OB Curved Roof Instructions - Stratco NZ Pergola Curved...concrete / masonary anchors for column installation. If required they must be purchased as additional items. ... between the

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Text of OB Curved Roof Instructions - Stratco NZ Pergola Curved...concrete / masonary anchors for column...

  • CURVED ROOF ATTACHED VERANDAH

    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 brochureFlat Verandahs Attached - Your complete guide to building an Attached Pergola Verandah, Patio or Carport'.

    BEFORE YOU START

    Carefully read these instructions, along with the Stratco Flat Verandahs AttachedInstructions. 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 ofinfill 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 rearof 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 rafterto 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.

    ADDITIONAL MATERIALS

    Please note that the Stratco Pergola kit does not include any brackets or fixings to attach the unit to an existing structure, or concrete / masonary anchors for column installation. If required they must be purchased as additional items.

    BEAMCAPPING Fixedtothetopofthevalley beam to provide support for the Pergola deck on a Clearspan 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 Pergola 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

    1012

    11

    18

    15

    14

    16

    16

  • 3CLEARSPAN COMPONENT LAYOUT

    7

    8

    6

    5

    4

    3

    2

    1 Pergola 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

    4

    5

    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

    2.1ATTACHING ON SIDE TO HOUSE

    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 someprevious building experience because some modificationsto the existing house structure are 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 engineeror a building authority. It is the builders responsibility toensure that the existing house roof structure isstrengthened correctly.

    Refer to Section 2.1 if attaching the Stratco Curved unit onits side to a house, Section 2.2 if attaching on its end to ahouse or refer to both sections if attaching the unit on itsside and end.

    A Stratco Curved unit attached on its side to a house isattached to the existing eaves overhang at the fascia, or toan existing wall 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 rooftiles or roof sheets need to be lifted to expose the roofframe. Steel rafter brackets and channels are then boltedalong the house rafters. Refer to Section 2.1.1.

    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 the beam.

    The first step is to determine the number of rafters whichneed 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 ofrafters which need to be strengthened is determined by thebuilder, however spacing is recommended not to exceed1200mm.

    ck

    Note: It is the builders responsibility to ensure the existingrafters and fascia are adequately reinforced andstrengthened to accommodate any additional attachedstructure. The reinforcing method must be approved by theappropriate council or engineer.

    It is recommended an adjustable rafter strengtheningbracket is used in conjunction with an extension channel, asshown in Figure 6.

    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 Stratcofor alternative 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 for standard gutters or box gutters with awidth of up to 200mm.

    In conjunction with rafter strengthening brackets a channelis fixed to the side of the house rafter (Figure 6). The bottomend of the channel must be located at the base of 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 approximately500mm centres.

    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 washerand nut (Figure 7).

    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 the M12 cup head bolts interfere with 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 horizontal and has the appropriateextension past the fascia to allow for fixing of theattachment beam. T piece connection bolts are to betightened to a minimum 35Nm torque.

    Fix the bracket as close to the base of the gutter as possible(recommended distance 10mm from lowest end of gutter),as shown in Figure 8 for a Multispan Curved unit, andFigure 9 for a Clearspan Curved unit.

    The 150 attachment beam is to be fixed to the end plate toensure the roof sheets extend into the existing house gutter(Figure 8 for a Multispan Curved unit, Figure 9 for aClearspan Curved unit).

    Fixing the 150Attachment Beam in Place

    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