IBS OS’BRACE® RAP DESIGN & INSTALLATION GUIDE

® RAP E C A R B ’ S O IBS

Get Rigid

RIER SYSTEM R A B IR A ID IBS NO:1 RIG

IBS BUILDING PRODUCTS 1/7 Fraser Road, Panmure Auckland I P: 0800 367 759

AQ-000115-CMNZ (Rev 5, Dec 2017)

www.ibs.co.nz

AQ-000115-CMNZ (Rev.5, Dec 2017)

IBS OS’Brace® RAP

IBS Design & Installation Guide

TABLE OF CONTENTS PAGE 1. PURPOSE OF DOCUMENT..................................3 1.1 General...........................................................3 1.2 Supporting information..................................3 2. GENERAL.........................................................3 2.1 Use of IBS OS’Brace®RAP.................................3 2.2 Orientated strand board explained.................3 2.3 IBS OS’Brace® RAP explained..........................3 2.4 IBS OS’Brace® RAP CodeMark explained.........3 2.5 IBS OS'Brace® RAP advantages.......................3 2.6 Restricted building work.................................3 2.7 Install service penetration..............................3 2.8 Install window opening...................................4 2.9 Designer/installer skill level............................4 2.10 Health and safety..........................................4 2.11 Handling and storage....................................4 2.12 Sawing, drilling, shaping...............................4 3. IBS OS’BRACE®RAP AS A BRACING ELEMENT.......5 3.1 Scope of use....................................................5 3.2 Limitations......................................................5 3.3 IBS OS’Brace® RAP wall bracing system..........6 3.3.1 Bracing capacity...........................................6 3.3.2 System #1.....................................................7 3.3.3 System #2.....................................................7 3.3.4 System #3.....................................................7 3.3.5 System #4.....................................................8

2



TABLE OF CONTENTS..................................PAGE 3.3.6 System #5.....................................................8 3.3.7 System #6.....................................................9 3.3.8 System #7...................................................10 3.3.9 Lintel tie down details................................11 3.3.10 Top plate rafter or truss details.................11 3.3.11 Fixings......................................................11 3.3.11.1 General..................................................11 3.3.11.2 Bottom plate fixing................................11 3.3.11.3 Bottom plate fixing detail......................12 3.3.11.4 LVL System Installation Mitek CPC80.....12 3.3.11.5 LVL System Installation Simpson Strong-Tie...........................................................13 3.3.12 Mechanical connections...........................13 3.4 Joint sealing and window tape......................13 4. IBS OS’BRACE® RAP AS A RIGID AIR BARRIER....... 14 4.1 General.........................................................14 4.2 IBS OS’Brace®RAP a non-structural rigid air barrier......................................................14 5. AVAILABLE DETAILS........................................ 14 6. IBS OS’BRACE®RAP AS AN INTERNAL LINING.... 14 6.1 General.........................................................14 7. FINISHING...................................................... 15 8. QUALITY ASSURANCE..................................... 15 9. TECHNICAL PROPERTIES................................. 15 10. ADDITIONAL RESOURCES.............................. 15

www.ibs.co.nz

IBS Design & Installation Guide. V1.1. Dec 2017

IBS OS’Brace® RAP

Uncontrolled in printed format

1. PURPOSE OF DOCUMENT 1.1 GENERAL This document is intended for designers and installers to ensure that IBS OS’Brace® RAP (rigid air panel) is specified and installed correctly. 1.2 SUPPORTING INFORMATION This document must be read in conjunction with the: ■ IBS pass™ (Product Assurance Supplier Statement) for IBS OS’Brace® RAP ■ IBS Product Specification for IBS OS’Brace® RAP ■ IBS Maintenance and Warranty for IBS OS’Brace® RAP 2. GENERAL 2.1 USE OF IBS OS’BRACE® RAP IBS supply IBS OS’Brace® RAP for use: ■ As an internal or external wall bracing element when used in conjunction with a specific fixing system. ■ In exterior wall construction as an alternative to light or heavy weight wall wrap or where a rigid air barrier is required. ■ As an internal wall substrate where high impact use is envisaged. 2.2 ORIENTED STRAND BOARD EXPLAINED OSB (oriented strand board) is a moisture resistant, structural wood panel. Engineered in Germany from environmentally sustainable sourced softwood, it consists of three layers of wood strands bonded together with heat-cured adhesives. Each layer is orientated at right angles to the adjacent layer creating a strong, dimensionally stable panel that resists delamination and warping. The absence of natural imperfections such as knots provides certainty of performance. 2.3 IBS OS’BRACE® RAP EXPLAINED IBS OS’Brace® RAP has been manufactured specifically for NZ, for use as a bracing element and/or rigid air barrier. As an OSB/31 panel, manufactured in accordance with EN13986:2004, it is suitable for use in humid conditions where the panel in-service moisture content does not exceed 20%. It is supplied treated to hazard class H3.1, using a method where the chips themselves are treated prior to being bonded meaning that the panel is fully treated, in accordance with AS/NZS1604.2. Compliance with the NZ Building Code is established through Product Certification (CodeMark).

2.4 IBS OS’BRACE® RAP CODEMARK EXPLAINED IBS is the certificate holder of CodeMark for IBS OS’Brace® RAP. CodeMark is third party certification, allowed for under the Building Act 2004. This means that under law, a Building Consent Authority must accept the specification of IBS OS’Brace® RAP (the panel and the installation details) as complying with the NZ Building Code, providing that all conditions of the certificate have been met. Achieving CodeMark also focuses on the quality of IBS OS’Brace® RAP panels and the quality and competence of the support provided by IBS. This means that designers and installers can use IBS OS’Brace® RAP with confidence that, providing all instructions are followed, IBS OS’Brace® RAP will result in building work complying with the NZ Building Code. 2.5 IBS OS’BRACE® RAP ADVANTAGES IBS OS’Brace® RAP is a practical alternative to traditional flexible building wraps. The installation of EGGER OS’Brace® RAP allows the builder to enclose the exterior of the building quickly providing the following advantages: ■ Reduces building time ■ Provides rapid moisture protection of the building ■ Allows for interior construction to continue ■ Provides a greater level of site security ■ Reduces structural timber movement 2.6 RESTRICTED BUILDING WORK In some applications Restricted Building Work (RBW) provisions will apply. It is the responsibility of the designer and installer to ensure that they have met their obligations under these provisions. 2.7 INSTALL SERVICE PENETRATION Refer to IBS OS’Brace® RAP approved selection of flexible flashing tapes - see 3.4. Flashing of pipe and service penetrations shall be carried out in accordance with the following: ■ Pipe penetrations through IBS OS’Brace® RAP must have a minimum of a 5⁰ slope to the outside. ■ Flexible flashing tape must be installed like a bandage with a minimum of 25 mm cover around the pipe and 100 mm minimum surface adhesion to IBS OS’Brace® RAP panel surrounding the penetration.

IBS OS’Brace® RAP is 6.0 mm thick and supplied in the following panel sizes: ■ 2440 mm x 1198 mm x 6 mm ■ 2745 mm x 1198 mm x 6 mm ■ 3050 mm x 1198 mm x 6 mm

1

www.ibs.co.nz

Classification of OSB is defined in EN300:2006

3

IBS Design & Installation Guide. V1.1. Dec 2017

IBS OS’Brace® RAP

Uncontrolled in printed format

2.8 INSTALL WINDOW OPENING Refer to IBS OS’Brace® RAP approved selection of flexible flashing tapes - see 3.4. Flashing window openings shall be carried out in accordance with WANZ Guide to E2/ASI (6), substituting building wraps for IBS OS’Brace® RAP. ■ Cut the flashing tape for the sill at least 200 mm wider than the opening. ■ Fit the tape with the inner edge of the tape flush with the inside line of the framing and extend 100 mm up and down each jamb edge. ■ Ensure the tape is well adhered to the surfaces and fitted tightly to each corner. ■ Fully tape all window opening edges.

2.10 HEALTH AND SAFETY When installing IBS OS’Brace® RAP take all steps to ensure your safety and the safety of others. ■ Ensure that when cutting or drilling IBS OS’Brace® RAP that there is adequate ventilation or mechanical dust extraction. ■ Ensure the IBS OS’Brace® RAP is well supported when cutting or drilling the panel. ■ Appropriate close fit clothing should be worn at all times ■ Wear eye, ear and footwear protection when working with IBS OS’Brace® RAP. Site considerations ■ Selection of the right equipment for working from a height ■ Safe working with ladders and stepladders ■ Maintain a clear unobstructed work area For further information refer to: ■ The Absolutely Essential Health and Safety Toolkit ■ Worksafe New Zealand Quick Guide 2.11 HANDLING AND STORAGE Correct storage and handling in transport is essential for the protection of IBS OS’Brace® RAP. The following simple principles should be taken into account:

Min lap 150 mm in each direction

■ Strapping and shrink wrap should be removed immediately upon arrival at the installer’s storage area or on site. ■ IBS OS’Brace® RAP should be laid flat on timber bearers. The spacing’s between the timber should be no more than 800 mm. ■ If several pallets are stacked on top of each other ensure the storage bearers are in true alignment. ■ When stored outside ensure there is sufficient clearance between the ground and IBS OS’Brace® RAP to prevent moisture transfer and allow air circulation. Cover with a waterproof tarpaulin. ■ IBS OS’Brace® RAP must not be exposed to the weather for more than 3 months. ■ When manually handling IBS OS’Brace® RAP ensure the panels are lifted in the central third.

Typical window opening.

EGGER S'Brace® RAP

Flexible flashing tape (ref section 3.4)

2.9 DESIGNER/INSTALLER SKILL LEVEL Where IBS OS’Brace® RAP is specified and/or installed the designer/installer should have the appropriate skills, knowledge of the product and access to all IBS OS’Brace® RAP technical information (refer www.ibs.co.nz).

4

2.12 SAWING, DRILLING, SHAPING IBS OS’Brace® RAP panels may be sawn and shaped in the same way as solid wood, although carbide tipped cutters are recommended. If panels are to be installed in a visible location, ensure clean-cut edges with sharp tools, using a backing block to minimize break out. The feed rate should be slower than for solid wood.

www.ibs.co.nz

IBS Design & Installation Guide. V1.1. Dec 2017

IBS OS’Brace® RAP

Uncontrolled in printed format

3. IBS OS’BRACE® RAP AS A BRACING ELEMENT 3.1 SCOPE OF USE IBS OS’Brace® RAP may be used as a bracing element within the following scope: In wind zones: ■ Up to and including extra high. ■ Up to 2.5 kPa ULS where the building is specifically engineered. Building scope ■ New buildings: with timber wall framing complying with NZ Building Code . ■ In conjunction with the GIB HandiBrac® method or a Strap Bracing system. ■ In conjunction with LVL System - staples, Mitek CPC 80 and SPAX screws. ■ In conjunction with LVL System - staples, Simpson Strong-Tie DTT2Z and type 17 screws. ■ In conjunction with concrete and timber subfloor applications that comply with the NZ Building Code. ■ With all cladding types that comply with NZBC. ■ In conjunction with a drained and ventilated nominal 20mm cavity system. ■ With aluminium joinery complying with the NZ Building Code ■ IBS OS’Brace® RAP has not been tested as a structural bracing element in conjunction steel framing. IBS OS’Brace® RAP may be used as a bracing element in existing buildings, however in these cases IBS makes no claim as to the bracing value that will be achieved. If IBS OS’Brace® RAP is to be installed as a bracing element in existing timber framed buildings the following scope applies: ■ Existing timber framed buildings where the designer and/ or installer have assured themselves that the existing building is suitable for the intended building work ■ Existing concrete and timber sub-floor structures where the designer and/or installer have assured themselves that the existing building is suitable for the intended building work

■ Curved walls, minimum radius 2.5 m are allowable, the IBS OS’Brace® RAP panels must be fixed horizontally onto framing studs with spacing and stud centres dependent on the radius. ■ A proprietary 'Z' flashing must be installed at mid floor level where IBS OS'Brace® RAP is installed on multi levels. Serviceability of the joints may be affected if – at the time the timber framing is installed - its moisture content is greater than 18%. ■ For wall heights greater than 3050 mm horizontal wall joints are permitted, provided the panel joint is over solid blocking of the same gauge as the studs. ■ All joints, other than mid floor level, (vertical and horizontal) must be sealed with an IBS approved selfadhesive “flashing tape”. ■ A hole 100 x 100 mm maximum within an envelope of 100 mm from top and vertical edges and 200 mm from the bottom of the IBS OS’Brace® RAP panel will not affect the bracing capacity. Multiple holes of this size are permitted provided the centre lines of the holes are not closer than 600 mm. ■ Steel fixings and fastenings must be in accordance with table 4.1, NZS 3604: 2011. ■ IBS OS’Brace® RAP must be allowed to acclimatise for at least 48 hours prior to installation. When specifying IBS OS’Brace® RAP as a bracing element, the designer must take into account site specific conditions and the building with respect to, but not limited to, the following: ■ Environmental (exposure) zone ■ Wind zone ■ Wall bracing table for wind and EQ demand ■ Structural design loads ■ Structural framing requirements ■ Preparation of substrate ■ External envelope ■ Other materials likely to affect the performance of IBS OS’Brace® RAP

3.2 LIMITATIONS ■ Allow a minimum of 4 mm between panel joints to accommodate dimension movement. ■ Maximum spacings of wall studs must not exceed 600 mm centres with a minimum of 1 row of horizontal nogs (nogs not required for system #6 & #7). Where wall heights exceed 2.7 m an additional row of nogs must be added.

www.ibs.co.nz

5

IBS Design & Installation Guide. V1.1. Dec 2017

IBS OS’Brace® RAP

Uncontrolled in printed format

3.3 IBS OS’BRACE®RAP WALL BRACING SYSTEM 3.3.1 BRACING CAPACITY The following table provides the bracing value for the different systems: TABLE 1

CONCRETE SLAB

TIMBER FLOOR

System

Wind

EQ

Wind

EQ

SYSTEM 1: OSB - 300 mm x 2440 mm wall GIB HandiBrac® fixing 30 x 2.5 Galv clouts or 45 x 2.5 S/Steel annular grooved nails

56 BU/m

56 BU/m

56 BU/m

56 BU/m

SYSTEM 2: OSB - 1200 mm x 2400 mm wall 25 x 1.0 strap fixing, 25 mm S/Steel screws

134 BU/m

122 BU/m

120 BU/m

120 BU/m

SYSTEM 3: OSB - 1200 mm x 2400 wall GIB HandiBrac® fixing Galv clouts 30 x 2.5, 45 x 2.5 S/Steel annular grooved nails

101 BU/m

97 BU/m

101 BU/m

97 BU/m

SYSTEM 4: OSB - 2400 mm x 3000 mm wall GIB HandiBrac® fixing 30 x 2.5 Galv clouts

122 BU/m

125 BU/m

120 BU/m

120 BU/m

SYSTEM 5a - 400: OSB - 400 mm x 2400 mm wall, GIB standard 10 mm board on the inside, specific nailing pattern, GIB HandiBrac® fixing Galv clouts 30 x 2.5, 45 x 2.5 S/Steel annular grooved nails

110BU/m

124 BU/m

110 BU/m

120 BU/m

SYSTEM 5b - 600: OSB - 600 mm x 2400 mm wall, GIB standard 10 mm board on the inside, specific nailing pattern, GIB HandiBrac® fixing Galv clouts 30 x 2.5, 45 x 2.5 S/Steel grooved nails

142 BU/m

■ The allowable racking resistances for the IBS OS’Brace® RAP systems (type 1 – 4) are applicable to frames lined with IBS OS’Brace® RAP on one side only. ■ Panels must always be installed vertically. ■ Stud sizes and centres will vary depending on height load and loads ref: NZS3604:2011. ■ Specific LVL method - ref System #6 & #7. The systems may be used on walls of lengths different to those in TABLE 1 but this is limited to:

143 BU/m

120 BU/m

120 BU/m

SYSTEM 5c - 1200: OSB - 1200 mm x 2400 mm wall, GIB standard 10 mm board on the inside, specific nailing pattern, GIB HandiBrac® fixing Galv clouts 30 x 2.5, 45 x 2.5 S/Steel annular grooved nails

178 BU/m

157 BU/m

120 BU/m

120 BU/m

SYSTEM 6a - 600: OSB - 600 mm wall LVL wall framing. Mitek CPC80 angle brackets with 120 SPAX A9L screws. Panel fixing 45 x 1.5 mm staples.

74 BU/m

85 BU/m

n/a

n/a

SYSTEM 6b - 1200: OSB - 1200 mm wall LVL wall framing. Mitek CPC80 angle brackets with 120 SPAX A9L screws. Panel fixing 45 x 1.5 mm staples.

97 BU/m

104 BU/m

n/a

n/a

SYSTEM 7a - 400: OSB - 400 mm wall LVL8 double bottom and top plates, LVL8 or MSG8 vertical studs. Simpson Strong-Tie DTT2Z & M12 fixing, 2 x type 17 screws. Panel fixing 45 x 1.5 mm staples.

87 BU/m

74 BU/m

n/a

n/a

SYSTEM 7b - 800: OSB - 800 mm wall LVL8 double bottom and top plates, LVL8 or MSG8 vertical studs. Simpson Strong-Tie DTT2Z & M12 fixing, 2 x type 17 screws. Panel fixing 45 x 1.5 mm staples.

113 BU/m

131 BU/m

n/a

n/a

6

NOTE: ■ For all bracing systems no product substitution is allowed. Installation must be in accordance with these instructions. If these requirements are not met, IBS provides no assurance that the bracing capacity (claimed in this design and installation guide) will be achieved.

www.ibs.co.nz

■ Wall lengths no greater than twice the tested system length. ■ For walls greater than the tested system length multiply the length of the wall on a pro-rata basis, up to double the length of the system.

IBS Design & Installation Guide. V1.1. Dec 2017

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

. . . . .

.

.

. . . .

.

.

.

.

.

.

.

.

2440 mm . .

.

.

.

.

GIB HandiBrac® installed in. the . . corner .internal

.

.

.

.

.

.

. .

.

.

.

.

.

.

.

.

.

.

.

.

. 150 mm

. .

. .

. . . . .

.

2440 mm

. .

.

.

.

. . . .

.

.

.

300 mm

.

.

.

.

.

.

.

.

Straps must extend to a minimum of 150 mm past the bottom plate

. .

.. . . . . .. . . . . . . . . . .. .. . . .

. . . . .

. . . . .

.

.

.

.

.

.

.

.

. . . .

.

.

.

.

. . . . .

150 mm

.

600 mm

.

.

.

.

.

.

. . . . . . . . . . . . . . . . . . . . . . . . .. . .. . . .

.

.

.

.

.

.

.

.

. . . . .

FIG 2

.

.

.

.

.

.

GIB HandiBrac® installed in the internal corner

. . . . .

.

.

.

.

Straps must extend to a minimum of 150 mm past the bottom plate

.

.

.

.

.

.

.

.

.

.

.

.

.

. . .. . .

.

.

.. . .. . .

.

.

.

.

.

.

.

.

.

.

.

.

1198 mm

.

.

. .

.

.

.

.

2440 mm

.

. .

.

.

.

.

.

. . . . .

.

.

.

.

.

.

.

.

.

.

.

300 mm

. .

.

.

.

. . . . .

.

150 mm

. . . . .

.

. . . . .

.

.

600 mm

.

FIG 3

.

3.3.4 SYSTEM #3 SYSTEM 3 IBS OS’BRACE® RAP 1200 MM WALL USING GIB HANDIBRAC® - FIG 3 Wall construction: ■ 90 x 45 MSG8 studs (600 mm centres) plates, two rows of nogs*. ■ 6 mm IBS OS’Brace® RAP panel one side. ■ 30 x 2.5 mm galv clouts or 45 x 2.5 stainless steel annular grooved nails at 150 mm centres around the perimeter and 300 mm centre nogs. ■ GIB HandiBrac® hold down brackets fixed to each end-to -end studs and to the bottom plate with concrete holddowns. ■ Tested on a concrete floor with M12 hold down bolts.

.

.

.

. .

. . . .

3.3.3 SYSTEM #2 SYSTEM 2 IBS OS’BRACE® RAP 1200 MM WALL USING STRAP BRACE - FIG 2 Wall construction: ■ 90 x 45 MSG8 studs (600 centres) plates, two rows of nogs*. ■ 6 mm IBS OS’Brace® RAP panel one side. ■ 25 mm stainless steel screws at 150 mm centres around the perimeter and 300 mm centre nogs. ■ 25 x 0.9 mm straps around bottom plate fixed to each side of end studs with 6/30 x 3.15 bracket nails on each side of the stud. ■ Straps must extend to a minimum of 150 mm past the bottom plate. ■ Tested on a concrete floor with 2 x M12 hold-down bolts.

.

300 mm

. . . . .

.

.

.

.

.

.

.

.

. . . . .

3.3.2 SYSTEM #1 SYSTEM 1 IBS OS’BRACE® RAP 300 MM WALL USING GIB HANDIBRAC® - FIG 1 Wall construction: ■ 90 x 45 MSG8 studs (600 centres) plates, two rows of nogs*. ■ 6 mm IBS OS’Brace® RAP panel one side. ■ 30 x 2.5 mm galv clouts or 45 x 2.5 stainless steel annular grooved nails at 150 mm centres around the perimeter. ■ GIB HandiBrac® hold down brackets fixed to each end-toend studs and to bottom plate with concrete hold downs. ■ Tested on a concrete floor with M12 hold-down bolts.

FIG 1

.

.

.

IBS OS’Brace® RAP .

. . . . .

Uncontrolled in printed format

.

.

.

.

.

.

.

.

.

.

.

.

.

. . . . .

.

.

. . . . .

*

.

.

.

GIB HandiBrac® installed in the internal corner

GIB HandiBrac® installed in the internal corner

Nogs shall be spaced at not more than 1350 mm centres

www.ibs.co.nz

7

IBS Design & Installation Guide. V1.1. Dec 2017

.

.

.

.

.

.

.

.

.

.

.

.

.

1198 mm

600 mm

..

.

. .

..

. .

. .

.

.

..

.

..

.

.

.

. .

.

.

. .

.

.

.

.. .. .. .

.

.

. . . . . . .

.

.

. . . . . . . . . . . . . . . . . . ..

.

GIB HandiBrac® installed in the internal corner

.

.

.

.

.

.

.

Nogs shall be spaced at not more than 1350 mm centres

8

www.ibs.co.nz

.

. . . . .

300 mm

.

.

.

.

. . . . .

.

.

. . . . .

. . . . . . 150 mm

.

.

1198 mm GIB HandiBrac® installed in the internal corner

GIB HandiBrac® installed in the internal corner

FIG 5

.

.

.

.

.

. . . .

.

3050 mm

. . . .

.

.

.

.

.

.

.

. . . . .

300 mm

. . . . . .. . . . . . . . . . . . .

*

.

.

.

.

. . . . .

.

.

.

. . . . .

. . . .

. . . .

. . . . .

.

.

.

300 mm

. . . . .

150 mm

. . . . . . . . . . . .. . . .. . . . . . . . . . . . . . . . . . . . . . . . . . .. .. .. . . .

.

.

.

.

.

.

.

. . . . .

3.3.6 SYSTEM #5 (a,b,c) SYSTEM 5 IBS OS’BRACE® RAP 400, 600 OR 1200 MM WALL USING GIB HANDIBRAC®AND 10 MM STANDARD PLASTERBOARD ON THE INSIDE FIG 5 Wall construction: ■ 90 x 45 MSG8 studs (600 centres) plates, two rows of nogs*. ■ 6 mm IBS OS’Brace® RAP panel one side, standard 10 mm plasterboard®on the inside. ■ 30 x 2.5 mm galv clouts or 45 x 2.5 mm stainless steel annular grooved nails at 150 mm centres around the perimeter and 300 mm centre nogs. ■ GIB HandiBrac® hold down brackets fixed to each end studs and to the bottom plate with concrete hold downs as per manufacturer's specifications. ■ Tested on a concrete floor with 2 x M12 hold-down bolts.

.

. . . . . .

3.3.5 SYSTEM #4 SYSTEM 4 IBS OS’BRACE® RAP 2400 MM WALL USING GIB HANDIBRAC® - FIG 4 Wall construction: ■ 90 x 45 MSG8 studs (600 centres) plates, two rows of nogs*. ■ 6 mm IBS OS’Brace® RAP panel one side. ■ 30 x 2.5 galv clouts at 150 mm centres around the perimeter and 300 mm centre nogs. ■ GIB HandiBrac® hold down brackets attached to each end studs and to the bottom plate with concrete holddowns as per manufacturer's specifications. ■ Tested on a concrete floor with M12 hold down bolts.

FIG 4

.

.

.

.

.

.

. . Uncontrolled . in. printed format . . . . . . . . .

IBS OS’Brace® RAP

1198 mm

2440 mm

GIB HandiBrac® installed in the internal corner

IBS Design & Installation Guide. V1.1. Dec 2017

IBS OS’Brace® RAP

Uncontrolled in printed format

3.3.7 SYSTEM #6a SYSTEM 6a IBS OS’BRACE® RAP 600 MM WALL USING STAPLES - FIG 6 Wall construction: ■ 90 x 45 MSG8 or LVL8 studs (600 mm centres) no nogs required. ■ 90 x 45 LVL8 (or equivalent) H1.2 top and double bottom plates. ■ 6 mm IBS OS’Brace® RAP panel one side only. ■ IBS OS’Brace® RAP fixed with 45 x 1.5 mm staples at 150 mm centres, plus 1 x 75 mm at corner on stud and at 300 mm centres for central stud. ■ Mitek CPC80 angle brackets each end using 14g x 35/Type 17 screws, 4 to bottom plate and 4 to stud. ■ Upper bottom screwed to lower plate with 4/6 x 120 SPX A9L screws at 60 0, 2 each side of hold-down bolts. ■ M12 hold down bolts with 50/50 x 3 mm (or equivalent) washers to lower bottom plate. 3.3.7 SYSTEM #6b SYSTEM 6b IBS OS’BRACE® RAP 1200 MM WALL USING STAPLES - FIG 7 Wall construction: ■ 90 x 45 MSG8 or LVL8 studs (600 mm centres) no nogs required. ■ 90 x 45 LVL8 (or equivalent) H1.2 top and double bottom plates. ■ 6 mm IBS OS’Brace® RAP panel one side only. ■ IBS OS’Brace® RAP fixed with 45 x 1.5 mm staples at 150 mm centres, plus 1 x 75 mm at corner on stud and at 300 mm centres for central stud. ■ Mitek CPC80 angle brackets each end using 14g x 35 Type 17 screws, 4 to bottom plate and 4 to stud. ■ Upper bottom screwed to lower plate with 4/6 x 120 SPX A9L screws at 60 0, 2 each side of hold-down bolts. ■ M12 hold down bolts with 50/50 x 3 mm washers (or equivalent) to lower bottom plate.

FIG 6

600 mm

150 mm

2440 mm or 2745 mm or 3050 mm IBS OS’Brace® RAP fixed with 45 x 1.5 mm staples at 150 mm centre. Corner fixings at 75 mm from all corners in each direction. 75 mm each corner 75 mm each corner

Double MSG8, or equivalent, Mitek CPC80 angle brackets installed in internal corner. Bottom plates joined with 4/6 x 120 SPAX screws at 60 0. (2 each side of hold down bolts).

1198 mm

FIG 7 300 mm

150 mm

2440 mm or 2745 mm or 3050 mm

IBS OS’Brace® RAP fixed with 45 x 1.5 mm staples at 150 mm centre. Corner fixings at 75 mm from all corners in each direction.

75 mm each corner 600 mm Double MSG8, or equivalent, bottom plate Mitek CPC80 angle brackets installed in internal corner. Bottom plates joined with 4/6 x 120 SPAX screws at 60 0. (2 each side of hold down bolts).

www.ibs.co.nz

Staples at 300 mm centres for central stud

9

IBS Design & Installation Guide. V1.1. Dec 2017

IBS OS’Brace® RAP

Uncontrolled in printed format

3.3.8 SYSTEM #7a SYSTEM 7a IBS OS’BRACE® RAP 400 MM WALL USING STAPLES - FIG 8 Wall construction: ■ 90 x 45 MSG8 or LVL8 studs @ 400 mm centres, no nogs required. ■ 90 x 45 LVL8 (or equivalent) H1.2 top and double bottom plates. ■ 6 mm IBS OS’Brace® RAP panel one side only. ■ IBS OS’Brace® RAP one side fixed with 45 x 1.5 mm staples at 75 mm centres around the perimeter. ■ Simpson Strong-Tie DTT2Z brackets at each end 8/6 x 35 mm screws to studs. ■ Stud to bottom plate fixing with 2/Type 17 (4 x 75 mm) screws. ■ M12 hold-down threaded rod ChemSet™ to foundation wall. 3.3.8 SYSTEM #7b SYSTEM 7b IBS OS’BRACE® RAP 800 MM WALL USING STAPLES - FIG 9 Wall construction: ■ 90 x 45 MSG8 or LVL8 studs @ 400 mm centres, no nogs required. ■ 90 x 45 LVL8 (or equivalent) H1.2 top and double bottom plates. ■ 6 mm IBS OS’Brace® RAP panel one side only. ■ 6 mm IBS OS’Brace® RAP one side fixed with 45 x 1.5 mm staples at 75 mm centres around the perimeter. ■ Simpson Strong-Tie DTT2Z brackets at each end 8/6 x 35 mm screws to studs. ■ Stud to bottom plate fixing with 2/Type 17 (4 x 75 mm) screws. ■ M12 hold-down threaded rod ChemSet™ to foundation wall.

400 mm

FIG 8

75 mm

2440 mm or 2745 mm or 3050 mm

Double LVL8, or equivalent, Simpson Strong-Tie DTT2Z brackets installed in internal corner. Bottom plates joined with 8/ 6 x 35 screws. M12 hold-down threaded rod, ChemSet™ fixed.

IBS OS’Brace® RAP fixed with 45 x 1.5 mm staples at 75 mm centre.

800 mm

FIG 9

75 mm 300 mm 2440 mm or 2745 mm or 3050 mm

IBS OS’Brace® RAP fixed with 45 x 1.5 mm staples at 75 mm centre.

Double LVL8, or equivalent, Simpson Strong-Tie DTT2Z brackets installed in internal corner. Bottom plates joined with 8/ 6 x 35 screws. M12 hold-down threaded rod, ChemSet™.

10

www.ibs.co.nz

IBS Design & Installation Guide. V1.1. Dec 2017

IBS OS’Brace® RAP

Uncontrolled in printed format

3.3.9 LINTEL TIE DOWN DETAILS Where the uplift does not exceed 7.5kN, the following strap fixing detail may be used as an alternate to 7.5kN strap fixing detailed in NZ3604, fig 8.12.

Allowable uplift resistance (kN/rafter)

Fastener spacing (mm) top and bottom plates

7.5

80

8.5

40 min. 1200 mm

Top plate

Lintel, min 140 deep 6/50 x 2.8Ø nails

10/50 x 2.8Ø nails, prebored holes 2.5Ø. See pattern below Tension

Additional 50 x 2.8Ø between exisitng nails @ 150 c.c

IBS OS’Brace® RAP

Base fixing as per fig. 8.12 NZS3604 (2011)

15

15

15

28

10 7 15 min Bottom plate to floor or sub floor connection as per NZS 3604:2011 25 c/c min

3.3.11 FIXINGS 3.3.11.1 GENERAL

25 c/c min

15 min 45

45

Trim stud

Under stud

Edge of IBS OS’Brace® RAP

3.3.10 TOP PLATE TO RAFTER OR TRUSS CONNECTIONS Wind uplift loads are transferred to the wall panels via the rafter or truss to top plate connections. IBS OS’Brace® RAP sheathed wall frames transfer these uplift loads to the bottom plates; the IBS OS’Brace® RAP acting in tension as a continuous cycle rod. Refer to NZS3604:2011 Table 8.18 for uplift connections between top plate and roof framing. Rafter/ truss spacing is determined by the loaded dimensions. Top plate / stud mechanical fixings. Uplift top plate/stud mechanical connections in accordance with NZS3604: 2011 up to 7.5kN can be omitted where IBS OS’Brace® RAP and fixings are installed (top and bottom plates) at a maximum spacing of 80 mm.

Fixing

Exposure zone

Type 304 S/ Steel, Gauge 8 x 25 Surefix Screws

All exposure zones

45 x 2.5 S/Steel Annular Grooved Nails

All exposure zones

30 x 2.5 Galv Clouts, round head or D-Head

Exposure zone B & C only

45 x 1.5 mm staples

Exposure zone B & C only

3.3.11.2 BOTTOM PLATE FIXING Bottom plate fixing

Exposure zone

Strap Bracing M12 hold-down bolts with 50/50 x 3 mm washers

Steel fixing as per table 4:1 NZS3604:2011

GIB HandiBrac® Use supplied hold-down bolts

Steel fixing as per table 4:1 NZS3604:2011

Mitek CPC80 M12 hold-down bolts with 50/50 x 3 mm washers, 120 SPAX A9L screws.

Steel fixing as per table 4:1 NZS3604:2011

Simpson Strong-Tie DTT2Z, M12 holddown bolts, 50/50 x 3 mm washers

Steel fixing as per table 4:1 NZS3604:2011

www.ibs.co.nz

11

IBS Design & Installation Guide. V1.1. Dec 2017

IBS OS’Brace® RAP

Uncontrolled in printed format

3.3.11.3 BOTTOM PLATE FIXING DETAILS BASE DETAIL

3.3.11.4 LVL SYSTEM INSTALLATION MITEK CPC80/SPAX A9L SCREW - CONCRETE FLOOR

M12 x 100 screwbolt plus 50/50 x 3 mm or equivalent washer

Interior lining

15 mm 40 mm

IBS OS’Brace® RAP

55 x 15 mm notch in running bottom plate

CPC80 angle bracket/type 17 screws, 4 to bottom plate and 4 to stud

4/6mm x 120 mm SPAX (full threaded & cut point) at 60 0

Damp proof course 6 mm gap or provide water proof membrane between concrete slab or block masonry Bottom plate detail to concrete or timber floor (with 25 mm x 1 mm strap) 4 or 6 nails per LEG as specified 100 mm maximum

DPC

100 mm maximum 30 45 mm 45 mm 30

Cyclone Strap fixed to side eg: QHS6

GIB HANDIBRAC® INSTALLATION - CONCRETE FLOOR External walls

Position IBS OS’Brace® RAP as close as practicable to the internal edge of the bottom plate.

Foundation & reinforcing by others

Internal walls

Position IBS OS’Brace® RAP at the stud/plate junction.

IBS OS’Brace® RAP

10 mm plasterboard as per manufacturer installation guide

H1.2 treated 90 x 45 SG8 or LVL8 framing

Insulation

LVL8 wall bottom plate

LVL8 45 x 90 running bottom plate DPC

40 mm 15 mm

GIB HANDIBRAC® INSTALLATION - TIMBER FLOOR External walls

4/6 mm dia x 120 mm (full threaded & cut point) at 60 0. Screws can be screwed from either side of the wall

Internal walls

60 mm 6 mm anticapillary gap

Position IBS OS’Brace® RAP in the centre of the perimeter joist or bearer.

12

Position IBS OS’Brace® RAP in the centre of the floor joist or full depth solid block.

www.ibs.co.nz

M12 x 100 screwbolt plus 50/50 x 3 mm or equivalent washer @ 900mm crs

Foundation & reinforcing by others

IBS Design & Installation Guide. V1.1. Dec 2017

IBS OS’Brace® RAP

Uncontrolled in printed format

3.3.11.5 LVL SYSTEM INSTALLATION SIMPSON STRONG-TIE DTT2Z/ 2 TYPE 17 - CONCRETE FLOOR IBS OS’Brace® RAP

H1.2 treated 90 x 45 MSG8 or LVL8 framing LVL8 bottom plate nailed with 2 /3.15 x 90 stud

3.3.12 MECHANICAL CONNECTIONS (UPLIFT & HOLD DOWN) Connections

Exposure zone

10 mm plasterboard as per manufacturer installation guide. Pocket into plasterboard to fix hold-down.

Cyclone ties (304-2B Stainless Steel) Nails SS 30 mm x 3.15 mm in diameter

all exposure zones

1 x 25 - Sheet Brace Strap (304-2B Stainless Steel) Nails SS 6/30 x 3.15 diameter nails per strap end for 6kN capacity, 2 straps for 12kN

all exposure zones

Simpson StrongTie DTT2Z

GIB HandiBrac® https://www.gib.co.nz/products/ fasteners-and-brackets/gib-handibrac/

all exposure zones

Cyclone Ties (G300 Z275 Galvanised Steel) Nails 30 mm x 3.15 mm in diameter

exposure zones B & C only

1 x 25-Sheet Brace strap (G300 Z275 Galvanised Steel) Nails 6/ 30 x 3.15 diameter nails per strap end for 6kN capacity, 2 straps for 12kN

exposure zones B & C only

Mitek angle bracket CPC80 - 1.55, G300, Z275, 16 x 30 mm x 3.15 mm dia. 8/Type 17, 14g x 35 hex head

exposure zones B & C only

Simpson Strong-Tie DTT2Z - 1.74 mm, G-185, 8 x 6 mm dia x 40 screws, M12 galv. threaded rod, ChemSet

exposure zones B & C only

LVL8 45 x 90 running bottom plate

DPC 6 mm anticapillary gap M12 x 200 mm galv. threaded rod 48 Foundation & reinforcing by others

2 /Type 17 (4 mm x 75 mm)

Simpson Strong-Tie DTT2Z fixed with 8 screws SDS 6Ø x 38 mm Strong-Drive and one M12 bolt embedded with 100 mm minimum into 14 diameter hole in concrete with Ramset Epcon C6, with 35 x 2.5 mm square washer refer to bracing plan for location

DPC

Foundation & reinforcing by others

8/6 mm x 30 mm screws

3.4 JOINT SEALING AND WINDOW TAPE FOR IBS OS'BRACE® RAP The following tapes may be used to seal panels: Approved joint and window tape (minimum face cover 50 mm) Hydro Tape (masons 75 mm)

www.mpb.co.nz/product/hydrowindow-tape

40 Below

www.mpb.co.nz/product /40below-2

SUPER-STICK (Marshall Innovations)

www.mwnz.com/super_stick

TESCON EXTORIA IBS-OS (Pro Clima)

www.proclima.co.nz/tescon-extoraweathertightness

Watertight

www.technoinsulation.com/window-flashing-tapes

FlameFlash

www.technoinsulation.com/window-flashing-tapes

Dristud Cool Tape

www.dristud.co.nz/product/9/dristud-cool-window-flashing-tape

Dristud Bozz Tape

www.dristud.co.nz/product/6/dristud-bozz-window-flashing-tape

The tape is to be installed in accordance with the specific supplier instructions.

www.ibs.co.nz

13

IBS Design & Installation Guide. V1.1. Dec 2017

IBS OS’Brace® RAP

Uncontrolled in printed format

All joints and penetrations must be sealed including: ■ Vertical and horizontal joints ■ External and internal joints ■ Penetrations ■ Window and door joinery Where sealing a joint, ensure the IBS OS’Brace® RAP joins are centred under the tape joint. Use a 25 mm hard PVC roller to ensure full adhesion. 4. IBS OS’BRACE® RAP AS A RIGID AIR BARRIER 4.1 GENERAL Applied to the outer face of the exterior framing, IBS OS’Brace® RAP will minimise the pressure difference across the wall construction, thereby forming part of a weathertight external envelope. When installed in accordance with Section 3, IBS OS’Brace® RAP performs the function of a rigid air barrier with bracing capacity. 4.2. IBS OS’BRACE® RAP AS A NON-STRUCTURAL RIGID AIR BARRIER Where OS’Brace® RAP is to be used as a rigid air barrier without a bracing function then the scope of use is increased to include lightweight steel framing provided that a thermal break is installed. IBS OS’Brace® RAP panels should be nailed off at a minimum of 300 mm centres around the perimeter and through the body of the sheet including the horizontal nogs. Rigidity of the panels will be maximised if the panels are nailed off around the perimeter at 150 mm. Not applicable for systems #6 and #7. All other installation details to be in accordance with section 3 (IBS OS’Brace® RAP as a bracing element). Where all joints (vertical and horizontal) are to be sealed with an IBS approved self-adhesive “flashing tape” (see 3.4), building wrap is not required. IBS OS’Brace® RAP must be allowed to acclimatise for at least 48 hours prior to installation. When specifying IBS OS’Brace® RAP as a rigid air barrier, the designer must take into account site specific conditions and the building with respect to, but not limited to, the following: ■ Environmental (exposure) zone ■ Wind zone ■ Wall bracing table for wind and EQ demand ■ Structural design loads ■ Structural framing requirements ■ Preparation of substrate ■ External envelope ■ Other materials likely to affect the performance of IBS OS’Brace® RAP

14

5. AVAILABLE DETAILS IBS supply a number of details to assist in the specification of IBS OS’Brace® RAP. These details are available in dwg, pdf and jpg formats. Details available are as follows: ■ 1210 frame layout ■ 1211 frame layout brick ■ 1212 frame layout sheet plaster ■ 1213 frame layout EIFS plaster ■ 1214 frame layout weatherboard ■ 1220 joints vertical joint ■ 1227 joints horizontal ■ 1230 corners external corner ■ 1231 corners internal corner ■ 1250 floor concrete floor edge direct fix ■ 1251 floor concrete floor edge cavity ■ 1255 floor connections ■ 1260 openings lower corner treatment ■ 1261 openings upper corner treatment ■ 1262 openings window head ■ 1263 openings window sill ■ 1264 openings window jamb ■ 1265 window head ■ 1266 window sill ■ 1267 window jamb ■ 1269 openings pipe ■ 1270 wall soffit ■ 1281 balustrade Refer to www.ibs.co.nz. 6. IBS OS’BRACE® RAP AS AN INTERNAL LINING 6.1. GENERAL IBS OS’Brace® RAP can be used as a substrate wall panel for internal walls and partitions where additional stiffness is required or where walls are exposed to high impact. The following fixings are recommended: Maximum fastener spacing

Maximum fastener spacing from board’s edge

Centres at edges (on board’s perimeter)

Centres at the intermediate supports

Centres at the intermediate supports

Centres at the intermediate supports

Nails/screws

150 mm

300 mm

10 mm

25 mm

Staples System #6

75 mm

150 mm

20 mm

25 mm

Staples System #7a

75 mm

n/a

10 mm

n/a

Staples System #7b

75 mm

300 mm

10 mm

25 mm

www.ibs.co.nz

IBS Design & Installation Guide. V1.1. Dec 2017

IBS OS’Brace® RAP

Uncontrolled in printed format

7. FINISHING Where used as a bracing element or rigid air barrier, IBS OS’Brace® RAP must not be left exposed for more than 90 days. A 20 mm ventilated cavity and the cladding/joinery system must be installed that complies with the NZ Building Code. Installation of the cavity, cladding, joinery etc must be in accordance with the relevant supplier and in accordance with the Building Consent, where applicable. Where used as an internal lining it must be coated with a paint or stain system (not water based) or covered with another self supporting lining (such as plasterboard). 8. QUALITY ASSURANCE IBS recommends that installers record the installation of IBS OS’Brace® RAP. This may include: ■ Packing slips to show evidence of delivery ■ Written notes, and ■ Meaningful photos

10. ADDITIONAL RESOURCES For compliance information of IBS OS’Brace®RAP refer to: ■ IBS pass™ (Product Assurance Supplier Statement) Information to help with the design and specification of IBS OS’Brace®RAP refer to: ■ IBS Product Specification ■ IBS Design & Installation Guide ■ IBS CAD drawings For the DIYer refer to: ■ IBS Home Builder Info Sheet Information to help with the maintenance of IBS OS’Brace®RAP refer to: ■ IBS Maintenance Our warranty for IBS supplied IBS OS’Brace®RAP refer to: ■ IBS Warranty

9. TECHNICAL PROPERTIES Mechanical Properties

Standard

Board thickness

Unit

Requirement

[mm]

6,0

Density

EN 323

[kg/m3]

≥600

Internal bond

EN 319

[N/mm2]

≥0,34

Internal bond after cycle test

EN 321

[N/mm2]

≥0,18

Bending strength major axis

EN 310

[N/mm2]

≥22

Bending strength after cycle test major axis

EN 310

[N/mm2]

≥9

Bending strength minor axis

EN 310

[N/mm2]

≥11

Modulus of elasticity major axis

EN 310

[N/mm2]

≥4500

Modulus of elasticity minor axis

EN 310

[N/mm2]

≥1800

Swelling in thickness 24h

EN 317

[%]

≥15

Tolerance of the mean density

EN 323

[%]

±15

Moisture content *1

EN 322

[%]

2 - 12 grade 100

Sanding grade Formaldehyde content*2

EN 120

[mg/100]

≤8,0

www.ibs.co.nz

ABOUT IBS

Independent Building Supplies (IBS) has been distributing panel products around New Zealand since 1993. Our focus is on sourcing the best panel products available from around the world from sustainable renewable resources. IBS products are supported by full technical literature and support providing our customers with the Best Products, the Best Service, and the Best Experience.

15

1/7 Fraser Road, Panmure Auckland I P: 0800 367 759

www.ibs.co.nz