ADJUSTABLE PAVING SUPPORT PEDESTALS ARE DESIGNED FOR USE WHERE LARGER CLEARANCES ARE REQUIRED, CONTINUAL AND IRREGULAR CHANGES IN HEIGHT THRESHOLD OCCUR AND FOR MORE HIGH-END FINISHES

a1Most roofs are built-to-falls for drainage purposes. Where the level between the door threshold and the drainage outlet is significant, where the roof falls in more than one direction, where large drops or channels are present, or where there are multiple and complicated changes in the fall and levels across the roof – then the ASP range of Adjustable Support Pedestals are the perfect tools.

This is a suspended system – the weight of the slab holds everything in place.

Wallbarn’s ASP adjustable support pads are designed with a telescopic stem which is wound up and down to achieve a completely flat upper paving surface. Changes to height can be made whilst the slab is in place. This saves a great deal of time and labour.

The rainwater runs between and under the slabs, so there is no standing water left on the surface. This improves health & safety as it makes the paved area less slippery.

More roof and balcony designs incorporate a completely flat upper surface in order to utilise them more effectively as leisure areas. More attractive paving with spirit-level-flat finishes can be achieved using a much larger variety of different stone and slab shapes using our ASP supports.

ASP Adjustable Paving Support Pedestals

ASP Adjustable Paving Support Pedestals

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Hardwearing, attractive areas can be created on what may have been left as exposed waterproofing membranes. Not only does this help protect potentially vulnerable areas and improve aesthetics, but it increases the yield of the building footprint significantly. These robust support pads can withstand concentrated loads of 400kg each, and the 200mm diameter base plate allows the weight to be evenly spread to avoid point loading onto the deck beneath.

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As this is a suspended system there are no mechanical fixings involved. The slabs can simply be lifted up should the roof deck need to be inspected in the future for damage or leaks.

ASP support pedestals are available from 35mm to 365mm high (the ASP EXTRA pads go to 380mm – see below).

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The headpieces and baseplates are identical across the entire range, so even when there is a very large fall across the roof deck, the interface between the surface beneath and the fitting for the paving slabs is identical.

Click Here To See the Entire Height Range

Wallbarn also has different products which offer greater height ranges. Please see our Mini Megapads here for adjustable units from 22mm; our ASP EXTRA pads here for units up to 380mm and the heavy Megapad page range up to 620mm for more details.

POSITIONING THE SLAB

The headpiece is designed with four positioning lugs set out in a cross formation. The corners of four separate slabs are laid onto each headpiece and are butted up to the lugs to give a straight, uniform paving line. This helps speed up the installation process significantly.

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Suspending the slabs creates an air gap which helps ventilate the deck beneath. Drainage water has a clear channel in which to flow so no blockages should occur.

ASP Adjustable Paving Support Pedestals
ASP Adjustable Paving Support Pedestals
ASP Adjustable Paving Support Pedestals
ASP Adjustable Paving Support Pedestals

 Unsightly objects such as cables, water pipes and drainage outlets underneath the paving slabs can be hidden. This improves the aesthetics and also increases the roof footprint.

The support pads come in four parts: the base plate, a threaded stem and nut fixing and the head plate complete with positioning lugs. The nut and screw fixing is very easy to rotate up or down, and the height can be changed whilst the slab in in position on the headpiece.

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 ASP ADJUSTABLE SUPPORT PEDESTALS NOW GO EVEN HIGHER

ASP ADJUSTABLE SUPPORT PEDESTALS We have designed an extension shank for ASP and TD pedestals measuring 145mm high.

This extension shank is fitted into the baseplate of the ASP or TD support to increase the height up to a maximum of 365mm. The extension can be applied to supports of 65mm and higher, but they allow installers to continue using ASP supports to much larger heights

This extends the current range from 220mm at its highest up to 365mm, whilst still maintaining the weight tolerance and stability associated with Wallbarn ASP pedestals.

 

 

ASP ADJUSTABLE SUPPORT PEDESTALS
ASP ADJUSTABLE SUPPORT PEDESTALS
ASP ADJUSTABLE SUPPORT PEDESTALS
ASP ADJUSTABLE SUPPORT PEDESTALS
ASP ADJUSTABLE SUPPORT PEDESTALS

DETAILING – DIFFERENT SIZED SLABS

Wallbarn can offer a number of different headpieces to cater for different sized slabs or different situations. If the slab is very thin, for example, it may be necessary to place a flat-headed pedestal under the centre of it to give adequate support. Designers may require larger gaps between the slabs. In this case 4mm, 6mm or 10mm wide lug pieces can be used.

DETAILING – PAVING UP TO EDGES

Paving directly up to the wall and around corners is easy. Installers can use the 150mm diameter baseplate.

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Wallbarn supplies base plates with a smaller diameter which means when the area is paved tight up against the wall or parapet the slabs are not left overhanging the headpiece. This means less risk of the slab at the edge moving, giving greater stability.

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hhh3By either breaking off two of the positioning lugs or purchasing special two lugged headpieces, users can place two edges (rather than four) of the paving slab onto the headpiece and then butt the slabs right up to the wall or edge.

The two slabs up against the wall are sufficiently supported and the weight is still being drawn down through the centre of the baseplate and onto the deck in a consistent manner. This creates a neat finish and adequately supports the slabs.

DIFFERENT HEADPIECES

The standard headpiece for the ASP range is four positioning lugs measuring 2.2mm thick and 18.5mm high set out in a cross formation at 90° to each other. However, Wallbarn can supply a number of different headpieces according to the paving design and requirements.

Link to mini page

Lugs 4mm, 6mm and 10mm thick are available, as well as small 10mm high lugs suitable for use with thinner porcelain tiles, for example (always check with the tile manufacturer that the tile is strong enough to be used in a suspended system). Headpieces with two lugs instead of four are available and flat headed supports can also be purchased.

SLOPE CORRECTORS

And with the new base level slope corrector, contractors can be assured of completely flat, stable paving on roofs built-to-falls.

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These wedge shaped levellers clip into the base plate and ensure the slabs do not rock or tilt as the slope is corrected at the bottom, so the force of gravity is still going directly vertical. This is a much more stable and secure method of slope correction than by adjusting the head of the pedestal.

The top of the pedestal is totally flat and the force of gravity is vertically downwards. Using slope correctors eliminates the often time consuming process of snapping levelling shims into quadrants and trying to get the levels correct.

They are available in 3 sizes:

1% slope 1 in 100 fall 0.57 °
2% slope 1 in 50 fall 1.11 °
3% slope 1 in 33 fall 1.71 °

More than one slope corrector can be used underneath the baseplates so larger gradients can be accommodated easily.

TECHNICAL DATA
T E C H N I C A L   D A T A
CODE HEIGHT DIAMETER OF HEAD DIAMETER OF BASE LUG WIDTH LUG HEIGHT WEIGHT TOLERANCE TEMPERATURE TOLERANCE
MEGA 22 22-30mm Please see our Megapad page for further details
MEGA 28 28-37mm
ASP 35 35-50mm 120mm 200mm 2.2mm, 4mm,6mm or 10mm 18.5mm or 10mm 400kg -40°C to +75°C
ASP 50 50-70mm 120mm 200mm 2.2mm, 4mm,6mm or 10mm 18.5mm or 10mm 400kg -40°C to +75°C
ASP 65 65-100mm 120mm 200mm 2.2mm, 4mm,6mm or 10mm 18.5mm or 10mm 400kg -40°C to +75°C
ASP 95 95-130mm 120mm 200mm 2.2mm, 4mm,6mm or 10mm 18.5mm or 10mm 400kg -40°C to +75°C
ASP 125 125-160mm 120mm 200mm 2.2mm, 4mm,6mm or 10mm 18.5mm or 10mm 400kg -40°C to +75°C
ASP 155 155-190mm 120mm 200mm 2.2mm, 4mm,6mm or 10mm 18.5mm or 10mm 400kg -40°C to +75°C
ASP 185 185-220mm 120mm 200mm 2.2mm, 4mm,6mm or 10mm 18.5mm or 10mm 400kg -40°C to +75°C
ASP EXT 210 210-245mm 120mm 200mm 2.2mm, 4mm,6mm or 10mm 18.5mm or 10mm 400kg -40°C to +75°C
ASP EXT 240 240-275mm 120mm 200mm 2.2mm, 4mm,6mm or 10mm 18.5mm or 10mm 400kg -40°C to +75°C
ASP EXT 270 270-305mm 120mm 200mm 2.2mm, 4mm,6mm or 10mm 18.5mm or 10mm 400kg -40°C to +75°C
ASP EXT 300 300-335mm 120mm 200mm 2.2mm, 4mm,6mm or 10mm 18.5mm or 10mm 400kg -40°C to +75°C
ASP EXT 330 330-365mm 120mm 200mm 2.2mm, 4mm,6mm or 10mm 18.5mm or 10mm 400kg -40°C to +75°C

 

Slope correctors can be used with all ASP pedestals:

CODE

OUTER DIAMETER

INNER DIAMETER

PERCENATE SLOPE

DEGREE OF SLOPE

WEIGHT TOLERANCE

SLOPE 1

200mm

82mm

1%

0.57°

800kg

SLOPE 2

200mm

82mm

2%

1.11°

800kg

SLOPE 3

200mm

82mm

3%

1.71°

800kg