Outback Curved

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CURVED ROOF ATTACHED PATIO

STRATCO OUTBACK ASSEMBLY INSTRUCTIONS. ®

Your supplementary guide to building an

ATTACHED CURVED ROOF VERANDAH or PATIO

This set of instructions should be used in conjunction with the Stratco instruction brochure‘Flat Verandahs Attached - Your complete guide to building an Attached Outback Verandah,Patio or Carport'.

BEFORE YOU START

Carefully read these instructions, along with the “Stratco Flat Verandahs Attached”Instructions. If you do not have all the necessary tools or information, contact Stratcofor advice. Before starting lay out all components and check them against the deliverydocket. The parts description identifies additional curved roof parts, and thecomponent layout diagram indicates their fastening position.



141

PANEL STRIPSDecorative strips fixed toinfill panels.

INFILL PANELCut to suit curved endframes.

BEAM TO BEAM BRACKET

BEAM FILLER

Connects horizontalbeams.

Fills gapbetweenintersectingbeams.

POST BRACKET

POST CAP

Connects postto beam.

Fills gap betweenpost and beam.

HEADER FLASHINGSRun along header beam toneatly finish the base of infill panels.

PURLINSProvide support for cladding,on a Multispan Curved unit.

CURVED RAFTER TOHEADER BRACKETConnects curved rafters toheader beam on a MultispanCurved unit.

SOAKER FLASHINGWater proofs the rear of the curved unit andconceals the existinghouse gutter.

PARTS DESCRIPTION

SCREWS AND RIVETSFastener types vary dependingupon the connection, ensurecorrect fixings are used.

14 x 95

12 x 20RIVET

CURVED RAFTERTO VALLEYBRACKETFastens thecurved rafter to the valleybeam.

BOLTSFastener types vary dependingupon the connection, ensurecorrect fixings are used.

M10 HEX

HEAD BOLT

M12 HEX

HEAD BOLT

CUPHEAD

BOLT

SPACERSUsed to prevent the 150attachment beam fromcrushing.

CURVEDRAFTERSConsist of pre-cut100mm RHS.

CURVED BARGE CAPCovers the areawhere the roofingfinishes at curvedframes on aMultispan Curvedunit.

Please note that the Stratco Outback kit does not include any brackets or fixings to attach the unit to an existing structure, or concrete / masonaryanchors forcolumninstallation. If required they must bepurchased asadditional items.

ADDITIONAL MATERIALS

BEAM CAPPINGFixed to the top of the valleybeam to provide support for the Outback Deck on aClearspan Curved unit.

CURVED GUTTERSCovers the areawhere the deckfinishes at thecurved frame on aClearspan Curvedunit.



15

2MULTISPAN COMPONENT LAYOUT

7

8

9

6

5

4

3

2

1 Outback Deck

Polycarbonate Sheet, or CGI

Notched Beam Filler

Beam End Cap

Purlin

Curved Rafter

Valley Beam

Beam to Beam Bracket 14

17

13

12

11

10

Curved Rafter to Valley Bracket

Curved Barge Cap

Post Bracket

Post

Front Fascia Beam

Side Fascia Beam

Gutter and Gutter Stop End

Post Cap

18

Curved Rafter To Header Bracket

Header Beam

CURVED WITH INFILL

1

2

3

4

5

6

7

8

9

10

12

11

13

15

14

Figure 1

MULTISPAN CURVED FRAME

Figure 2

MULTISPAN CURVED FRAME WITH INFILL

1

2

3

4

5

17

10 12

11

18

15

14

16

16



3CLEARSPAN COMPONENT LAYOUT

7

8

6

5

4

3

2

1 Outback Deck

Curved Rafter

Curved Rafter to Valley Bracket

Curved Gutter

Valley Beam

Front Fascia Beam

Beam Capping

13

15

12

11

10

9

Notched Beam Filler

Post Bracket

Beam End Cap

Post Cap

Post

Gutter Stop End

Gutter

Header Beam

CURVED WITH INFILL

14

3

9

1

45

6

10

14

13

12

2

15

Figure 4

CLEARSPAN CURVED FRAME WITH INFILL

Figure 3

CLEARSPAN CURVED FRAME

3

9

1

45

6

7

10

8

11 14

13

12

2



4

1.0 INTRODUCTION

2.0 ATTACHING TO AN EXISTINGSTRUCTURE

2.1ATTACHINGONSIDE TOHOUSE

2.1.1 RAFTER STRENGTHENING

Please read these assembly instructions thoroughly beforecommencing the construction. Double check alldimensions, levels and bolting locations before cutting,screwing or bolting structural members. It is recommendedthat the persons erecting the structure have had some

previous building experience because some modificationsto theexistinghouse structureare required.

The builder or council is to ensure the existinghouse/structure is of a suitable structural integrity andcomplies with all the relevant Australian Building codesand standards. For more information regarding thesuitability of the house structure to accommodate theStratco Attached Curved unit, consult a structural engineer or a building authority. It is the builder’s responsibility toensure that the existing house roof structure isstrengthened correctly.

Refer to Section 2.1 if attaching the Stratco Curved unit onit’s side to a house, Section 2.2 if attaching on it’s end to ahouse or refer to both sections if attaching the unit on it’sside and end.

A Stratco Curved unit attached on it’s side to a house is

attached to the existing eaves overhang at the fascia, or toanexistingwall if height permits.

The first objective in the construction is to fix a structuralside beam along the fascia or wall, to which the curved unitis attached.

Most existing houses have not been designed for theattachment of curved frames to the fascia, thereforeadditional strengthening of the house rafters must beperformed.

In order to strengthen the existing house rafters, the roof

tiles or roof sheets need to be lifted to expose the roof frame. Steel rafter brackets and channels are then boltedalong thehouserafters.Refer toSection2.1.1.

A 150 mm Outba beam is bolted to the strengtheningbrackets at the fascia. Once the 150 attachment beam issecured to the house, the curved unit can be erected andfastened to thebeam.

The first step is to determine the number of rafters which

need to be strengthened and their location relative to theunit. You will have to lift some roof tiles or roof sheets todiscover the rafter positions and spacings. The number of rafters which need to be strengthened is determined by thebuilder, however spacing is recommended not to exceed1200mm.

ck

Note: It is the builder’s responsibility to ensure the existingrafters and fascia are adequately reinforced andstrengthened to accommodate any additional attachedstructure. The reinforcing method must be approved by theappropriatecouncil orengineer.

It is recommended an adjustable rafter strengtheningbracket is used inconjunctionwith anextension channel,asshown inFigure6.

The adjustable rafter strengthening bracket is shown inFigure 5. Please note that this bracket may not be suitablefor applications where the front face of the house gutter ishigher than 120 mm. In these cases please contact Stratcoforalternative solutions.

Fixing Rafter Strengthening Brackets andChannels

The adjustable rafter strengthening bracket allows for anadjustment of pitch in the range of 15 to 30 degrees. Thedistance the bracket extends past the fascia is alsoadjustable to allow forstandardgutters orboxgutters with awidth ofupto 200mm.

In conjunction with rafter strengthening brackets a channel

is fixed to the sideof the house rafter (Figure 6). The bottomend of the channel must be located at the baseof the houserafter. Holes should be marked and pre-drilled in thechannel to suit the location of existing holes in the bracket.The channel will extend beyond the bracket so additionalholes are to be drilled in the channel at approximately500mmcentres.

ADJUSTABLE RAFTER STRENGTHENINGBRACKET 5

RAFTERSTRENGTHENING

BRACKET

M12 BOLT

TIMBER RAFTER

60x44x2.0 G450 GALVANISEDCHANNEL

6



5

Initially the bracket T piece shall be fixed to the bracket armwith two M12 cup head bolts (hand tighten only), a springwasher is to be located between the standard M12 washer and nut(Figure7).

Mark the position of the bracket on the fascia and notch arectangular hole in the fascia allowing the bracket to be fedthrough the front of the fascia. The hole may need to beenlarged slightly if theM12cuphead bolts interferewith thefascia.

Insert the bracket through the fascia and fix with thechannel to the house rafter using M12 hex head boltsthrough the existing holes in the bracket and further up thechannel (Figure 11).

Adjust the T piece so it is horizontaland has the appropriate

extension past the fascia to allow for fixing of theattachment beam. T piece connection bolts are to betightened toa minimum 35Nm torque.

Fix the bracket asclose to the baseof the gutteraspossible(recommended distance 10mm from lowest end of gutter),as shown in Figure 8 for a Multispan Curved unit, andFigure9 fora ClearspanCurved unit.

The 150 attachment beam is to be fixed to the end plate toensure theroof sheetsextend into theexisting housegutter (Figure 8 for a Multispan Curved unit, Figure 9 for aClearspan Curved unit).

Fixingthe 150AttachmentBeaminPlace

After fixing all the brackets and channels, the 150attachment beam is fixed in place. For a Multispan Curvedunit the 150 attachment beam will need to be propped inposition with the double thickness on top and must belocated at a height on the bracket which allows clearancebetween the curved roof sheets and the gutter. For theClearspan Curved unit the 150 attachment beam will needtobepropped inpositionwith the beamcapping on top,withthe beam adjusted to achieve a minimum fall of 1 in 60towards thefrontof theunit.

Fix the 150 attachment beam to the end plates of the rafter bracket using two M12 bolts, with the bolt head on the 150attachment beam side. Insert spacers to prevent the beamfrom crushing, and bolt in position, using nuts and washers(only usewashersto theinside face of thebeam).

Do not over tighten bolts as this can lead to a visibleindentation due to the high gloss nature of the material.Refer toFigure10 for fixing spacers.

To insert spacers drill 13 mm holes through the 150attachment beam. Thendrill 16mmholeson theinsidefaceonly, ie, this time do not drill all the way through. This will

allow the spacer to slide in from the inside and stop at theotherside asshown inFigure10.

Note:

7

BRACKET ARMT PIECE

TIGHTEN TO 35NmTORQUE

M12 WASHER

M12 SPRING WASHER

M12 NUTM12x40 CUP HEADBOLT

CURVEDRAFTER

ENOUGH CLEARANCE FORROOF SHEETS TO DRAIN INTO

THE HOUSE GUTTER

FIX BRACKET AS CLOSEAS POSSIBLE TO THE BASE

OF THE GUTTER

RAFTERSTRENGTHENING

BRACKET

CGI OR POLYCARBONATE

150 ATTACHMENTBEAM

MULTISPAN CURVED UNIT

CURVEDRAFTER

9

ENOUGH CLEARANCE FORROOF SHEETS TO DRAIN INTO

THE HOUSE GUTTER

FIX BRACKET AS CLOSEAS POSSIBLE TO THE BASE

OF THE GUTTER

RAFTERSTRENGTHENING

BRACKET

OUTBACK ROOF SHEET

150 ATTACHMENTBEAM

108

BEAM CAPPING(CLEARSPAN ONLY)

BEAM CHANNEL(CLEARSPAN ONLY)

150 ATTACHMENTBEAM

SPACER

NUT

RAFTERSTRENGTHENING

BRACKET

M12 BOLT

DOUBLE FLANGE

ENLARGED HOLE(16 MM THIS SIDE ONLY)13 MM HOLE

WASHER

CLEARSPAN CURVED UNIT



6

Acover flashingmay be orderedas an additionaloptionandcustom made to cover the exposed brackets and holesthrough the fascia.

Rivet the flashing in place, Figure 12 suggests a simplifiedflashing, however you may decide to use your imaginationand designa flashing that suitsyour individual taste.

2.2 ATTACHINGONENDTOHOUSE

If fixing a Multispan Curved unit on its end to a wall, twoalternatives are available. Purlins are fixed directly to thewall using 68mm wall brackets and valley beams usingbeam to wall brackets. This option will not require a rear frame and a curved apron flashing is fixed to the wall to

finishtheunit.

Theother alternative forMultispan Curved units, which alsoapplies to Clearspan Curved units, requires valley beamsbe fixed to the wall and a rear curved rafter installed for fixing purlins. The rear curved frame will need to be slightlyoffset from thewall toallowtheappropriatebracket fixing.

If fixing a curved unit on its end with suspension brackets toa fascia, typically a soaker flashing is used (Figure 13). Inthis case the curved rafter at the rear of the unit should beset back sufficiently to accommodate for the house gutter and infill panel (refer Figure 27). If fixing a curved unit on itsend to an attachment beam, elevated to the existing housegutter height, the attachment beam is to be as close aspossible (within 5mm) to the outside face of the gutter (Figure 28). The 150 attachment beam is fixed to rafter strengtheningbracketsasdetailed inSection2.1.1.

It is recommended that extended fascia strengtheningbrackets are fastened at a spacing not exceeding 1200mmcentres to fascia and rafters (Figure 13). Brackets are alsorecommended to the first rafter either side of the valleybeams. Secure brackets to rafters with 12x25 timber fixingscrews through pre-drilled holes and bolt through backchanneland fasciawith M10 bolts.

It is the builder’s responsibility to ensure the existingrafters and fascia are adequately reinforced andstrengthened to accommodate any additional attachedstructure. The reinforcing method must be approved by theappropriatecouncil orengineer.

Note:

2.2.1FASCIASTRENGTHENING

The 150 attachment beam becomes the base for the attachment of the Curved unit. Figure 11 shows a unit attached at theside.

11

C H A N N E L E X T E N S I O N

CURVED ROOF ATTACHED AT THE SIDE

W E B O V E R H A N G

STUD WALL

TIMBER RAFTER

150 ATTACHMENT BEAMFIXED TO RAFTER BRACKET

WITH TWO M12 BOLTS

GUTTER

150 ATTACHMENT BEAM

EAVES OVERHANGBRICK WORK

RAFTER STRENGTHENING BRACKETATTACHED TO RAFTER WITH

6 (M12 HEX HEAD BOLTS)

CURVEDRAFTER

EAVES PURLINFIXED TO

RAFTER USING14 x 95 SCREWS

CHANNEL

A

AREFER FIGURE6

BIRDS MOUTH

RECOMMENDED CHANNEL EXTENSIONBEYOND BIRDS MOUTH : 1900mmRECOMMENDED WEB OVERHANG : 400mm

13

CURVEDRAFTER

INFILL PANEL

GUTTER

SUSPENSIONBRACKET

VALLEY BEAM

BACK CHANNEL

EXTENDED FASCIASTRENGTHENING

BRACKET(ATTACHED TO RAFTERAND BACK CHANNEL)

SOAKER FLASHING

SOFFIT LINING

150 ATTACHMENTBEAM


12

CURVEDRAFTER

150 ATTACHMENTBEAM

MULTISPANCURVED UNIT

CLEARSPANCURVED UNIT

150 ATTACHMENT BEAMFIXED TO RAFTER BRACKET

WITH TWO M12 BOLTS

COVER FLASHING(OPTIONAL)RIVET

RIVET

STRENGTHENINGBRACKET

FASCIA

HOUSEGUTTER



7

3.0CURVEDFRAME

The curved rafters are supplied pre-cut as shown in Figure14. Measure the distance between rafter ends, O (Figure14), to check the spacing between the internal faces of thevalleybeams .

4.0 VALLEY BEAMASSEMBLY

Before erecting the valley beams for the Clearspan Curvedunit fix the beamcapping and beamchannel to the top of thebeams.

First fix the beamchannel to the top of the valley beamwithfour 12x20 hex head self drilling screws at the intendedposition of the curved rafters, as shown in Figure 15.Continue fixing the beam channel to top of the valley beam

using12x20hex head self drillingscrewsat500mmcentresasshown inFigure16.

Two 12x20 hex head self drilling screws must be used to fixthebeam capping to thebeamchannel on theopposite sideto the curvedrafter tovalleybracket , asshown inFigure15.It is important to ensure the break on the beam capping islocated in the top groove of the valley beam (Figure 16). Fixthe rest of the beam capping to the channel using 3mmrivets each side at 500mm centres (Figure 16). If attachingthe valley beam to a header beam, notch the capping if necessary, asshown inFigure25.

Refer to Section 4.1 if attaching the Stratco Curved unit onits side to a house, Section 4.2 if attaching on its end to ahouse, or refer to both sections if attaching the unit on itsside and end.

4.1SIDEATTACHED

For side attached units, without header beams, fix thecurved rafter to valley bracket to the valley beams (150attachment beam will be considered a valley beam) at the

correct rafterpositions (referSection5) using six12x20hexhead screws per bracket through the pre-drilled holes(Figure17).

CURVED RAFTER - MULTISPAN INFILL

CURVE OPENING (O)

CURVE OPENING (O)

FIX BEAM CAPPINGTO BEAM CHANNEL ATPOSITION OF RAFTER

USING TWO 12 X 20 HEXHEAD SELF DRILLING

SCREWS

FIX BEAM CHANNEL TOTOP OF THE VALLEY BEAM

AT RAFTER POSITIONUSING FOUR 12 X 20 HEXHEAD SELF DRILLINGSCREWS

15

BEAMCHANNEL

VALLEY BEAM

BEAM CAPPING

FIX BEAM CAPPING TOCHANNEL USING 3mmRIVETS EACH SIDE AT500MM CENTRES

FIX BEAM CHANNEL TOTOP OF THE VALLEY BEAMUSING 12 X 20 HEX HEADSELF DRILLING SCREWSAT 500MM CENTRES

LOCATE THEBREAK ON THE

CAPPING IN TOPGROOVE OF

VALLEY BEAM

14

20

25

25

120 VALLEY BEAM

20

25

25

BRACKET POSITION INLINEWITH THE TOP EDGE OF

THE UPPER GROOVE

CURVED RAFTER TO VALLEY BRACKET

MULTISPAN CURVED UNIT

CLEARSPAN CURVED UNIT

BRACKET POSITION INLINEWITH THE TOP FACE OF120 BEAM

20

25

25

BRACKET POSITION INLINEWITH THE TOP FACE OF150 BEAM

20

25

25

16

17

150 VALLEY BEAM

120 VALLEY BEAM

BRACKET POSITION INLINEWITH THE TOP EDGE OF

THE UPPER GROOVE



150 VALLEY BEAM


BEAM CAPPING

BEAM CAPPING

CURVED RAFTER - ALL CLEARSPAN, MULTISPAN NO INFILL



8

Please note that for Multispan Curved units the top face of the bracket lines up with the top edge of the upper grooveforboth 150beams and 120 beams (Figure 17).

For Clearspan Curved units please note that the bottomface of the bracket is inline with the top face of the beam(Figure 17).

Check positions before drilling.This canbe done before thevalleybeams arefixedinplace.

Support thesecondvalley beam at thespacing determinedin Section 3.0 on adjustable construction props. If anyintermediate columns are required, measure the valleybeam marking where they meet. Fasten post brackets asexplained in

under “FRONTFASCIA BEAM”.

For units attached on the end to a wall, wall brackets arepositioned at either side of thecurve openingat thespacingdetermined in Section 3.0. The first bracket is fastened tothewallwith twoM8 masonry anchors.

The curved legsof the bracket are located at the top and thehighest point of the wall bracket will be 15mm below the topof the beam (Figure 18). Locate the first valley beam(double thickness on top for the Multispan Curved unit,beam capping on top for Clearspan Curved unit) up into thewall bracket so thecurved legs locateagainst thetop fluteof thebeam.

The valley beam is fastened to the wall bracket with 12x20

hex head screws in the pre-drilled holes while the oppositeendis supportedon adjustable constructionprops.

‘Outback Flat Attached Verandahs, Patios &Carports’

4.2 ENDATTACHED

For units attached on the end to a fascia, suspensionbrackets are positioned at either side of the curve openingat the spacing determined in Section 3.0 (Figure 14). Thetop tab of the suspension bracket must be located betweenthe fascia and back channel. A minimum of two M6 bolts

with washers are fixed through the back channel,suspensionbracket andfascia (Figure 19).

If back channel is not present, (ie, no adjacent flatroof) locate a 2mm washer plate behind the timber or steelfascia at the beam to fascia connection. Bolt throughsuspensionbracket, fascia andwasherplate.

Note:

The first valley beam is fastened into the suspensionbracket with three 12x20 hex head screws either side whilethe opposite end is supported on adjustable constructionprops.

For units attached on the end to an attachment beam(Figure 28), beam to beam brackets arepositioned at either side of the curve opening at the spacing determined inSection3.0 (Figure14).

Fix beam to beam brackets to the attachment beam(header beam) with two 12x20 hex head screws so theyclamp the beam filler to the beam (Figure 20). The firstvalleybeamis fastenedover thebeamtobeam bracket withtwo 12x20 hex head screws either side while the oppositeend is supportedonadjustable constructionprops.

If any intermediate columns are required measure thevalley beam marking where they meet. Fasten postbrackets asexplained in the i

under “FRONT

FASCIA BEAM”. This can be done before valley beams arefixed inplace.

If attached on the end, attach the second valley beam intothe wall, fascia or attachment beam and support the other end on adjustable construction props. Adjust the valleybeam to thecorrect height.

For end attached Clearspan Curved units a 1 1 in60) fall is required toward the front of the unit allowing roof sheetsto drain into thecurved gutter.

Note: ° (

nstallation guide ‘OutbackFlat Attached Verandahs, Patios & Carports’

20

NOTCHEDBEAM CAPPING

(CLEARSPANONLY)

TWO 12x20 HEXHEAD SELF DRILLINGSCREWS EITHER SIDE

BEAM TOBEAM BRACKET

BEAM FILLER

ATTACHMENT(HEADER) BEAM

TWO 12x20 HEX HEADSELF DRILLING SCREWS

WALLBRACKET

18


TWO 12x20HEX HEAD SELF

DRILLING SCREWSEITHER SIDE

TWO M8 MASONRY ANCHORSWITH A MINIMUM EMBEDMENT OF 65mm

or TWO 8mm DIAMETER SCREWBOLTS

WITH A MINIMUM EMBEDMENT OF 65mm

MINIMUM EDGE DISTANCE OF BOLTS &SCREWS IS (10 x dia)

15mm

19

OUTBACKDECK

1.0mm STEPPEDBACK CHANNEL

VALLEY EAMB

SUSPENSIONBRACKET

M6 BOLTS AND WASHERS



9

5.0CURVEDFRAME CONNECTION

5.1CURVEDFRAMES

5.1.1MULTISPAN CURVEDFRAMES

Note: Be aware that curved rafters are always 100 RHSbeams, however valley beams may consist of either 120or 150 beams which will effect the position of the curvedrafters relative to the valley beam.

If no infill is to be used at the front of the curved section(Figure 1) and if there is no header, connect the curvedrafter to valley brackets so that the front face of the bracketis flush with the front faceof the valleybeam.

The curved rafter to valley brackets are attached to thevalley beams using six 12x20hex head screws (Figure 17,Section4.1)at theappropriate locations.

Fix the curved rafters into the curved rafter to valleybrackets with two 12x 20 hex head screws either side(Figure 21).

Intermediate frames shouldbespacedevenlyand fixed intocurved rafter to valley brackets as previously described. Arear curved frame without a header beam (no infill) is fixedasper an intermediate frame.

Refer to Section 5.2.1.1 if attaching a Stratco MultispanCurved unit on it’s side to a house and both Section 5.2.1.1and Section 5.2.2 if attachingon it’s end orattachingon bothit’s side and end.

5.1.2CLEARSPAN CURVEDFRAMES

Fix thecurvedrafter to valleybrackets to thebeam cappingusing six 12x20 hex head screws (Figure 17, Section 4.1)at theappropriate locations.

Fix the curved rafters into the curved rafter to valley

brackets with two 12x20 hex head screws either side(Figure 22).

Intermediate frames should be spaced evenly and fixedinto curved rafter to valley brackets as previouslydescribed. A rear curved frame without a header beam isfixedasper an intermediate frame.

It is important to ensure that in the case of a unit withouta header the front face of the front curved rafter to valleybracket is flush with the front face of the front fasciabeam or the front face of the valley beam.

For a unit with a header beam the front face of the frontcurved rafter to valley bracket must be flush with thefront face of the header beam.

Refer to Section 5.2.1.2 if attaching a Stratco ClearspanCurved unit on it’sside to a house and both Section 5.2.1.2and Section 5.2.2 if attaching on it’s end or attaching onboth it’s side andend.

2222B

150 VALLEY BEAM

C U R V E

D RA F T

E R

CURVEDRAFTER

TO VALLEYBRACKET

TWO 12x20 HEX HEADSCREWS EITHER SIDE

BEAMCAPPING

22A

120 VALLEY BEAM

C U R V E

D RA F T

E R

CURVEDRAFTER

TO VALLEYBRACKET

TWO 12x20 HEX HEAD

SCREWS EITHER SIDE

BEAMCAPPING

21A

150 VALLEY BEAM

120 VALLEY BEAM

C U R V E

D RA F T

E R

CURVED RAFTERTO VALLEYBRACKET

21B

21




C U R V

E D RA

F T E R



10

5.2CURVEDFRAMEWITH INFILL

5.2.1 FRONTINFILL

5.2.1.1 MULTISPANFRONT INFILL(FIGURE 2)

Where there isan infillat the front oftheunit (in the caseof aside attached unit, infills on both ends are treated as frontinfills), run the front fascia beam of the flat roof sectioncontinuously across the opening to support the infill paneland form a header beam (the gutter subsequently runs thefull lengthof theheaderbeam), seeFigure 23.

IIfthereis no

adjacent flat a header beamis required,see Figure24.

Measure the end curved frame opening and attach curvedrafter to header brackets to the header beam at theappropriate spacing using six 12x20 hex head self drilling

screws.

f attached on the side the rear header is fixed to theattachmentbeam with beamtobeam brackets.

Fasten the curved rafters that form the end curvedframe into the curved rafter to header brackets with aminimum of two 12x20 hex head screws either side (Figure23).

5.2.1.2CLEARSPAN FRONT INFILL(FIGURE4)

Where there isaninfill atthefrontof the unit(in the caseof aside attached unit, infills on both ends are treated as frontinfills), run the front fascia beam of the flat roof sectioncontinuously across the opening to support the infill paneland form a header beam (the gutter subsequently runs the

full lengthof theheaderbeam),seeFigure25.

If there is noadjacent flata front headerbeamis to beused,Figure 26.

Measure the end curved frame opening and attach curvedrafter to valley brackets to the beam capping at theappropriate spacing using a minimum of six 12 x 20 hexheadself drillingscrews.

Rafters are fastened inside the curved rafter to valleybrackets with a minimum of two 12x20 hex headself drillingscrewseither side asshown inFigures 25and 26.

It is important to ensure that the front face of the curvedrafter to valley bracket is flush with the front face of theheaderbeam.

26


BEAMCAPPING HEADER BEAM

CURVEDRAFTER

ATTACH CURVED RAFTER TOBRACKET USING A MINIMUM

OF TWO 12x20 HEX HEADSELF DRILLING SCREWS

EACH SIDE

ATTACH CURVED RAFTER TO VALLEY BRACKET USING AMINIMUM OF SIX 12x20 HEX

HEAD SELF DRILLING SCREWS

VALLEYBEAM

ATTACH CURVED RAFTERTO VALLEY BRACKET USING

A MINIMUM OF SIX12x20 HEX HEAD

SELF DRILLING SCREWS


OF TWO 12x20 HEX HEADSELF DRILLING SCREWS

EACH SIDE

25


BEAMCAPPING

HEADERBEAM

NOTCH BEAMCAPPING TO FIT

OVER BEAM

VALLEYBEAM

CURVEDRAFTER

CURVED RAFTERTO HEADERBRACKET

CURVEDRAFTER


OF TWO 12X20 HEX HEADSELF DRILLING SCREWS

EACH SIDE

ATTACH BRACKET TO HEADERUSING A MINIMUM OF SIX12X20 HEX HEAD SELF

DRILLING SCREWS

HEADER BEAM

VALLEYBEAM

24

23

CURVED RAFTERTO HEADERBRACKET

HEADER BEAM

CURVEDRAFTER


OF TWO 12X20 HEX HEADSELF DRILLING SCREWS

EACH SIDE

ATTACH BRACKET TO HEADERUSING A MINIMUM

OF SIX 12X20 HEX HEADSELF DRILLING SCREWS



11

5.2.2 REAR INFILL

5.2.2.1 SOAKER FLASHING

A rear header beam will be required if the unit includes aninfill to the rear curved frame. For units attached at the rear with suspension brackets, the rear header is fixed betweenvalleybeams usingbeamtobeambrackets.

If fixed at the rear to an attachment beam (Figure 28), theattachment beam becomes the header (valley beams arefixed to theheaderbeam).

For a Multispan Curved unit measure the end curved frameopening and attach curved rafter to header brackets to therear header beam at the appropriate spacing using six12x20 hex head self drilling screws. Rafters are fastenedinside the curved rafter to header brackets with a minimumof two 12x20 hex head self drilling screws either side asshown inFigure23and24.

For a Clearspan Curved unit, curved rafters are fastenedinsidethecurvedrafter to valleybrackets with a minimum of two 12x20 hex head self drilling screws either side asshown inFigures 25and 26.

Inboth Multispan andClearspan Curvedunits it is importantto ensure that the back face of the rafter is flush with theback face of therearheader beam.

If the rear header beam is positioned so that the top faceof the beam is below the bottom face of the house gutter a soaker flashing can be used to waterproof the rear endof the curved unit and neatly finish the base of the infillpanel, refer to Section 5.2.2.1.

If the rear header beam is positioned so that the top faceof the beam is above the bottom face of the house gutter a header flashing must be used in conjunction with therear infill, refer to Section 5.2.2.2.

In the case of a rear infill panel, a soaker flashing is used toconceal the existing house gutter, waterproof the rear endof the curvedunitand neatly finish the baseof the infill panel(Figure 27).

The rear curved frame and header beam are positioned toaccommodate for the house gutter and infill panel plus thestandardsoaker flashing which is optional with theOutbackunit (Figure 27). Fix the standard soaker flashing intoposition on top of the back channel (if one exists) andunderneath thegutter.

Infill panels must be fixed with split tail soft pull rivets at500mm centres a minimum of 20 mm above the pan of thesoaker flashing. This will reduce the possibility of moisturebeing absorbed into the sheet. Refer section 10 for detailsof fixinginfill panels tocurvedframes.

1.A custommadesoaker flashingwill need to beordered tothe required dimensions. The rafter setback will need to beadjustedtosuit.2.Donot formstopends ateitherend of the soaker flashing.3. Soaker flashing is not to come in contact with the base of thehouse gutter.

Note:

When a curved unit is fixed at the rear to an attachmentbeam which has its top face above the bottom face of thehouse gutter, typically a header flashing is used inconjunction with the rear infill. In this case, the rear attachment beam is considered a header, and along withthe rear curved frame is fixed as close as possible (within5mm) to the existing gutter in order to accommodate theheader flashing.

For a Multispan Curved unit the curved frame is fixed on tothe rear header using curved rafter to header brackets

(Figures23and 24).

For a Clearspan Curved unit the curved rafter is fixed ontothe beam capping into the curved rafter to valley bracketsaspreviously described (Figures25and 26).

Fix the header flashing into positionover the existing gutter lipwith rivets.

Infill panels are located behind the header flashing andfixed with split tail soft pull rivets at 500mm centres (Figure28). Refer section 10 for details of fixing infill panels tocurved frames.

5.2.2.2 HEADER FLASHING

27

CURVEDRAFTER

INFILL PANNEL

GUTTER

SOFFIT LINING

SUSPENSIONBRACKET

VALLEY BEAM

BACK CHANNEL

SPLIT TAIL SOFTPULL RIVETS

SOAKER FLASHING

RAFTERSETBACK

28STRENGTHENING

BRACKET

FASCIA

150 ATTACHMENTBEAM

HOUSEGUTTER

INFILL PANEL

HEADER FLASHING

CURVEDRAFTER

SPLIT TAILSOFT PULL RIVET



12

6.0MULTISPAN CURVED UNITPURLINS

The Stratco Multispan Curved unit uses purlins to supportthe roofing. The lowest purlin should be positioned amaximum of 50mm from the valley beam (Figure 29). In thecaseof a flat next to the curvethe lowest purlin is positionedadjacent to the back channel on the valley beam (Figure 33

and 34). Any intermediate purlins are spaced evenly onrafters, ensuring maximum recommended deck spans arenot exceeded. Where there is no purlin overhang ensurethat the end of the purlins are flush with the front face of therafter, as inFigure39.

Where purlins are continuous over rafters they are fixed inposition using 14x95 hex head self drilling screws. If it isnecessary for purlins to be broken over standard curvedframes (ie, purlinscontinue in thesame directionpasta join)a 68mm in-line purlin connector isused.

1. By drilling pilot holes and screwing through the top of thepurlin before lifting it into position, the process of screwinginto thecurved rafters ismade easier.2. Pilot holesshouldalso bedrilled throughcurvedrafters atthe fixing location.

Note:

Once the roofing is attached (Section 9.0) the gutter issecured to the roof sheeting using gutter straps atmaximum 1000mm intervals. Gutter straps may need to bebent slightly so they can be rivetted to the roof sheets. Allgutter joinsand rivetsareto bewaterproofedwithsilicon.

ut 30mm tabs in the gutter back lip at 1000mmintervals and fold back. Fix the gutter to the beam capping,through the tabs with rivets as shown in Figure 32. Oncedecking is attached (Section 9.1 and 9.3) fit gutter straps atmaximum 1000mm intervals, attaching to the top of thedeckingwith rivets.

A curved gutter must also be attached to the front and

possibly rear of the Clearspan Curved unit. The gutter isattached to the top of the curved rafter. Fix the gutter to thetop of the curved rafter, through the gutter back lip withrivetsasshown inFigure36.

Where there is no flat roof adjacent to the ClearspanCurved unit, the gutter is attached to the top of the beamcapping and must return around to the front of the unit, seeFigure 31. C

8.2 CLEARSPAN CURVED UNITGUTTERING

7.0REMAININGFRAMEASSEMBLY

8.0GUTTERING

8.1MULTISPAN CURVED UNITGUTTERING

Assemble the remaining framework of the verandah as per the i

. Fix the posts, as described in theinstruction brochure under "COLUMNS AND FOOTINGS”or "ALTERNATIVE FOOTING".

All adjustable construction props are to be left inpositionuntildecking isattachedand concrete is set.

. Gutters will need to bemitred if they continue around a corner. All gutter joins andrivetsare tobewaterproofedwith silicon.

Where there is no flat roof adjacent to theMultispan Curvedunit, the gutter is attached with gutter straps and flatconnecting strips which are fixed to the valley beam. Cutthe strip into sections and rivet at 1000 mm intervals to thevalley beam. Fix the gutter to the strip with rivets as showninFigure30.

Note:

If a flat verandah is included connect the gutter to the flatroof Outback as described in

nstallation guide ‘Outback Flat Attached Verandahs,Patios & Carports’

‘Outback Flat AttachedVerandahs, Patios & Carports’

29

5 0 m m

PURLIN

C U R V E D

RA F T E R

VALLEYBEAM

( M A X )

STEEL STRIP RIVETTED AT 1000mmINTERVALS TO VALLEY BEAM

AND GUTTER

30150 VALLEY

BEAM

GUTTER

C U R V E D R AF T E R

UNIVERSALDECK STRAP

C U R V

E D RA

F T E R

GUTTER

CURVED RAFTER TO VALLEY BKT

COLUMN

OUTBACK DECK

VALLEY BEAM

BEAM CAPPING

GUTTER

C U R V

E D R A

F T E R

O U T B

A C K D

E C K

RIVET TABS TO TOPOF BEAM CAPPING AT1 METRE INTERVALS

32

31

CURVED RAFTER TO VALLEY BKT

COLUMN

VALLEY BEAM



141313

The ends of the curved gutter should feed into the gutter oneither side of theunit.

Once decking is attached (Section9.0) thegutter is securedto the roof sheeting using gutter straps at maximum1000mm intervals. All gutter joins and rivets are to bewaterproofedwithsilicon.

If a flat verandah is included attach the decking to the flatroof verandah first as laid out under "THE DECKING"( ),starting from the valley beam and working away, on bothsides.

The back channel is attached upside down (the shorter legon top) along valley beams to assist the fixing of decking.

(Figures 33, 34 and 35). The channel extends to the end of thevalley beams.

Figure 34 shows the back channel and Outback Deckrunning perpendicular to a 150 valley beam, on a MultispanCurved unit. Figure 33 shows the back channel andOutback Deck running parallel fixed toa 150 valleybeamona Multispan Curved unit. Figure 35 shows the back channeland Outback Deck running perpendicular to a 150 valleybeam on a Clearspan Curved unit. The Outback Deck andback channel can also run parallel to the valley beam in aClearspan Curved unit.

9.0ATTACHDECKING

9.1FLAT ROOF

‘Outback Flat Attached Verandahs, Patios & Carports’

9.2 MULTISPAN CURVED UNIT

9.3CLEARSPANCURVEDUNIT

Corrugated roofing is supplied pre-curved to the requiredradius. Polycarbonate roofing can be used on curvedframes with radii greater than 3m, and is spring curved onsite,overpurlins.

When attaching the roofing to the unit, start from the front,aligningthe sheetsso as toavoid thepurlin fixingscrews.

Standard roof fixing requirements apply for corrugated andpolycarbonate roofing.

Outback Deck is supplied flat and must be spring curvedon side over the rafter. When attaching the decking to theunit, start from the valley beam with the deck runningparallel to the beam. Fix the deck to the curved rafters.

Standard roof fixing requirements apply for OutbackDeck.

The Outback Deck will need to overhang the curved rafter allowingwater to flow directly into thegutter (Figure36).

Note: If Installing Outback Rooflite, refer to “OUTBACKROOFLITE INSTALLATION” (‘Outback Flat AttachedVerandahs,Patios & Carports’).

33

MULTISPAN CURVED UNITOUTBACK DECK RUNNINGPERPENDICULAR TO 150 VALLEY BEAM

150 VALLEY BEAM

OUTBACKDECK

BITUMENIMPREGNATEDFOAM

BACK CHANNEL(UPSIDE DOWN) ROOFING

RAFTER

68 PURLIN

CURVEDRAFTER

CURVED GUTTEROUTBACK DECK

RIVET TABS TO TOPOF CURVED RAFTER AT

1 METRE INTERVALS

36

MULTISPAN CURVED UNITOUTBACK DECK RUNNINGPARALLEL TO 150 VALLEY BEAM

150 VALLEY BEAM

OUTBACKDECK

BITUMEN IMPREGNATEDFOAM INSERT

BACK CHANNEL(UPSIDE DOWN)

ROOFING

RAFTER

68 PURLIN

34

35

C U R V E D R

A F T E R

OUTBACK DECK

OUTBACK DECK

FRONT FASCIA BEAM VALLEY BEAM

CURVED RAFTERTO VALLEY BKT

COLUMN

CLEARSPAN CURVED UNITOUTBACK DECK RUNNINGPERPENDICULAR TO 150 VALLEY BEAM



1414

No Purlin Overhang

CURVEDBARGE CAP

12x35mm ROOFINGSCREWS

END OF PURLIN INLINEWITH FRONT FACE OF

RAFTER

RAFTER

ROOFING

14 x 95 HEX HEADSELF DRILLING SCREWS

PURLIN

ATTACH THROUGHROOFING AND PURLIN

CURVEDBARGE CAP

RIVETRAFTER

ROOFING14 x 95 HEX HEAD

SELF DRILLING SCREWS

PURLIN

ATTACH THROUGHROOFING AND PURLIN

Purlin Overhang

39

38

RAFTER INFILL PANEL

8x35mm SELFEMBEDDING TEK

12x20 HEX HEAD SELFDRILLING SCREWS

HEADER FLASHING

HEADER BEAM

INFILL PANEL

37

GUTTER

HEADER FLASHING

SPLIT TAIL SOFTPULL RIVETS

HEADER BEAM

RAFTER

10.2 HEADERBEAM WITHOUT GUTTER

Infill panels are fixed through the front face of rafters andthe lower groove of the header beam with 8x35mm self embedding teks. Fix at 500mm centres in non-cyclonicareasand 250mmcentres incyclonic areas.

Attach the header flashing to the underside of the header beam with 12x20 hex head screws to neatly finish the baseof theinfill panels (Figure 38).

11.0 MULTISPAN CURVED UNIT BARGE CAP10.0 INFILLPANELS

10.1 HEADERBEAM WITH GUTTER

Two styles of header flashings are available to neatly finishthe base of infill panels, one is used on header beams withgutter (Section 10.1) and the other for headers withoutgutter (Section10.2).

Curved infill panels are tobecut insemicircular shapes to fittheend frame.

Panels can be painted to the desired colour beforeinstalling.

Attach the header flashing to the rear gutter lip with rivets.Infill panels are fixed through the front face of rafters with8x35mm self embedding teks at 500mm centres in non-cyclonicareasand250mm centres incyclonicareas.

Panels are fixed at the base through the header flashingwith split tail soft pull rivetsat500mmcentres (Figure 37).

Outback Curved

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