ACO FreeDeck - Adjustable Installation Guide ACO FreeDeck is an advanced roofing and balcony drainage system combining line drainage with point drainage by using an open sided drainage channel system to collect and convey rainwater to drainage points within a raised or suspended deck structure. Connecting channel lengths Channels
1
2
Channels are supplied in 0.5m and 1.0m lengths. The channel lengths (figs 1 & 2) simply drop and lock together using a hook and lug principle. Once connected the channels cannot be pulled apart. To separate the connection, channels must be displaced vertically.
Fixing an End Plate End Plates End Plates incorporate pressed tangs (fig 3) which push fit into slotted openings (fig 4) at the end of the channel.
Lock screw
Setting up for length adjustment 3
4
A lock screw allows the End Plate to adjust to the correct channel height.
Setting up for length adjustment
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8
9
10
The top rail section spans the adjusted gap (fig 8) and sleeves between side of channel and base channel.
Note. In certain instances it may be possible to cut the end of a channel if the screw jack adjuster is sufficiently inset from the end of the channel, but this will eliminate “drop and lock� connection.
Adjustable Length The Adjustable Length component Height providesAdjustment up to 0.5m of adjustable span. Components consist of a base channel and top rail (figs 5 & 6) plus a spare 0.5m grating positioned last but one channel from the end of run. Channel ends (fig 7) sit in the base channel and slide adjust for difference in length of run.
After height adjustment, secure gratings (fig 9) with lock screws provided. Measure and cut down one spare 0.5m grating (fig 10) and secure with lock screws provided. Protect cuts with an application of cold galvanise paint.
Caution. Cutting through the channel at any point between the screwjacks will result in loss of height adjustment.
ACO Building Drainage, ACO Business Park, Shefford, Bedfordshire SG17 5TE Tel: 01462 816666
Height Ranges Shallow section Intermediate section Deep section
11
12
55-77mm 75-105mm 105-165mm
4 x Height adjustable screw jacks (figs 11 & 12) are located within the channels at either end and are top accessible for height correction. Before fitting the grating use a flat blade screwdriver to adjust the screwjack (fig 13) up or down for fine adjustment. It is possible to make adjustment for both roll and pitch if required. Complete adjustment to the channel run and with flat blade screwdriver secure gratings (fig 14) with clockwise quarter turn.
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14
Forming adjustable corner Adjustable Corner Channels at 90ยบ corners can be butt formed. At the point where a channel abuts the side of another channel, cut an opening to assist drainage, using an angle grinder. Irregular corners are formed by butting two channels as in (fig 15). 15
16
An adjustable corner kit (fig 16) makes fully supported and contained corners from 91ยบ to 179ยบ. The kit (fig 17) consists of: a) top rail, b) gravel guard, c) height adjustable support. The top rail (fig 18) is creased and easily bends to drop onto the outer rail of the corner.
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18
The corner (fig 19) must be stabilised by fitting the adjustable support provided. Secure the support with fixing nuts above and below (fig 20) and crop off excess stud length. The gravel guard has elongated perforations (figs 21, 22, 23) and subdivides according to the height of the channel by fatigue folding (fig 22).
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20
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ACO Building Drainage, ACO Business Park, Shefford, Bedfordshire SG17 5TE Tel: 01462 816666
Forming adjustable corner, cont’d Adjustable Corner Fold the gravel guard (figs 24 & 25) to wrap around the angle ensuring drainage slots are along the bottom edge.
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24
An over length grating must be used to form the mitred corner. Take measurements from the grating lock point (fig 26) to the inner and outer apexes of the corner to create an accurate mitre. Carefully cut the mitre and deburr. Apply a cold galvanise paint to the cut edges for added protection. Fit the gratings and secure with lock screws provided.
26
Lock point
Hint Cut opening
For 90Âş corners (fig 27), a butt joint is the easiest method to lay a channel system. At the point where two channels abut, it is advisable to cut an opening with an angle grinder to assist free drainage. Protect cuts with an application of cold galvanise paint.
27
Concealed drainage duct Drainage Duct Cut out frame Cut out channel
Drainage Duct is a low profile duct designed for concealed drainage beneath built up and walkway surfaces on suspended deck construction. Simply cut to length, the ducts are laid butt jointed.
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Connections into the side of access frames. Protect cuts with an application of cold galvanise paint.
ACO Building Drainage, ACO Business Park, Shefford, Bedfordshire SG17 5TE Tel: 01462 816666
Rainwater outlet positions Access Frame The Access Frame (fig 30) measuring 450mm x 450mm or 250mm x 250mm consists of a load class K3 grating to BS EN 1253 which simply lifts out for top access.
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31
The grating locates within an adjustable frame with perforated side slots (fig 31).
4 x Screw jacks (fig 32) are located within the frame at each corner. Each jack is independently adjustable for height correction.
32
The larger access frame is sized to allow top access to an ACO rainwater outlet (fig 33a) fitted with a flat grating. Alternatively, the smaller access frame is used with a rainwater outlet but fitted without a grating.
33a
Cut out frame
33b
Hint Gully type rainwater outlets (fig 33b) without a grating can be located in-line under channels with an opening cut into the sole of the channel.
Channels and Drainage Duct sections butt up to the side of the Access Frame and connections (figs 34) will require a free drainage opening to be cut using an angle grinder. Protect cuts with an application of cold galvanise paint.
34
Access Frame Extension Access Frame extensions (fig 35) measuring 450mm x 450mm and 250mm x 250mm provide additional height range of 50mm or 75mm height and fit within the frame of the perforated base. 35
The mesh grating is standard for both Access Frame and the Access Frame Extension fittings.
ACO Building Drainage, ACO Business Park, Shefford, Bedfordshire SG17 5TE Tel: 01462 816666
SETTING OUT & INSTALLATION FreeDeck Height Adjustable Example 1 - Setting out from corner A channel system with corner where length multiple is greater than 500mm (e.g. 12.65m) Notes A channel and grate system manufactured in 0.5m and 1m lengths. Height and length adjustable. Requires cutting of one grate for corner and one grate for length adjustment. Fully formed variable angles and 90º angles with mitred or butt grating (grates must be cut). To calculate mix of channel lengths, round down metreage to nearest whole number then add for: 1 x 1m channel (+grate) 1 x Adjustable Length section (+0.5m grate to cut) and 1 x 0.5mt channel + 1m grate to mitre).
Materials 1 x End plate 1 x 1m channel + 1 x 1m grate (to attach end plate). 1 x Adjustable Length section + 1 x 0.5m grate (to cut down and create 150mm section). 11 x 1m standard channels + 11 x 1m grates 1 x 0.5m channel + 1 x 1m grate (to mitre) 1 x Adjustable Corner element
Work Sequence Adjustable Length set to 150mm + 1 x 0.5m grate to cut
1m channel + 1m grate
0.5m channel + 1m grate to mitre
11 x 1m channels + 11 x 1m grates End plate
Adjustable Corner
Lay out channels-only working away from corner starting with the 0.5m length followed by the 11 x 1m lengths then Adjustable Length and then the remaining 1m length with end plate. (Note. The Adjustable Length compensates shortage difference in channel run). Fit Adjustable Length – no cutting of Adjustable Length or channels is necessary. Adjust channels to finished height of paving. Fit Adjustable Corner element and set to height Fit end plate. Fit and screw-lock standard gratings. Cut Adjustable Length grating maintaining screw-lock centre. Mitre 1m long grating to corner unit maintaining screw-lock centre. Note. In certain instances it may be possible to cut the end of a channel if the screw jack adjuster is sufficiently inset from the end of the channel, but this will eliminate “drop and lock” connection. Caution. Cutting through the channel at any point between the screwjacks will result in loss of height adjustment.
ACO Building Drainage, ACO Business Park, Shefford, Bedfordshire SG17 5TE Tel: 01462 816666
SETTING OUT & INSTALLATION FreeDeck Height Adjustable Example 2 - Setting out from corner A channel system with corner where length multiple is less than 500mm (e.g. 13.35m) Notes A channel and grate system manufactured in 0.5m and 1m lengths. Height and length adjustable. Requires cutting of one grate for corner and one grate for length adjustment. Fully formed variable and 90º angles with mitred or butt grating (grates must be cut). To calculate mix of channel lengths, round down metreage to nearest whole number and deduct 1 metre then: add for 1 x 0.5m channel (+ grate), 1 x Adjustable Length section (+ 0.5m grate), 1 x 0.5m channel (+ 1.0m grate).
Materials 1 x End stop. 1 x 0.5m channel + 1 x 0.5m grate (to attach end plate). 1 x Adjustable Length section + 1 x 0.5m grate (to cut down and create 350mm section). 12 x 1m standard channels + grates. 1 x 0.5m channel + 1 x 1m grate (to mitre). 1 x Adjustable Corner element.
Work Sequence 0.5m channel + 1m grate to mitre
Adjustable Length set to 350mm + 1 x 0.5m grate to cut
0.5m channel + 0.5m grate
12 x 1m channels + grates End plate
Adjustable Corner
Lay out channels-only working away from corner starting with the 0.5m length followed by the 12 x 1m lengths then Adjustable Length and then the remaining 0.5m length. (Note. The Adjustable Length makes up the 350mm difference in channel length). Fit Adjustable Length – no cutting of Adjustable Length or channels is necessary. Adjust channels to finished height of paving. Fit Adjustable Corner element and set to height. Fit end plate. Fit and screw-lock standard gratings. Cut Adjustable Length grating maintaining screw-lock centre. Mitre 1m long grating to corner unit maintaining screw-lock centre. Note. In certain instances it may be possible to cut the end of a channel if the screw jack adjuster is sufficiently inset from the end of the channel, but this will eliminate “drop and lock” connection. Caution. Cutting through the channel at any point between the screwjacks will result in loss of height adjustment.
ACO Building Drainage, ACO Business Park, Shefford, Bedfordshire SG17 5TE Tel: 01462 816666