Alumasc

Flushjoint Pipe System

premium products • proven solutions

Uniclass G5812

CI/SfB(52.5)

April 2008

2 Alumasc Technical Helpline 01744 648400

Flushjoint Contemporary Rainwater Pipe Systems

IntroductionFlushjoint is a range of circular andrectangular pipes with flush spigotjoints between pipes and fittings.

The Flushjoint rainwater downpipesystem has high impact resistance. The material hardness and fixingmechanisms give excellent rigidity.

FeaturesFlushjoint is a heavy grade extrudedrainwater pipe system, complementedby a full range of fittings andbracketry.

Flushjoint is available in four standardpipe diameters and three alternativesquare/rectangular sections.

ContentsIntroduction 2

Components 4

Installation 8

Model Specification 10

Colour 11

Flushjoint pipework may be used inconjunction with any gutter systemfrom the Contemporary range,providing the girth of the gutter issufficient to accommodate the crosssectioned area of the pipe. Runningoutlets are made to order according tochoice of gutter and individual projectrequirements.

The Flushjoint system is built from thegutter downwards starting with theoffsets and bends. The system usesoffset brackets, pipes or small basebrackets to secure pipework with theminimum of visual intrusion.

The systems and components howeverare not designed for use inunderground drainage or as partof a soil or waste system.

Key Benefitsn Hidden spigot jointing arrangement

n Fast flow/high capacity

n Lightweight yet strong

n Durable and corrosion resistant

n Quick and easy to fix and joint

n Wide choice of Raincote polyester colours

n Minimal maintenance

n British made

For full colour range see page 11.

3Alumasc Technical Helpline 01744 648400

ApprovalsAlumasc is approved to BS EN ISO 9001:1994 – Registration Nos Q 06401 and FM 35898.

Composition andManufactureThe Flushjoint rainwater downpipesystem is extruded to BS EN12020:2001, BS EN 515:1993, BS EN573:1995 and BS EN 755, from grade6063 T6 alloy, and are drift tested atworks. Flushjoint wall thickness is1.22mm (for 63mm diameter, and76mm diameter pipes), 1.5mm (for102mm diameter), 2.5mm (for 102mmsquare), and 2.0mm (for 72mm squareand 102 x 76mm rectangular).

FinishFlushjoint can be supplied in plainfinish or in polyester powder coatingsto order. These are powder coatings toBS 6496:1984 Specification for powderorganic coatings for application andstoving to aluminium alloy extrusions,sheet and preformed sections forexternal architectural purposes, andfor the finish on aluminium alloyextrusions, sheet and preformedsections coated with powder organiccoatings.

Alumasc holds BBA Certification No. 86/1671 for a range of polyestercolours applied to BBA approvedstandards.

Special colours with a BS or RALnumber can be supplied to customers’specification: consult AlumascTechnical Services for further details.

Coated Alumasc rainwater products are shrink wrapped in polythene priorto despatch.

BRITISH BOARD OF AGREMENT

CERTIFICATE No 86/1671

4 Alumasc Technical Helpline 01744 648400

Round Pipe Components

ab

ab

a b

a

b

a

b

ab

a

b

c

Pipe diameter 63 76 102 152

a 100 100 100 100

b 100 100 100 100

CP25

/B/92

A

CP30

/B/92

A

CP40

/B/92

A

CP60

/B/92

A

Code Ref

Bends92.5 Degree

63 76 102 152

100 100 100 100

100 100 100 100

CP25

/B/11

2A

CP30

/B/11

2A

CP40

/B/11

2A

CP60

/B/11

2A

112.5 Degree

63 76 102 152

100 100 100 100

100 100 100 100

CP25

/B/13

5A

CP30

/B/13

5A

CP40

/B/13

5A

CP60

/B/13

5A

135 Degree

Pipe diameter 63 76 102 152

a 300 300 300 400

b 100 100 100 200

CP25

/BR/92

A

CP30

/BR/92

A

CP40

/BR/92

A

CP60

/BR/92

A

Code Ref

Branches92.5 Degree

63 76 102 152

300 300 300 400

100 100 100 200

CP25

/BR/11

2A

CP30

/BR/11

2A

CP40

/BR/11

2A

CP60

/BR/11

2A

112.5 Degree

63 76 102 152

300 300 300 400

100 100 100 200

CP25

/BR/13

5A

CP30

/BR/13

5A

CP40

/BR/13

5A

CP60

/BR/13

5A

135 Degree

Pipe diameter 63 76 102 152

a 100 100 100 125

b 55 70 70 100

c 25 25 25 30

CP25

/SHA

CP30

/SHA

CP40

/SHA

CP60

/SHA

Code Ref

Shoe

a bc

Pipe diameter 63 76 102 152

a 300 300 300 400

b 150 150 150 200

c 50 60 70 100

CP25

/ACPA

CP30

/ACPA

CP40

/ACPA

CP60

/ACPA

Code Ref

Access Pipes

Pipe diameter 63 76 102 152

CP25

/2MA

CP30

/2MA

CP40

/2MA

CP60

/2MA

Code Ref

PipesPipe Length 2m

63 76 102 152

CP25

/3MA

CP30

/3MA

CP40

/3MA

CP60

/3MA

Pipe Length 3m

5Alumasc Technical Helpline 01744 648400

a

aa

b

a

a

a

b

a

a

a

b

Pipe diameter 63 76 102 152

a 100 100 100 100

b 250 250 250 250

CP25

/250/9

2A

CP30

/250/9

2A

CP40

/250/9

2A

CP60

/250/9

2A

Code Ref

92.5 Degree Two Piece Offsets250mm Offset

Pipe diameter 63 76 102 152

a 127 140 165 255

b 95 108 133 215

c 65 71 90 118

RW1/2

36

RW2/2

37

RW3/2

38

RW60

/PC

Code Ref

Pipe ClipsStandard Base

63 76 102 152

100 100 100 100

500 500 500 500

CP25

/500/9

2A

CP30

/500/9

2A

CP40

/500/9

2A

CP60

/500/9

2A

500mm Offset

63 76 102 152

100 100 100 100

750 750 750 750

CP25

/750/9

2A

CP30

/750/9

2A

CP40

/750/9

2A

CP60

/750/9

2A

750mm Offset

63 76 102 152

100 100 100 100

1000 1000 1000 1000

CP25

/1000

/92A

CP30

/1000

/92A

CP40

/1000

/92A

CP60

/1000

/92A

1000mm Offset

Pipe diameter 63 76 102 152

a 100 100 100 100

b 250 250 250 250

CP25

/250/1

12A

CP30

/250/1

12A

CP40

/250/1

12A

CP60

/250/1

12A

Code Ref

112.5 Degree Two Piece Offsets250mm Offset

63 76 102 152

100 100 100 100

500 500 500 500

CP25

/500/1

12A

CP30

/500/1

12A

CP40

/500/1

12A

CP60

/500/1

12A

500mm Offset

63 76 102 152

100 100 100 100

750 750 750 750

CP25

/750/1

12A

CP30

/750/1

12A

CP40

/750/1

12A

CP60

/750/1

12A

750mm Offset

63 76 102 152

100 100 100 100

1000 1000 1000 1000

CP25

/1000

/112A

CP30

/1000

/112A

CP40

/1000

/112A

CP60

/1000

/112A

1000mm Offset

Pipe diameter 63 76 102 152

a 100 100 100 100

b 250 250 250 250

CP25

/250/1

35A

CP30

/250/1

35A

CP40

/250/1

35A

CP60

/250/1

35A

Code Ref

135 Degree Two Piece Offsets250mm Offset

63 76 102 152

100 100 100 100

500 500 500 500

CP25

/500/1

35A

CP30

/500/1

35A

CP40

/500/1

35A

CP60

/500/1

35A

500mm Offset

63 76 102 152

100 100 100 100

750 750 750 750

CP25

/750/1

35A

CP30

/750/1

35A

CP40

/750/1

35A

CP60

/750/1

35A

750mm Offset

63 76 102 152

100 100 100 100

1000 1000 1000 1000

CP25

/1000

/135A

CP30

/1000

/135A

CP40

/1000

/135A

CP60

/1000

/135A

1000mm Offset

Code Ref

63 76 102

127 140 165

95 108 133

65 71 90

RW1/S

B/PC

RW2/S

B/PC

RW3/S

B/PC

Small Base

63 76 102

- - -

- - -

279 285 304

RW1/3

64

RW2/3

65

RW3/3

66

Extended Base

c

ba c

Small Base Extended Base

ba

c

Standard Base

c

6 Alumasc Technical Helpline 01744 648400

Square Pipe Components

ab

ab

a b

a

b

c

Bends

Shoe

a bc

Access Pipes

Pipe Dimensions 75 x 75 75 x 100 100 x 100

CP33

/2MA

CP43

/2MA

CP44

/2MA

Code Ref

PipesPipe Length 2m

Pipe Dimensions 75 x 75 75 x 100 100 x 100

a 300 300 300

b 150 150 150

c 60 75 75

CP33

/ACPA

CP43

/ACPA

CP44

/ACPA

Code Ref

Pipe Dimensions 75 x 75 75 x 100 100 x 100

a 100 100 100

b 100 100 100

CP33

/B/92

A

CP43

/B/92

A

CP44

/B/92

A

Code Ref

92.5 Degree

75 x 75 75 x 100 100 x 100

100 100 100

100 100 100

CP33

/B/11

2A

CP43

/B/11

2A

CP44

/B/11

2A

112.5 Degree

75 x 75 75 x 100 100 x 100

100 100 100

100 100 100

CP33

/B/13

5A

CP43

/B/13

5A

CP44

/B/13

5A

135 Degree

Pipe Dimensions 75 x 75 75 x 100 100 x 100

a 300 300 300

b 100 100 100

CP33

/BR/92

A

CP43

/BR/92

A

CP44

/BR/92

A

Code Ref

92.5 Degree

75 x 75 75 x 100 100 X 100

300 300 300

100 100 100

CP33

/BR/11

2A

CP43

/BR/11

2A

CP44

/BR/11

2A

112.5 Degree

75 x 75 75 x 100 100 x 100

300 300 300

100 100 100

CP33

/BR/13

5A

CP43

/BR/13

5A

CP44

/BR/13

5A

135 Degree

Pipe Dimensions 75 x 75 75 x 100 100 x 100

a 100 100 100

b 55 70 70

c 25 25 25

CP33

/SHA

CP43

/SHA

CP44

/SHA

Code Ref

75 x 75 75 x 100 100 x 100

CP33

/3MA

CP43

/3MA

CP44

/3MA

Pipe Length 3m

a

b

a

b

ab

Branches

7Alumasc Technical Helpline 01744 648400

Pipe Clips

Pipe Diameter mm 75 x 75 75 x 100 100 x 100

a 160 190 190

b 130 160 160

c 52 54 67

RW33

/PC

RW43

/PC

RW44

/PC

Code Ref

75 x 75 75 x 100 100 x 100

84 84 84

47 47 47

78 80 93

RW33

/SB/PC

RW43

/SB/PC

RW44

/SB/PC

Standard Base Small Base

75 x 75 75 x 100 100 x 100

- - -- - -

290 max 290 max 305 max

RW33

/EX/PC

RW43

/EX/PC

RW44

/EX/PC

Extended Base

a

aa

b

a

a

a

b

a

a

a

b

Pipe diameter 63 76 102

a 100 100 100

b 250 250 250

CP33

/250/9

2A

CP43

/250/9

2A

CP44

/250/9

2A

Code Ref

92.5 Degree Two Piece Offsets250mm Offset

63 76 102

100 100 100

500 500 500

CP33

/500/9

2A

CP43

/500/9

2A

CP44

/500/9

2A

500mm Offset

63 76 102

100 100 100

750 750 750

CP33

/750/9

2A

CP43

/750/9

2A

CP44

/750/9

2A

750mm Offset

63 76 102

100 100 100

1000 1000 1000

CP33

/1000

/92A

CP43

/1000

/92A

CP44

/1000

/92A

1000mm Offset

Pipe diameter 63 76 102

a 100 100 100

b 250 250 250

CP33

/250/1

12A

CP43

/250/1

12A

CP44

/250/1

12A

Code Ref

112.5 Degree Two Piece Offsets250mm Offset

63 76 102

100 100 100

500 500 500

CP33

/500/1

12A

CP43

/500/1

12A

CP44

/500/1

12A

500mm Offset

63 76 102

100 100 100

750 750 750

CP33

/750/1

12A

CP43

/750/1

12A

CP44

/750/1

12A

750mm Offset

63 76 102

100 100 100

1000 1000 1000

CP33

/1000

/112A

CP43

/1000

/112A

CP44

/1000

/112A

1000mm Offset

Pipe diameter 63 76 102

a 100 100 100

b 250 250 250

CP33

/250/1

35A

CP34

/250/1

35A

CP44

/250/1

35A

Code Ref

135 Degree Two Piece Offsets250mm Offset

63 76 102

100 100 100

500 500 500

CP33

/500/1

35A

CP34

/500/1

35A

CP44

/500/1

35A

500mm Offset

63 76 102

100 100 100

750 750 750

CP33

/750/1

35A

CP34

/750/1

35A

CP44

/750/1

35A

750mm Offset

63 76 102

100 100 100

1000 1000 1000

CP33

/1000

/135A

CP34

/1000

/135A

CP44

/1000

/135A

1000mm Offset

ab

c

c

Small Base Extended Base

ab

c

Standard Base

8 Alumasc Technical Helpline 01744 648400

Installation

InstallationFlushjoint is a ‘clean line’ rainwaterpipe system which installs from theeaves downwards.

Procedure

1 Pipes and fittings are supplied withfactory welded internal spigots.(Figure 1.)

2 The topmost pipe or offset isconnected to the gutter spigot, andsubsequent lengths of pipe are thenslid over the spigot at the bottom ofthe preceding pipe. (Figure 2A and 2B.)

3 Apply a bead of low modulus, DOW791, silicone sealant around thespigot at each joint, prior to slidingthe two pipes together. (Figure 2A/1 and 2B/1.)

4 As the stack is progressively placedin position, each Flushjoint pipe is fixed back to the wall using astandard pipe clip, a small base or an extended base, which is slidinto place over the pipe prior topositioning the pipe beneath.(Figure 3A and 3B.)

5 For a completely clean joint line thepipe clip or bracket can bepositioned over the pipe joint whenfixing back to the wall. (Figure 3A/1 and 3B/1.)

6 Pipe clips and brackets should befixed to the wall using No. 12 x 50mm round head twin threadscrews, into plugs with a washerbeneath the screw head.

Siliconesealantto spigot

Concealedpipe joint

Figure 1

1

11

1

1

Figure 2A

Figure 3A

Siliconesealantto spigot

Concealedpipe joint

1

11

1

Figure 2B

Figure 3B

9Alumasc Technical Helpline 01744 648400

Flushjoint pipework may be used inconjunction with any gutter systemfrom the Contemporary range,providing the girth of the gutter issufficient to accommodate the crosssectioned area of the pipe.

Running outlets are made to orderaccording to choice of gutter andindividual project requirements.

Systems are built from the gutterdownwards starting with the offsetsand bends. The Flushjoint system usesoffset brackets, pipes or small basebrackets to secure systems with theminimum of visual intrusion.

Aqualine Modern

FlushjointFlushjoint

Aqualine Box

10 Alumasc Technical Helpline 01744 648400

Specification

Model SpecificationAlumasc Flushjoint heavy grade aluminiumextruded downpipes and fittings to BS EN 1462:1997, BS EN 612:1996, BS EN 12020:2001, BS EN 515:1993, BS EN 573:1995 and BS EN 755 in .........mm material and to a BBA certificationwhere applicable.

Profile to be circular / square /rectangular *, in ......... mm size,reference .........

Colour to be factory applied electrostaticpolyester powder coated ................RAL number ............. or plain aluminium finish.*

All manufactured by Alumasc ExteriorBuilding Products Ltd, White House Works,Bold Road, Sutton, St Helens, MerseysideWA9 4JG.

Joints to be sealed with bead of lowmodulus silicone sealant as jointinginstructions. Pipes to be secured withpipe clips at 2.0m maximum centres. Useplugged fixings No. 12 x 50mm round headtwin thread screws with washers, brightzinc plated and passivated to BS EN12329:2000. (Good quality sherardized orcadmium plated screws may be used).

Allow for a 4mm thermal movement gap at joints.

Notes

If using stainless fixings, insulated washers must be used. Specify matching touch uppaint if required.

The Raincote range of polyester colours may beseen on opposite page.

The Alumasc RainwaterDrainage Design ServiceAlumasc Technical Services can calculatethe most appropriate system of guttersand downpipes for all of the rainwatersystems that are offered.

Using dedicated design software inconjunction with the requirements of BSEN 12056:2000: Gravity drainage systemsinside buildings – Part 3 calculation of themost efficient drainage set up takes intoconsideration the following criteria:

n Catchment area

n Local rainfall intensity

n Building life and safety factor

n Size and flow rate of gutters

n Frequency and size of outlets anddownpipes

The gutter flow software, used byAlumasc automatically checks thecapacity of downpipes used and suggeststhe minimum size to which down pipescan be sized.

11Alumasc Technical Helpline 01744 648400

All Alumasc aluminium rainwaterproducts can be supplied in plain finishor in the Raincote range of factoryapplied polyester powder coatings.

The standard range comprises the 16colours illustrated right, chosen tocomplement both traditional andcontemporary building styles andmaterials. Other colours with a BS orRAL number can be supplied to specialorder. Consult Alumasc TechnicalServices for further details.

Raincote complies with BS 6496: 1984Specification for powder organiccoatings for application and stoving toaluminium alloy extrusions, sheet andpreformed sections for externalarchitectural purposes, and for finishon aluminium alloy extrusions, sheetand preformed sections coated withpowder organic coatings.

The aluminium undergoes a series ofpre-treatments to provide the perfectlyprepared surface to receive an electro-statically applied polyester powder inthe chosen colour. This is then ‘baked’and bonded to the fitting in a carefullycontrolled oven; the complete processis achieved on a continuous line toobtain the best results. Alumasc holdsBritish Board of Agrément CertificationNo. 86/1671 for a range of polyestercolours which is being constantlyreviewed and extended. Theperformance greatly exceeds that ofsite painting.

RAL 1011m Brown Beige

RAL 1013m Pearl White

RAL 2002m Vermilion

RAL 5003m Sapphire Blue

RAL 1021m Cadmium Yellow

RAL 3003m Ruby Red

RAL 5010m Flower Blue

RAL 7024m Graphite Grey

RAL 3005m Wine Red

RAL 6005m Moss Green

RAL 7038m Agate Grey

RAL 8019m Grey Brown

RAL 6018m Yellow Green

RAL 8017m Chocolate Brown

RAL 9016m White

RAL 9017m Black

Polyester powder coating in accordancewith BS 6496:1984 refers to thecovering of ‘significant’ surfaces. In thecase of rainwater systems this isaccepted to mean surfaces visible fromground level. Alumasc systems willcertainly be finished to this standard,and will in most cases exceed it.

Delivery

Alumasc factory finished rainwaterproducts are shrink wrapped inpolythene prior to dispatch.

BRITISH BOARD OF AGREMENT

CERTIFICATE No 86/1671

Colour

Colours are reproducedfor general guidanceonly. Please contactAlumasc for samples andfurther information.

premium products • proven solutions

A unique fusion of premium products,technical expertise and product support

ALUMASC EXTERIOR BUILDING PRODUCTS LTD

White House Works, Bold Road, Sutton,

St Helens, Merseyside, WA9 4JG

United Kingdom

Telephone: +44 (0)1744 648400

Facsimile: +44 (0)1744 648401

Website: www.alumasc-exteriors.co.uk

E-mail: info@alumasc-exteriors.co.uk

All reasonable care has been taken in the preparation of this brochure, all information, recommendations and guidance notes on the use of The Products are made without guarantee since the conditions of use are beyond the control of Alumasc Exterior Building Products Limited (The Company). The customer is responsible for ensuring that each product is fit for its intended purpose and that conditions for use are suitable.

The information contained in this brochure and advice arising therefrom is free of charge and accordingly on the terms that no liability nor liability for negligence will attach to The Company or its servants in relation to any such service arising out of or in connection with this brochure.

The Company pursues a policy of constant product development and information contained in this publication is therefore subject to change without notice.

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