Jan 12

QT Corners, Joints & Junction

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 coatrender. 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 Joint

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 joint

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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Jan 11

CSR Hebel Benefits

The many benefits of using Hebel PowerBlocks include:

Solid and strong:

Hebel PowerBlocks are made from Autoclaved Aerated Concrete (AAC), a strong, solid masonry building material with the advantage of being 25% the weight of conventional concrete.

Acoustic Performance: Significantly reduced sound transmission from room-to-room.

Thermal Resistance: Unique thermal properties result in a more stable inside temperature, reducing the energy required to heat and cool your home, thereby reducing energy bills.

Environmentally friendly: 73% less embodied energy and 61% less greenhouse gas emissions than comparative masonry products*. *Source: LCA Report GECA 2006.

Fire Protection: Non-combustible blocks with frameless construction deliver superior fire resistance. Hebel PowerBlock systems also allow you to build right up to your boundary line.

Pest resistance: Not a food source for termites or vermin and no cavity construction liminates the chance of harbouring pests.

Design Freedom: Hebel PowerBlock Wall Systems provide absolute freedom to design and build your ultimate dream home – without compromise.

Technical Support: Competent technical support through Hebel distributors.

Energy Efficiency

The unique combination of thermal resistance and thermal mass make building with Hebel
a smart choice for meeting Australia’s stringent building regulations.

The thermal performance of a building depends on a number of factors such as orientation and size and aspect of windows. The R-Value of walls and floors can significantly affect the energy-rating outcome of dwellings. A 250mm Hebel PowerBlock has 3 times the R-Value of a cavity brick wall (BCA Vol. 2 Figure 3.12.1.3). The use of Hebel in walls and floors will provide increased thermal performance that can allow more

flexibility with other design aspects of a building.

The thermal efficiency of Hebel systems will also reduce the reliance on heating and cooling appliances. The combined effects of running a heater less in winter and fans or air conditioning less in summer can have a big impact on energy costs and the environment.

Single Skin Construction

The AAC masonry constructed from Hebel PowerBlock products is called “Plain Masonry” and the blocks are masonry units referred to as a “Solid Unit”. The type of solid unit is “Autoclaved aerated concrete masonry unit” complying with AS/NZS 4455 – Masonry Units and Segment Pavers.The larger face dimension and being a single skin, Hebel PowerBlock walls are erected quickly when compared to double brick construction.

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Jan 09

Fixings for use with Hebel

LIGHT DUTY UP TO 20 kg

Door bell, light fittings, taps

Product Diameter Length Max.Load
Coarse thread screw 10 – 12g 50mm 25kg
Mungo Nylon Plug – MN4 4mm 20mm 2kg
Hilti impact anchor – HPS-1 5mm 30mm 3kg
Mungo Nylon Plug – MN5 5mm 25mm 4kg
Hilti impact anchor – HPS-1 6mm 40mm 4kg
Ramset Ramplug – nylon 5mm 25mm 5kg
Mungo Nylon Plug – MN6 6mm 30mm 6kg
Hilti impact anchor – HPS-1 6mm 50mm 6kg
Mungo Nylon Plug – MN7 7mm 35mm 7kg
Ramset Ramplug – nylon 6mm 30mm 8kg
Fischer – 4 expansion plug 8mm 40mm 8kg
Mungo Nylon Plug – MN8 8mm 40mm 9kg
Ramset Ramplug – nylon 7mm 35mm 12kg
Ramset Ramplug – nylon 8mm 40mm 16kg
Ramset Ramplug – long 6mm 55mm 16kg
Mungo Nylon Plug – MN10 10mm 50mm 20kg
Tox TFS-L fixings 6mm 50mm 20kg

HEAVY DUTY 50kg – 120kg
Grab rails, hose reels

Product Diameter Length Max.Load
Hilti-RE500 Injection adesive 8mm 80mm 50kg
Fischer Turbo plug 8mm 50mm 58kg
Mungo Nylon plug – MN16 16mm 80mm 60kg
Hilti-RE500 Injection adesive 10mm 90mm 70kg
Fischer Turbo plug 10mm 60mm 74kg
Hilti-RE500 Injection adesive 12mm 110mm 90kg
Mungo Nylon plug – MN20 20mm 90mm 100kg
Mungo Nylon Frame anchor 10mm 80mm 110kg
Mungo Nylon Frame anchor 10mm 100mm 110kg
Mungo Nylon Frame anchor 10mm 120mm 110kg
Mungo Nylon Frame anchor 10mm 200mm 110kg
Ramset Injection Mortar 10mm 130mm 120kg
Tox-KD-DV Heavy D Toggle 10mm 100mm 120kg
Tox-KD-DV Heavy D Toggle 10mm 200mm 120kg
Fischer Injection Mortar 8mm 80mm 121kg
Fischer Injection Mortar 10mm 80mm 125kg
Ramset Injection Mortar 12mm 160mm 125kg

MEDIUM DUTY 20-50
Large light fittings

Product Diameter Length Max.Load
Ramset Ramplug – long 8mm 65mm 22kg
Ramset Ramplug – nylon 10mm 50mm 25kg
Fischer 4 expansion plug 10mm 50mm 25kg
Fischer twist plug GB 8mm 50mm 25kg
Fischer Universal Frame fix 10mm 50mm 25kg
Tox Metal claw plug 6mm 32mm 25kg
Ramset Ramplug – long 10mm 80mm 27kg
Ramset Ramplug – long 12mm 95mm 28kg
Powers Zip-it 6mm 30mm 28kg
Hilti Frame anchor – HRD-U 10mm 80mm 30kg
Hilti Frame anchor – HRD-U 10mm 100mm 30kg
Tox-VLF Frame fixings 6mm 70mm 30kg
Ramset Ramplug – nylon 12mm 60mm 35kg
Tox Metal claw plug 8mm 60mm 35kg
Mungo Nylon plug – MN12 12mm 60mm 40kg
Fischer twist plug GB 10mm 55mm 40kg
Tox TFS-L fixings 8mm 70mm 40kg
Tox-VLF Frame fixings 8mm 100mm 40kg
Fischer Turbo plug 6mm 50mm 44kg
Mungo Nylon plug – MN14 14mm 70mm 50kg
Tox TFS-L fixings 10mm 70mm 50kg
Tox-VLF Frame fixings 10mm 135mm 50kg

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Jan 06

Hebel Construction Details – Tie-down

Required only if specified by design /project engineer.

Fig 15.1: Strip Footing, Double Brick Sub-Floor

Fig 15.2:  Strip Footing, Concrete Power Block Sub-Floor

Wall Length(mm) Min. No. of N12 Bars Ultimate Racking Capacity (kN)
150mm PowerBlock

250mm PowerBlock

900 2 5 6
1200 2 8 8
1800 3 16 18
2400 3 24 25
3000 4 36 38
3600 5 45 46
4800 6 54 56
6000 7 63 66

Tie down rods/engineering restraints must be embedded into the footing and pass up through the sub floor and into the Hebel PowerBlock work.

Table 15.1 Top-Plate & Hold-Down selection

Wind
Classification
Top Plate & Hold-Down
Tile Roof Sheet Roof
N1 A / B / C B / C
N2 A / B / C D / F
N3 D / F D / F
N4 D / F D / F
N5 E / G E / G
N6 E / G E / G
C1 D / F D / F
C2 E / G E / G
C3 E / G E / G
C4 G G
Legend
A 90×45 F7 timber top plate / 700mm deep strap @ 1200mm ctrs.
B 90×45 F17 timber top plate / 1700mm deep strap @ 2400mm ctrs.
C 90×45 F17 timber top plate / Ф12mm rod @ 2400mm ctrs.
D 90×45 F17 timber top plate / Ф12mm rod @ 1200mm ctrs.
E 90×45 F17 timber top plate / Ф12mm rod @ 900mm ctrs.
F 100x50x3.0 RHS top plate / Ф12mm rod @ 2400mm ctrs.
G 100x50x3.0 RHS top plate / Ф12mm rod @ 1200mm ctrs.

Fig 15.3 Hold Down Detail for Reinforced Bracing Walls

Table 15.2 provides ultimate racking capacities of reinforced 150mm and 250mm Hebel PowerBlock walls. The reinforcement is N12 bar or 12mm threaded rod at nominal 1000mm centres. The reinforcement must be tied to the footings and wall top plate through the bond beam.

Walls resisting racking forces should be evenly distributed within a house and spaced at a maximum of 8.0m. Ceiling and floor diaphragms must be adequately tied to walls to ensure transfer of forces through to the footings.

For more information about bracing, refer to Section 6.11 of the Hebel Technical Manual.

Fig 15.4 Roof Top to Plate Fixing to Hebel Wall – Strap (elevation)

Top Plate Hold-Down

Two tie-down methods are provided in this design guide.

1. Strap – 30×0.8mm cut into inside face of external wall min. 700mm deep.
2. 12mm threaded rod continuous from footing through bond beam to top plate.

Fig 15.5 Roof Top Plate Fixing to Hebel Wall-Tie-Down Rod (elevation)

Three top plates options are provided in this design guide:

1. 90×45 F7 timber
2. 90×45 F17 timber
3. 100x50x3.0 RHS

The type of hold-down method and spacing depends on the top plate, roof type/span, and wind classification. Refer to Table 15.1 for specifications. For high wind areas, the bracing design is likely to require tie-down rods which will drive that as the hold-down method.

Table  15.2 Reinforced Wall – N12 Bars at Nom. 1000mm CTRS

Wall
 Length
 (mm)
Min. No. of
 N12 Bars
Ultimate Racking Capacity (kN)
150mm PowerBlock 250mm PowerBlock
900 2 5 6
1200 2 8 8
1800 3 16 18
2400 3 24 25
3000 4 36 38
3600 5 45 46
4800 6 54 56
6000 7 63 66

Base of Wall

Fig 15.6 Hebel PowerBlock work on Stiffened Raft Slab Edge Foundation (elevation)

 Fig 15.7  Concrete PowerBlock Sub-Floor Detail (elevation)

 Fig 15.8  Double Brick Sub-Floor Detail (elevation)

Fig 15.9 Ring Beam Internal Non-Loadbearing Wall (elevation) (No tie down – as specified by design engineer)

Top of Wall

Fig 15.10 Roof Top Plate Fixing to Hebel Wall – Tie-Down Rod ( elevation)

Fig 15.11 Internal Hebel Load Bearing Wall and Timber Floor Frame Junction (elevation)

Wall Junctions

Fig 15.12  External Wall and Internal Partition Wall Junction  (plan).

Fig 15.13  External Corner with Control Joint (plan)

Control Joints

Fig 15.14 Control Joint detail (elevation)

Fig 15.15 Typical Bond Beam Control Joint – elevation (Location where no tie down required – as specified by engineer)

Fig 15.16 Typical Ring Beam Control Joint – elevation (Location where no tie down required – as specified by engineer)

Fig 15.17 Typical Control Joint – plan 

Fig 15.18 Hebel PowerBlock work Typical Movement Joint Detail (elevation)

Fig 15.19 Hebel PowerBlock work Typical Movement Joint Detail (plan)

Fig 15.20 Built-in Column Detail (plan)

Fig 15.21 Built-in Column Detail (elevation)

Appendix A – Carpet Installation

Panel Surface Preparation

Sweep the floor surface to remove debris and loose

particles. Expose all surface blemishes such as chips, cracks, gaps, ridges or the like. Fill all unacceptable locations with an appropriate and compatible patching compound such as Hebel Patch or levelling compound as required.

Ensure panels are then dry.

Carpet Smooth Edge Installation

Installation of Carpet Smooth Edge (Gripper) is to be in accordance with AS/NZS 2455.1:1995.

Installation of carpet gripper prior to laying carpet requires the use of specifically selected nails or course threaded screws. Standard fixings supplied with the carpet gripper are not suitable for fixing to Hebel PowerFloor panels. Carpet gripper strips are available without factory supplied nails. For carpet gripper installation near the panel edge, only glue is recommended. If relying on glue only, the carpet can not be stretched until the glue is set after approximately 24 hours.

Table A.1 – Carpet Smooth Edge Fixings

Fixing Type Description Application
Method
Installation Notes
Twist Nails 51mm dome
head twist nail
Coil Nail Gun
(Refer to Fig A.1)
The head of the twist nail
should finish flush with
the surface of the gripper
strip
Screws Type 17 point
– course thread
No. 8g x 50mm
– Countersinking
screw
Makita 6834
Auto Feed
Screwdriver
(Refer to Fig A.2)
The head of the twist nail
should finish flush with
the surface of the carpet
gripper strip
Screws Type 17 point Trimhead deck
Screw.
4.2 x 50mm
4.2 x 65mm
Quickdrive auto feed The head of the screw
should be flush with the
smooth edge

Fig A.1                       Fig A.2

Underlay Installation

Minimum medium duty underlay is to be used. No other special requirements.

Carpet Installation

As per carpet manufacturer’s guidelines.
No other special requirements.

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