code Compliance.

Our manufacturer also confirmed their production quality assurance complied with ISO9000 (Quality Management) Standard.

 

Durability

Aubricks Bricks are manufactured in accordance with NZBC Clause B2 for durability, based on the service history of masonry units in veneer construction using a drained and vented cavity, will have a serviceable life of at least the life of the building, and in excess of 50 years.

 

Installation

Aubricks Bricks must be installed in accordance with NZS 4210 Masonry Material and Workmanship. The veneer cladding is required to be installed using EM (Earthquake Medium) galvanized screw fixed bricks ties. The fixing of brick ties must satisfy the requirements of AS/NZS 2699.1:2000 for medium duty (EM) ties. Ties are to be installed every 400mm (max) vertically and 600mm (max) horizontally and must be embedded a minimum of 40mm into the mortar bed (NZS4210:2001). All masonry units shall be laid in mortar in courses, true to line, plumb, and level to the tolerances specified in table 2.2 of NZS 4210 / table 11.5 of NZS 3604. The builder must be strengthen the frame prior to the bricks being laid to avoid excessive impact on the veneer.

 

Maintenance

  • Carry out an annual inspection.
  • Check weep holes free from dust, dirt, spider webs and the like to ensure that moisture can continue to drain from the cavity.
  • If bricks or mortar are cracked, the cause must be determined (a structural engineer’s assessment is recommended) and repairs must be carried out to restore the cladding.

 

Warranty

Aubricks warrants that its products are manufactured in accordance with the New Zealand legislative requirements namely that they are fit for purpose and of merchantable quality. Please refer to the terms of trading regarding the extent of Aubricks liability pursuant to this warrant. Aubricks products have a serviceable life of at least the life of the building, and in excessive of 50 years. Any claim of non-compliance of the durability of the product should have physical and scientific evidence of the product itself. Quality on site for construction of the brick veneer is the responsibility of the building contractor and the bricklayer in accordance with the instructions of brick manufacturers. Early notification for any color variation or distortion should be communicated with Aubricks office before any laying happen.

NZ Bricks Supplier Aubricks Technical info 01 CONCRETE SLAB & FOUNDATION opt 1
CONCRETE SLAB & FOUNDATION opt 1

Weepholes every third perpend Damp Proof Course DPC
Recommend mortared slope with 2 coats Flintkote
D10 bars at 600 crs max. ht. 500mm D12 over 600 high
25mm min. To Paved Ground. 150mm min. To Upaved Ground
100mm min. To Paved Ground. 150mm min. To Unpaved Ground.

 

NZ Bricks Supplier Aubricks Technical info 01 CONCRETE SLAB & FOUNDATION opt 2
CONCRETE SLAB & FOUNDATION opt 2

Weepholes every third perpend Damp Proof Course DPC
Recommend mortared slope with 2 coats Flintkote
D10 bars at 600 crsmax. ht. 500mm D12 over 600 high
4 – D12 Horizontal with R6 @ 600 crs

 

NZ Bricks Supplier Aubricks Technical info 02 BRICK VENEER TYPICAL WALL SECTION
BRICK VENEER TYPICAL WALL SECTION

5 screw fixed ties per sq.m 600mm horizontally, 400mm vertically, or alternatives First brick tie within 400mm of the foundation
Hot-dipped galv. brick ties screw-fixed, select lenth for cavity width and brick size.

 

NZ Bricks Supplier Aubricks Technical info 03 FLAT SOFFIT DETAIL
FLAT SOFFIT DETAIL

Fibre cement sheet of H3 plywood soffit closure

 

NZ Bricks Supplier Aubricks Technical info 04 BRICK VENEER FLOOR REBATE DETAIL
BRICK VENEER FLOOR REBATE DETAIL

70mm AuBricks Brick Veneer
25mm to paved ground, 100mm to unpaved ground
100mm to paved ground, 150mm to unpaved ground

 

NZ Bricks Supplier Aubricks Technical info 05 flr rebate detail - below grd
REBATE DETAIL – BELOW GRD

70mm AuBricks Brick Veneer
DPC laid in middle of mortar course
2 Coats Flintkote on brick face below ground or polythene DPC

 

NZ Bricks Supplier Aubricks Technical info 06 CANTILEVER UPPER FLOOR

CANTILEVER UPPER FLOOR

Cladding Over Wall Underlay
Fibre cement sheet of H3 plywood soffit closure
Nogging for Soffit Installation

 

NZ Bricks Supplier Aubricks Technical info 07 DECK CONNECTION
DECK CONNECTION

70mm AuBricks Brick Veneer
Membrane Flashing on Angle 150mm Up Wall Cavity
Wall plated bolted to framing through 20mm timber packers

 

NZ Bricks Supplier Aubricks Technical info 08 WINDOW HEAD - ALUMINIUM
WINDOW HEAD – ALUMINIUM

Polythene flashing extended 150mm each side of opening (optional)
Weepholes at 800mm crs (optional)

 

NZ Bricks Supplier Aubricks Technical info 09 WINDOW SILL - ALUMINIUM
WINDOW SILL – ALUMINIUM

Flashing tape along entire sill, 100mm up jambs, and 50mm onto building wrap
Galv. metal or 200mm Supercourse 500 polythene flashing taken 200mm past opening

 

NZ Bricks Supplier Aubricks Technical info 10 WINDOW JAMB - ALUMINIUM
WINDOW JAMB – ALUMINIUM

Fix at this point leave flashing hanging in brick cavity
Water risistant Air Seal to perimeter of trim cavity
200mm Supercourse 500 polythene flashing, clout fixed over building paper

 

NZ Bricks Supplier Aubricks Technical info TOP OF ROOF SLOPE OPTION - TIMBER SUPPORT
TOP OF ROOF SLOPE OPTION – TIMBER SUPPORT

First ties in bottom mortar courses at 400crs. Next row within 315mm
Vent every third perpend Top edge of roofing material must be below mortar bed, to avoid debris blocking weepholes

 

AuBricks – Fire Rating System
Fire Rating System
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