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Benefits of QT EcoSeries

Introduction

This technical manual covers the QT EcoSeries Wall Panel, a masonry veneer wall cladding system with a cavity. The QT EcoSeries Wall Panel is a masonry panel that offers a solid substrate, can provide a wide range of finishes, has high thermal insulation and sound abatement, fire resistance and ease of construction. QT EcoSeries Wall Panels are manufactured from a material called ‘Conpolcrete’ which consists of a blend of cement and recycled polystyrene. Patent Pending.

1 Design

1.1 Material Properties

Width Length Thickness Weight
900mm X 2250mm X 50mm (nom 40kg (nom

• Total Square Metres per Panel = 2.0 m2.
• Number of 50mm Panels per Pallet = 23 panels
Pallet Weight:- 940kg (approx) (± 20 kg safety factor).
• Pallet Size – 900mm Width x 2250mm Length x Max. 1350mm Height (nom).

 

1.2 Thermal Performance

The Thermal performance of the QT EcoSeries Wall System is calculated in accordance with AS 2627.1 Thermal Insulation of Dwellings. QT EcoSeries Wall Panel has a k-value of 0.07 w/mk.

Wall System Composition

* Note: R-Values in table have been rounded up or down to the nearest R0.5 as permitted under AS 2627.1

1.3 Impact Resistance

QT EcoSeries Wall Panel when coated with a cement base render, can provide resistance for hard body impacts typically found under normal situations.
(Refer coating manufacturers for details).

1.4 Acoustic Performance

The QT EcoSeries Wall System was tested in accordance with AS/NZS 1276.1 for Airborne Sound Transmission and achieved STC41 and Rw41(-3;-8)(Wall Composition: 50mm QT EcoSeries Wall Panel with 30mm (nom) cavity on a 70mm x 35mm stud frame and 10mm plasterboard) CSIRO TL399. Acoustic performance can be significantly increased with the addition of bulk or acoustic insulation batts.

1.5 Fire Performance

QT EcoSeries Wall Panels when tested to AS/NZS 3837 and in accordance with BCA Specification C1.10a Section is classed as a GROUP 1 material.

1.6 Durability

In normal conditions and when maintained properly in a weatherproof condition, the cladding systems should exceed 30 years of trouble free serviceable life. When the system is installed in high corrosion zones, such as coastal locations within distances of up to 500m from the sea, particular care must be taken to ensure that openings through the cladding panels are kept to a minimum to prevent corrosive salt aerosols from entering the wall cavity and affecting metal components.
(Permitted openings are base weepholes, soffit vents and openings beneath window joinery at sills).

Wildlife Attack
The panels will not support growth of micro-organisms such as fungi or bacteria and do not hold any nutritional value for ants or rodents.

1.7 Cavity

Cavities form an important role in the weather tightness and life cycle of any wall system QT EcoSeries Wall Panels constructed without a cavity will void any warranty. The cavity acts as a secondary barrier against wind driven rain penetration entering the wall framing. The cavity also allows the wall to ventilate and drain which is essential for a healthy wall.

1.8 Vapour Permeable Sarking

Vapour permeable sarking must be installed to the face of the building framing prior to installation of the battens and panels. The vapour permeable sarking has two main functions, weather tightness and thermal resistance. In its weathertightness role it protects the building framing from direct contact with moisture generated by wind driven rain penetration, while allowing the condensation of moisture from interior artificial heating and cooling to escape. Thermally the vapour permeable sarking divides the wall into two separate air spaces, which significantly increases the thermal performance of the wall.

1.9 Weepholes

On the first horizontal course (ground level) weep holes are to be installed at centres not exceeding 1200mm immediately above any damp proof membrane or flashing. Weepholes are also required in areas where there is a possibility of moisture build up. Weepholes must be limited to 8mm in width to reduce the potential for vermin access.

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Construction Details QT EcoSeries

Slab & Floor

All foundations must comply with the relevant standards and local authority requirements, with appropriate consideration given to soil type. QT EcoSeries Wall Panel is suitable for construction on concrete slab or suspended floors. The concrete slab can either be rebated or non-rebated. The slab rebate will need to be a minimum of 50mm below floor level and 100mm above paved level or 150mm above ground level (See local standards). To ensure a flush finish, the width of the slab rebate needs to allow for the thickness of the coating system, the thickness of the panel (40mm or 50mm), and the size of the extended wall cavity 20 – 50mm (30mm nom). Minimum ground clearances, must be maintained at all times during the life of the building. Insufficient clearance from the ground to the bottom of the wall panels will affect long-term durability.

Termites

The Building Code of Australia in conjunction with AS 3660 specifies the requirement for termite risk management. (See local standards).
The edge of a slab-on-ground may be used as a visual perimeter barrier. Provided that the slab edge is left exposed not less than 75mm above finished ground or paved level. The face of the perimeter must not be concealed by a flashing, rendered, tiled or clad.
The exposed edge of the slab must be kept clean and free of debris and regularly visually inspected for termite activity. QT EcoSeries Wall Panel does not hold any nutritional value for ants or rodents.

Windows

Wherever possible windows and associated flashings should be installed prior to the installation of the QT EcoSeries Wall Panel.
When ordering the window frame it is essential to plan where the window flange will be positioned either flush with the stud frame, flush with battens or even over the panel.
All materials that are susceptible to deterioration due to plastics migration or alkalinity of cement base products must be protected (check with product manufacturer).

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Corners, Joints & Junctions QT EcoSeries

Internal & External Corners

Internal corners can be formed by continuing the QT FullMesh around the corner or by embedding a QT CornerMesh into the base coat render. External corners can be formed by embedding a QT CornerMesh into the base coat render or by fixing a corner bead prior to rendering.
In all cases the abutting corner panels must be bonded with polyurethane foam adhesive.

Relief Joints

Relief joints are required to accommodate any structural movement or panel movement due to temperature or moisture changes. If the panel above or below an opening is less than 300mm in depth or more than 2400mm in length the panel must be articulated by creating a vertical expansion joint to reduce and/or relieve the stress in the panel and coating system. All other corner openings must be reinforced with QT 45˚Mesh.
The QT 45˚Mesh helps prevent any 45˚hairline cracks forming from the corner of any opening.

Control joints

Control joints are designed to relieve structural movement between the wall cladding and building frame and also relieve any stress that builds up in the applied coating system. Vertical control joints are required at no greater than 5 metre centres (+ or – 500mm) in walls greater than 8 metres in length. Double studs are required at all vertical control joints. Vertical joints are best aligned with windows, doors, openings, or internal corners. Where timber floor joists are used a 15mm (nom), horizontal control joint must be provided at floor levels to allow for shrinkage and movement of the joists. 10mm control joints must also occur where the QT EcoSeries Wall Panels meet alternative wall claddings eg.
Weatherboard, brickwork, etc. On gable ends, a horizontal control joint will be required at the top plate of the wall so as to separate the gable wall from the wall below. Control joints can be formed with the use of a backing rod and sealant or by the installation of uPVC expansion bead.

Junctions

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Installation and Fixing QT EcoSeries

Panel fixings

Fix the QT EcoSeries Wall Panel onto timber battens or metal channels with galvanised 75mm x 3.15 or 3.75mm ring shank nails (timber battens only) or 10g x 75mm Class 3 (AS3566) screws (timber or steel battens) with the addition of QT Buttons in all cases. Panel fixings must be no closer than 50mm but no further than 112mm to the horizontal panel edge and no closer than 50mm to the vertical edge, while normal fixing centres are at 225mm maximum centres. It is essential that the vertical and horizontal butt joints be bonded with polyurethane foam adhesive. Also ensure polyurethane foam adhesive is applied to all batten faces prior to the panel being pushed against them for maximum bonding to the support frame. Panels can be joined off stud, if glued to the abutting panel with polyurethane foam adhesive. QT EcoSeries Wall Panels can span 225mm as an unsupported cantilever. Panels must span across a minimum of two channels or battens and must be installed in a horizontal stretcher bond pattern. To prevent corrosion from salt aerosols in high corrosion zones, (such as geothermal activity or within a 500m distance from the sea) upgrade fixing screws to class 4 or stainless steel (AS3566).

Framing

Timber framing must comply with AS 1684 and steel framing must be designed and constructed in accordance with AS 3623. Minimum distances from end and edge of timber framing members must be observed to avoid splitting. Stud spacing must not exceed 600mm centres. Noggings must be fitted between studs at 1350mm maximum centres.

With a 1.8 m spirit level, check for variations in the frame that are over 6 mm. Large variations negatively affect weather protection or can appear as visual defects under critical light conditions. If the frame is out of plumb, but not structurally defective, consult with the builder or contractor for remediation.

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QT EcoSeries Corners


Panel to Wall Sheet Junction
(AS-3.6.B)






Horizontal Expansion Joint
(AS-3.3.C)


Note
All panel fixings to be 10g x 75mm class 3 screws or 75 x 3.15 ø or 3.75 ø class 3 ring shank nails with QT®Buttons at 225mm centres as per technical manual section 2. Batten fixings should be class 3 and as section 2 of the technical manual.
Vertical Expansion Joint
(AS-3.4.B)


Note
All panel fixings to be 10g x 75mm class 3 screws or 75 x 3.15 ø or 3.75 ø class 3 ring shank nails with QT®Buttons at 225mm centres as per technical manual section 2. Batten fixings should be class 3 and as section 2 of the technical manual.
Panel to Brick Junction
(AS-3.7.B)


Note
All panel fixings to be 10g x 75mm class 3 screws or 75 x 3.15 ø or 3.75 ø class 3 ring shank nails with QT®Buttons at 225mm centres as per technical manual section 2. Batten fixings should be class 3 and as section 2 of the technical manual.

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QT EcoSeries Slab Construction


Note
All panel fixings to be 10g x 75mm class 3 screws or 75 x 3.15 ø or 3.75 ø class 3 ring shank nails with QT Buttons at 225mm centres as per technical manual section 2. Batten fixings should be class 3 and as section 2 of the technical manual.

Note
All panel fixings to be 10g x 75mm class 3 screws or 75 x 3.15 ø or 3.75 ø class 3 ring shank nails with QT Buttons at 225mm centres as per technical manual section 2. Batten fixings should be class 3 and as section 2 of the technical manual.

Note
All panel fixings to be 10g x 75mm class 3 screws or 75 x 3.15 ø or 3.75 ø class 3 ring shank nails with QT Buttons at 225mm centres as per technical manual section 2. Batten fixings should be class 3 and as section 2 of the technical manual.

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QT EcoSeries Window

 Note

All panel fixings to be 10g x 75mm class 3 screws or 75 x 3.15 ø or 3.75 ø class 3 ring shank nails with QT Buttons at 225mm centres as per technical manual section 2. Batten fixings should be class 3 and as section 2 of the technical manual.

Note
All panel fixings to be 10g x 75mm class 3 screws or 75 x 3.15 ø or 3.75 ø class 3 ring shank nails with QT Buttons at 225mm centres as per technical manual section 2. Batten fixings should be class 3 and as section 2 of the technical manual.

Note
All panel fixings to be 10g x 75mm class 3 screws or 75 x 3.15 ø or 3.75 ø class 3 ring shank nails with QT Buttons at 225mm centres as per technical manual section 2. Batten fixings should be class 3 and as section 2 of the technical manual.

Note
All panel fixings to be 10g x 75mm class 3 screws or 75 x 3.15 ø or 3.75 ø class 3 ring shank nails with QT Buttons at 225mm centres as per technical manual section 2. Batten fixings should be class 3 and as section 2 of the technical manual.

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QT EcoSereis Soffit

Soffit Type 1
(AS-6.1.B)

Soffit Type 2
(AS-6.2.B)

Flush Eaves
(AS-6.3.B)

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QT EcoSeries Doors

Roller Door Jamb
(AS-7.2.B)

Note

All panel fixings to be 10g x 75mm class 3 screws or 75 x 3.15 ø or 3.75 ø class 3 ring shank nails with QT®Buttons at 225mm centres as per technical manual section 2. Batten fixings should be class 3 and as section 2 of the technical manual.


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QT EcoSeries Wall to Roof

Wall to Roof – Type 1
(AS-8.1.B)

Note

All panel fixings to be 10g x 75mm class 3 screws or 75 x 3.15 ø or 3.75 ø class 3 ring shank nails with QT Buttons at 225mm centres as per technical manual section 2. Batten fixings should be class 3 and as section 2 of the technical manual.

Wall to Roof – Type 2
(AS-8.2.B)

Note
All panel fixings to be 10g x 75mm class 3 screws or 75 x 3.15 ø or 3.75 ø class 3 ring shank nails with QT Buttons at 225mm centres as per technical manual section 2. Batten fixings should be class 3 and as section 2 of the technical manual.

Wall Plates for Pergolas – Type 1
(AS-8.3.A)


Note
All panel fixings to be 10g x 75mm class 3 screws or 75 x 3.15 ø or 3.75 ø class 3 ring shank nails with QT Buttons at 225mm centres as per technical manual section 2. Batten fixings should be class 3 and as section 2 of the technical manual.

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